20. Locomotion and Movements Class XI

1. ATPase of the muscle is located on

A. Actin

B. Myosin

C. Troponin

D. Sarcoplasm

Answer

Ans.(B)

---

2. Knee & Elbow joints are example of

A. Saddle joint

B. Ball and socket joint

C. Pivot joint

D. Hinge joint

Answer

Ans.(D)

---

3. Synovial joints are

A. Pivot

B. Hinge

C. Ball & socket

D. All of these

Answer

Ans.(D)

---

4. Number of true ribs is

A. 7

B. 3

C. 9

D. 2

Answer

Ans.(A)

---

5. Which of the following is true statement?

A. Humerus articulates with Acetabulum of Pelvic girdle

B. Humerus articulates with Glenoid cavity of Pelvic girdle

C. Humerus articulates with Glenoid cavity of Pectoral girdle

D. Humerus articulates with Acetabulum of Pectoral girdle

Answer

Ans.(C)

---

6. Find out the correct match.

A. Muscular dystrophy is age related shortening of muscle

B. Osteoporosis is due to reduction in bone mass

C. Gout – auto immune disorder which inhibits sliding of myosin filament

D. Myasthenia Gravis – Inflammation due to extra deposition of uric acid

Answer

Ans.(B)

---

7. Locomotion in lower organisms is

A. by pseudopodia

B. by cilia & flagella

C. by tentacles

D. All of the above

Answer

Ans.(D)

---

8. Skeletal muscle fibre is

A. Multi nucleated

B. uni nucleated

C. bi nucleated

D. anucleated

Answer

Ans.(A)

---

9. Which muscle is adapted to be highly resistant to fatigue ?

A. Cardiac

B. Striped

C. Unstriped

D. Voluntary

Answer

Ans.(A)

---

10. Which one of the following membranes secrete a watery fluid that lubricates and cushions the joint?

A. Tendons

B. Synovial membrane

C. Ligaments

D. Cartilage

Answer

Ans.(B)

---

11. Which of the following items gives its correct total no. ?

A. Cervical vertebrae in humans -8

B. Floating ribs in humans -4

C. Amino acids found in proteins -16

D. Types of diabetes- 3

Answer

Ans.(B)

---

12. Which of the following is an example of an imperfect joint?

A. Elbow joint

B. Pubic joint

C. Suture

D. Ball and socket joint

Answer

Ans.(B)

---

13. Which of the following is a sesamoid bone?

A. Pectoral girdle

B. Pterygoid

C. Pelvis

D. Patella

Answer

Ans.(D)

---

14. Which of the following is the only movable position of the skull?

A. Maxilla

B. Mandible

C. Frontal bone

D. Zygomatic bone

Answer

Ans.(B)

---

15. Which of these is contractile protein of a muscle?

A. Tubulin

B. Tropomyosin

C. Mysosin

D. All of these

Answer

Ans.(C)

---

16. The expanded portions of the _________ are Calcium storage sites.

A. Sarcoplasmic reticulum

B. Sarcoplasm

C. Neuromuscular junctions

D. Myofibrils

Answer

Ans.(A)

---

17. Which of the following muscles draw the lower jaw, tongue and the head backward?

A. Abductor

B. Retractor

C. Proctor

D. All of these

Answer

Ans.(B)

---

18. Which of the following is striped muscle but not voluntary?

A. Wrist muscle

B. Shank

C. Cardiac muscle

D. Abdominal

Answer

Ans.(C)

---

19. Which one of the following is correct pairing of body part and the kind of muscle tissue that moves it?

A. Iris- involuntary smooth muscle

B. Heart wall- involuntary unstriated muscle

C. Biceps of upper arm- smooth muscle fibres

D. Abdominal wall- smooth muscle

Answer

Ans.(A)

---

20. Which of the following bones make up the structure of the palm?

A. Metacarpal

B. Tarsal

C. Carpal

D. Phalanges

Answer

Ans.(A)

---

21. The supportive skeletal structures in the human external ears and nose tip are

A. Ligament

B. Areolar tissue

C. Bone

D. Cartilage

Answer

Ans.(D)

---

22. The two protein molecules closely associated with actin filaments are

A. Actin and Myosin

B. Actin & Tropomyosin

C. Troponin & Tropomyosin

D. Tubulin & Tropomyosin

Answer

Ans.(C)

---

23. Cells and their functions are matched below, which is the correct option?

A. Osteoblast- bone forming cells

B. Osteoclasts- bone absorbing cells

C. Osteoblasts- cartilage forming cells

D. both a & b are correct

Answer

Ans.(D)

---

24. Thoracic cage of man is formed of

A. Ribs, sternum and thoracic vertebrae

B. Ribs and thoracic vertebrae

C. Ribs, sternum and lumbar vertebrae

D. Ribs and sternum

Answer

Ans.(A)

---

25. Which one of the following statement is true about spongy bone?

A. Unorganised appearance

B. Lighter than compact bone

C. Surrounds the bone marrow cavity

D. All of these are correct

Answer

Ans.(D)

---

26. The type of muscles present in our

A. thigh are striated and voluntary

B. upper arm are smooth fibres fusiform in shape

C. heart are involuntary and unstriated smooth muscles

D. intestine are striated and involuntary

Answer

Ans.(A)

---

27. Motor neurons electrically stimulate nearby muscle fibres at __

A. Creative phosphate

B. Actin filament

B. Neuromuscular junction

D. Cross- bridges

Answer

Ans.(C)

---

28. Chemical ions responsible for muscle contractions are

A. Na+ and Ca2+

B. Na+ and K+

C. Ca2+ and K+

D. Ca2+ and Mg2+

Answer

Ans.(D)

---

29. Assertion: Knee joint is the hinge type of joint

Reason: Femur, Patella and Fibula are associated with knee joint.

A. Assertion and reason, both are correct and reason is the correct explanation of assertion.

B. Assertion and reason, both are correct. But reason is not correct explanation of assertion.

C. Assertion is correct, but reason is wrong.

D. Assertion is wrong but reason is correct.

Answer

Ans.(C)

---

30. In hurdle race, what is the major energy source of the leg muscle?

A. Preformed ATP

B. Glycosis

C. Pyruvate & lactate

D. Oxidative metabolism

Answer

Ans.(A)

---

31. Which one of the followings stands incorrect regarding skeletal muscles?

A. Responsible for voluntary movement

B. Contract and expand slowly

C. Cell fibres have multiple nuclei

D. Stimulated by central nervous system

Answer

Ans.(B)

---

32. Which kind of joint (sutures of the cranium) is essentially immovable?

A. Cartilaginous joint

B. Fibrous joint

C. Hinge joint

D. Ball and socket joint

Answer

Ans.(B)

---

33. Which of the following is a wrist bone?

A. Pubis

B. Ulna

C. Carpal

D. Femur

Answer

Ans.(C)

---

34. Which is the largest synovial joint of the human body?

A. Knee joint

B. Shoulder joint

C. Elbow joint

D. Hip joint

Answer

Ans.(D)

---

35. Ilium, ischium and pubis join at the ________ to form coxal bone.

A. Acetabulum

B. Ilium

C. Sternum

D. Glenoid cavity

Answer

Ans.(A)

---

36. When bone becomes hard, the osteocytes are trapped in hollow chambers called

A. Osteoblasts and osteoclasts

B. Red bone marrow

C. Cartilage

D. Lacunae

Answer

Ans.(D)

---

37. Voluntary muscular coordination is under control of

A. Cerebellum

B. Cerebral hemisphere

C. Cerebrum

D. Medulla oblongata

Answer

Ans.(A)

---

38. Vertebral column extends from the skull to

A. Pectoral girdle

B. Pelvis

C. Frontal bone

D. Phalanges

Answer

Ans.(B)

---

39. Which molecule provides ATP during muscular contraction?

A. Creative phosphate

B. Hemoglobin

C. Myoglobin

D. Myosin

Answer

Ans.(A)

---

40. In a new born baby, the flat bones in its skull are separated by large spaces filled with fibrous connective tissues. These soft spots are called

A. Fontanels

B. Chitin

C. Bursae

D. Menisci

Answer

Ans.(A)

---

41. The segment of a myofibril between two Z-lines is called

A. Sarcomere

B. Sarcoplasm

C. Sarcolemma

D. Sarconema

Answer

Ans.(A)

---

42. What joint is found between the ribs and sternum?

A. Cartilaginous

B. Hinge

C. Angular

D. Fibrous

Answer

Ans.(A)

---

43. The joint between the atlas and axis is

A. Ball and socket joint

B. Saddle

C. Pivot

D. Angular

Answer

Ans.(C)

---

44. The clavicle articulates with ___________ of scapula

A. Acromion process

B. Glenoid cavity

C. Acetabulum

D. Ball and socket joint

Answer

Ans.(B)

---

45. The contractile protein of skeletal muscle involving ATPase activity is _

A. Actin

B. Myosin

C. Troponin

D. Tropomyosin

Answer

Ans.(B)

---

46. Muscle fatigue sets in due to non availability of __

A. Calcium

B. ATP

C. Actin binding site

D. Mg factor

Answer

Ans.(A)

---

47. Upon stimulation of skeletal muscles Calcium is immediately made available for binding to Troponin from __

A. Blood

B. Sarcoplasmic reticulum

C. Lymph

D. Bone

Answer

Ans.(B)

---

48. The functional unit of contractile system in striated muscle is

A. Myosin

B. Cross bridges

C. Z band

D. Sarcomere

Answer

Ans.(D)

---

49. What is sarcomere?

A. part between two H-lines

B. part between two A-lines

C. part between two Z-lines

D. part between two I-bands

Answer

Ans.(C)

---

50. Which muscle is adapted to be highly resistant to fatigue

A. cardiac muscle

B. Striped

C. Unstriped

D. voluntary

Answer

Ans.(A)

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

16. Digestion and Absorption

Q1.What is the dental formula of human being?

a)2123/2123

b)2123/2213

c)2114/2114

d)2122/2122

Answer

Ans.(a)

---

Q2.Which one serves as a passage for both food and air?

a)Larynx

b)Pharynx

c)Gullet

d)Glottis

Answer

Ans.(b)

---

Q3.Bile juice is stored in which organ of human body?

a)Gall bladder

b)Liver

c)Kidney

d)Pancreas

Answer

Ans.(a)

---

Q4.Which one of the following sequence is in correct order?

a)Descending portal colon→Rectum→Anus

b)Colon→Anus→Rectum

c)Stomach→Jejunum→Duodenum

d)Ileum→Colon→Caecum

Answer

Ans.(a)

---

Q5.Given below the diagram of the transverse section of alimentary canal.Label it correctly and Choose the correct option accordingly.

a)A-Muscularis B-Serosa C-Submucosa D-Mucosa

b)A- Muscularis B-Serosa C-Mucosa D-Submucosa

c)A-Serosa B-Muscularis C-Mucosa D-Submucosa

d) A- Serosa B- Muscularis C-Submucosa D-Mucosa

Answer

Ans.(d)

---

Q6.How many salivary glands are present in human being?

a)6

b)10

c)8

d)12

Answer

Ans.(a)

---

Q7.Which one of the following is regarded as source of instant energy?

a)Fats

b)Carbohydrates and Fats

c)Carbohydrates only

d)Minerals and Vitamins

Answer

Ans.(c)

---

Q8.The innermost layer of human gut forms irregular folds in the stomach which are known as

a)lumen

b)villi

c)rugae

d)Both b) and c)

Answer

Ans.(c)

---

Q9.Common bile duct is formed by the fusion of

a)pancreatic duct and cystic duct

b)pancreatic duct and hepatic duct

c)pancreaticduct,hepatic duct and cystic duct

d)hepatic duct and cystic duct

Answer

Ans.(d)

---

Q10Which one is not associated with the secretion of saliva in human beings?

a)Parotids glands

b)Sublingual glands

c)Zymogenic cells

d)Submaxillary glands

Answer

Ans.(c)

---

---

Q11.Which enzyme is present in human saliva?

a)Ptylin

b)Pepsin

c)Enterokinase

d)Maltase

Answer

Ans.(a)

---

Q12. The diagram of large intestine of man is given below.Identify the parts labelled A, B, C, D, E and F

a)A=caecum,B=Vermiform appendix,C=Ascending colon,D=Transverse colon,E=Descending colon,

b) F=caecum,B=Vermiform appendix,E=Ascending colon,D=Transverse colon,C=Descending colon,

c) F=caecum,B=Vermiform appendix,C=Ascending colon,D=Transverse colon,E=Descending colon,

d) A=caecum,B=Vermiform appendix,D=Ascending colon,E=Transverse colon,F=Descending colon,

Answer

Ans.(a)

---

Q13.A large lymph vessel present in the villus of small intestine is called

a)crypts

b)lacteal

c)Peyer’s patches

d)valve of kerkring<

Answer

Ans.(b)

---

Q14.Which of the following match is correct?

a)Renin-Protein

b)Trypsin-starch

c)Invertase-Sucrase

d)Amylase-Lactose

Answer

Ans.(c)

---

Q15.Match the following columns

Column -I                     Column-II

a-Salivary amylase         1. Proteins

b -Bile salts                    2. Milk protein

c-Renin                           3. starch

d-Pepsin                         4. Lipids

e-Steapsin                       5. Emulsification of fats

a) 5 4 1 2 3

b) 3 5 2 1 4

c) 2 3 5 4 1

d) 2 3 4 5 1

Answer

Ans.(b)

---

Q16.Which one of the following sugar is most rapidly absorbed in the human gut.?

a)Glucose

b)Fructose

c)Galactose

d)Sucrose

Answer

Ans.(c)

---

Q17.Select the true statement regarding the digestion and absorption of food in humans.

a)Oxyntic cell in human stomach secretes proenzymes,pepsinogen and trypsinogen

b)Chylomicrons are small lipoprotein vesicles which are transported from the intestine into blood capillaries.

c)About 70% of the starch is hydrolysed by salivary amylase.

d)Fructose and aminoacids are absorbed through the intestinal mucosa with the help of carrier ions like Na+

Answer

Ans.(b)

---

Q18.Absorption of fat occours through the process of

a)active transport

b)passive transport

c)osmosis

d)simple diffusion

Answer

Ans.(d)

---

Q19.What is common among amylase,renin and trypsin?

a)all are produced in stomach

b)all act at a pH lower than 7

c)all are proteins

d)all are proteolytic enzymes

Answer

Ans.(c)

---

Q20.What name would you suggest for a thoroughly mixed food with gastric juices by the churning movements of muscular stomach wall?

a)Bolus

b)Chyme

c)Either bolus or chime

d)none of these

Answer

Ans.(b)

---

---

Q21.Which is the inactive form of enzyme,pepsin?

a)Pepsinogen

b)Protease

c)Trypsin

d)Peptones

Answer

Ans.(a)

---

Q22.Pepsinogen is converted into active form of enzyme pepsin with the help of which of the following compound?

a)Proenzyme

b)Hydrochloric acid

c)Electrolyte

d)Bicarbonates

Answer

Ans.(b)

---

Q23.Which enzyme is responsible for the digestion of milk in infants?

a)Pepsin

b)Trypsin

c)Renin

d)various proteolytic enzyme

Answer

Ans.(c)

---

Q24.Maximum absorption of water occours in

a)caecum

b)colon

c)small intestine

d)large intestine

Answer

Ans.(b)

---

Q25.Succus entericus is secreted by

a)Goblet cells

b)Crypts of Lieberkuhn

c)Islets of lengerhans

d)Paneth cell

Answer

Ans.(b)

---

Q26.What is the composition of bile?

a)bile pigment and bile salts

b)bile pigments and cholesterol

c)cholesterol and phospholipids

d)All the above

Answer

Ans.(d)

---

Q27.Which of the following present in the filiform papillae of the tongue?

a)chemoreceptors

b)thermoreceptors

c)tactile receptors

d)taste buds

Answer

Ans.(c)

---

Q28.The gastric juice contain

a)trypsin,renin,pepsin

b)pepsin,trypsin,amylase

c)pepsin ,renin,

d)trypsin,pepsin,lipase

Answer

Ans.(c)

---

Q29.Fill in the blanks with appropriate options to complete the given equation

Fats—– A—àB—pancreatic lipase_–>Monoglycerides +Fatty acids

a)A-Lysozyme, B-Polyglycerides

b)A-Lysozyme, B-Diglycerides

c)A-Lipase , B)Diglycerides

d)A-Lipase B)Polyglycerides

Answer

Ans.(c)

---

Q30.Bile salt activates which enzyme?

a)Lipase

b)pancreatic amylase

c)Pepsinogen

d)Trypsinogen

Answer

Ans.(a)

---

---

Q31.Choose the incorrect statement regarding human digestive system with reference to a normal person.

a)human saliva is slightly acidic

b)In human being, four pair of salivary gland secretes saliva

c)The quantity of saliva in adult man may be 1 to 1.5L day

d)Enzyme amylase present in saliva is responsible for the break down of starch into simpler sugar

Answer

Ans.(b)

---

Q32.The given below diagram represents a duct system of pancreas,liver and gall bladder.Label the diagram from A to E.

a)A-Gall bladder, B-common bile duct, C-Hepato pancreatic duct D-Pancreas E-Pancreatic duct

b) A-Gall bladder, B- bile duct, C-Hepato pancreatic duct D-Pancreatic duct E-Pancreas

c) A-Gall bladder, B- bile duct, E-Hepato pancreatic duct C-Pancreatic duct D-Pancreas

d) A-Gall bladder, B-common bile duct, E-Hepato pancreatic duct D-Pancreatic duct C-Pancreas

Answer

Ans.(d)

---

Q33.Which form of fats is absorbed into the intestinal cells?

a)micelles

b)chylomicrons

c)fatty acids

d)both a) and b)

Answer

Ans.(a)

---

Q34.Function of caecum is to carryout digestion of

a)starch

b)proteins

c)cellulose

d)fats

Answer

Ans.(c)

---

Q35.Part of the stomach which opens into the duodenum?

a)cardiac

b)pyloric

c)fundus

d)body

Answer

Ans.(b)

---

Q36.Which is the hardest material of the human body?

a)Dentine

b)Enamel

c)Teeth

d)Bone

Answer

Ans.(b)

---

Q37.Which one of the following pairs of food components in humans reaches the stomach totally undigested

a)starch and cellulose

b)protein and starch

c)starch and fat

d)fat and cellulose

Answer

Ans.(d)

---

Q38.A young infant may be feeding entirely on mother’s milk which is white in colour but he possesses yellowish coloured stools.What is this yellow colour due to?<p> a)Pancreatic juice poured into duodenum

b)Intestinal juice

c)Bile pigments passed through bile juice

d)Undigested milk protein casein.

Answer

Ans.(c)

---

Q39.The absorption of water,alcohol and monosaccharidesoccour in

a)gastric mucosa

b)mucosa of ileum

c)intestinal mucosa

d)none of the above

Answer

Ans.(a)

---

Q40.Select what is not true of intestinal villi among followings:

a)They possesses microvilli

b)They increase the surface area

c)They are supplied with capillaries and the lacteal vessels

d)They only participate in digestion of fats

Answer

Ans.(d)

---

---

Q41.Hepatopancreatic duct opens into the duodenum and carries

a)Bile

b)Pancreatic juice

c)both bie and pancreatic juice

d)saliva

Answer

Ans.(c)

---

Q42.One of the following is not a common disorder associated with digestive system:

a)Tetanus

b)Diarrhoea

c)Jaundice

d)Dysentery

Answer

Ans.(a)

---

Q43.Which one of the following is a non reducing carbohydrate?

a)Maltose

b)Sucrose

c)Lactose

d)Ribose 5 –phosphate

Answer

Ans.(b)

---

Q44.Where do certain symbiotic microorganisms normally occour in human body?

a)Caecum

b)oral lining and toungue surface

c)Vermiform appendix and rectum

d)Duodenum

Answer

Ans.(a)

---

Q45.What is the another name of gastro oesophageal sphincter?

a)pyloric sphincter

b)gastro duodenal sphincter

c)cardiac sphincter

d)sphincter of oddi

Answer

Ans.(c)

---

Q46.In humans,which opening is guarded by sphincter of Oddi?

a)Opening of hepatopancreatic ampulla into duodenum

b)Opening of stomach into duodenum

c)Opening of oesophagus into stomach

d)Opening of bile duct into gall bladder

Answer

Ans.(a)

---

Q47.The epithelium of the mucosa remain unaffected from HCl due to

a)Mucous continues to lubricate the inner lining

b)bicarbonates present in the gastric juices protect the linings

c)both a) and b)

d)none of the above

Answer

Ans.(c)

---

Q48.Which of the following cells produce HCl ?

a)B-cell

b)α-cell

c)Oxyntic cell

d)Chief cell

Answer

Ans.(c)

---

Q49.What is frenulum?

a)It is the fold by which tongue is attached to the floor of oral cavity

b)it is an adenoid which is present on pharyngeal wall

c)it is a tonsil like structure

d)it is a V-shaped furrow which divides the surface of tongue.

Answer

Ans.(a)

---

Q50.Thecodont,diphyodont and heterodont teeth are characterstic of

a)Aves

b)Reptiles

c)Mammals

d)Amphibians

Answer

Ans.(c)

---

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

15. Plant Growth and Development

1. Who classified the plants into different categories on the basis of photoperiodic responses

(A) benthem and Hooker

(B) cajlachjan

(C) Garner and Allard

(D) Linneus

Answer

Ans.(C)

---

2. The plant which needs light period shorter than critical period is called

(A) Short day plant(SDP)

(B) Long day plant(LDP)

(C) Day neutral plant(DNP)

(D) Short long day plant(SLDP)

Answer

Ans.(A)

---

3. Vernalization is also called as

(A) Spiringification

(B) Yarovization

(C) Chilling effect

(D) All of these

Answer

Ans.(D)

---

4. The harmone which stimulates the flowering in vernalized plant is

(A) Florigen

(B) Vernalin

(C) Cytokinin

(D) Gibberellin

Answer

Ans.(B)

---

5. Vernalization is

(A) Growth curve related to light

(B) Effect of photoperiods on plant growth

(C) Speeding up ability to flower by low temperature

(D) Diurnal photoperiodicty

Answer

Ans.(C)

---

6. Epigeal germination is found in

(A) Gram

(B) Pea

(C) Castor

(D) Jowar

Answer

Ans.(C)

---

7. Which of the following substance acts as natural germination inhibitor?

(A) Cytokinin

(B) Gibberellin

(C) Ethylene

(D) Caumarin

Answer

Ans.(D)

---

8. The part of seed which emerges out first during germination is

(A) Radicle

(B) Plumule

(C) Root

(D) Shoot

Answer

Ans.(A)

---

9. Indefinite growth of plants is due to presence of

(A) Meristemtic cells

(B) Parenchyma

(C) Permanent tissue

(D) Vascular tissue

Answer

Ans.(A)

---

10. In which of the following, rate of growth gradually slows down and comes to steady stage?

(A) Lag phase

(B) Log phase

(C) Exponential phase

(D) Stationary phase

Answer

Ans.(D)

---

11. Identify the true statement/statements regarding growth and development in organisms.

(A) Growth is intrinsic.

(B) Growth is the physical development while development is the physiological growth.

(C) Growth is accompanied by development.

(D) All of these.

Answer

Ans.(D)

---

12. Vernalization treatment can convert

(A) a biennial into an annual.

(B) a spring variety into a winter variety.

(C) an annual into a perennial.

(D) all of these .

Answer

Ans.(D)

---

13. Scarification is a method of overcoming dormancy in seeds which

(A) contain immature embryo.

(B) Hard seed coat.

(C) possess germination inhibiting substance.

(D) contain fully formed but physiologically unripe embryo.

Answer

Ans.(B)

---

14. Identify the precursor substance used in the biosynthesis of gibberellins in plants.

(A) Gibberellic acid

(B) Methionine

(C) Acetyl Co-A

(D) Tryptophan

Answer

Ans.(C)

---

15. Seeds in which germination is stimulated by light are called

(A) Photoblastic seeds

(B) Thermoblastic seed

(C) Positively photoblastic

(D) Negatively photoblastic

Answer

Ans.(C)

---

16. The chemical substances like phenolics, caumarins, ferulic acid are

(A) Growth harmones

(B) Growth inhibitors

(C) Germination inhibitors

(D) Germination promoters

Answer

Ans.(B)

---

17. The seeds which can not germinate in absence of light is called

(A) Positively photoblastic seed

(B) Negatively photpblastic seed

(C) Photoblastic seed

(D) Photpperiodic seeds

Answer

Ans.(A)

---

18. Germination inhibitors leached out by one plant may inhibit germination of seeds of other plants is called as

(A) Allopathy

(B) Allelopathy

(C) Dormancy

(D) Aromapathy

Answer

Ans.(B)

---

19. The dormancy of seed is due to mechanical resistance of seed coat in

(A) Allisma

(B) Capsella

(C) Amaranthus

(D) All the above

Answer

Ans.(D)

---

20. Which of the following growth harmones in plant is influenced by light?

(A) Gibberellin

(B) Cytokinin

(C) Auxin

(D) Ethylene

Answer

Ans.(C)

---

21. A seed which is just waiting for favourable environmental condition to germinate is called

(A)Dormant seed

(B)Quiescent seed

(C) Non-viable seed

(D) Dead seed

Answer

Ans.(B)

---

22. Richmond – Lang effect is

(A) Morphogenesis

(B) Delay of senescence under control of cytokinin

(C) Induction of early flowering

(D) Protection of organs

Answer

Ans.(B)

---

23. 2,4-D is used as

(A) Florigen

(B) Vernalin

(C) Herbicide

(D) Fungicide

Answer

Ans.(C)

---

24. The type of germination in which cotyledons come above the ground is called as

(A) Epigeal

(B) Hypogeal

(C) Viviparpus

(D) Oviparous

Answer

Ans.(A)

---

25. In most of monocot plants, germination is

(A) Epigeal

(B) Hypogeal

(C) Viviparous

(D) Hydrogeal

Answer

Ans.(B)

---

26.The phase of growth which is the first phase and represents lag phase of growth curve is

(A) Formative phase

(B) Cell enlargement phase

(C) Maturation phase

(D) Stationery phase

Answer

Ans.(A)

---

27. The lateral meristem in plant is reponsible for

(A) Primary growth

(B) Secondary growth

(C) Exponential growth

(D) Growht in elongation

Answer

Ans.(B)

---

28. Plant growth can be measured by

(A) Horizontal microscope

(B) Crescograph

(C) Auxanometer

(D) All the above

Answer

Ans.(D)

---

29.Auxins were first isolated form the plants by

(A) Darwin

(B) F.W.Wend

(C) Boysen-Jensen

(D) Sachs

Answer

Ans.(B)

---

30. Apical dominance is due to

(A)Abcisic acid

(B) Gibberelic acid

(C) Auxin

(D) Cytokinin

Answer

Ans.(C)

---

31. The term auxin was coined by

(A) Skoog

(B) Haberlandt

(C) Miescher

(D) F.W. Went

Answer

Ans.(D)

---

32. Precursor of Indole acetic acid (natural auxin) is

(A) Glycine

(B) Methionine

(C) Isopentynyl pyrophosphate

(D) Tryptophan

Answer

Ans.(D)

---

33. All the following hormones are growth inhibitors except

(A) Absiccic acid

(B) dormin

(C) ethylene

(D) IAA

Answer

Ans.(D)

---

34. Which of the following is a gaseous hormone

(A) IBA

(B) NAA

(C) Abscicic acid

(D) Ethylene

Answer

Ans.(D)

---

35. Which of the following bioassays are used to detect the presence of auxin

(A) Avena curvature test and tobacco pith culture

(B) Split pea stem curvature test and tobacco pith culture

(C) Avena curvature test and Split pea stem curvature test

(D) tobacco pith culture only

Answer

Ans.(C)

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

19. Excretory Products and their elimination Class XI

1. Main function of uriniferous tubules

a) Concentration of urine

b) Passage of urine

c) Reabsorption of useful substances from glomerular filtrate

d) Removal of urea and other waste from blood

Answer

Ans.(a)

---

2. The mechnism of urine foundation nephrone involves

a) Utrafication

b) Secretion

c) Reabsorption

d) All of above

Answer

Ans.(b)

---

3. Which hormone induced the process of reabsorption from glomerouous?

a)Oxytosin

b) Vasopression

c) Relkgin

d) Calsitonin

Answer

Ans.(b)

---

4. Glucose is reabsorbed from glomerular filterate though

a) Active transport

b) Passive transport

c) Osmosis

d) Difusion

Answer

Ans.(d)

---

5. Excretory product of birds and raptiles is

a)Urea

b) Uric acid

c) Ammonia

d) Creatinin

Answer

Ans.(a)

---

6. Part not belonging to urinferous tubule is

a) Glomerules

b) Henle’s loop

c) Distalconvoluted tuble

d) Connecting tubule

Answer

Ans.(d)

---

7. The two kidneys lie:

a) At the level of ovaries

b) At the same level

c) Left kidneyat a higher level than the right one

d) Right kidneyat a higher level than the left one

Answer

Ans.(b)

---

8. Which blood vessel takes blood awayfrom kidney?

a) Renalportal vein

b) Renalvein

c) Afferent arteiote

d) Efferent artribute

Answer

Ans.(a)

---

9. Which hormone influence the activity of kidney?

a) Vasopression

b) Thyoxine

c) Vasopression & aldosterone

d) Gonadotrophin

Answer

Ans.(b)

---

10. If liver frombody is removed then which component of blood increases

a) Ammonia

b) Protein

c) urea

d) Uric acid

Answer

Ans.(a)

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

18. Body Fluids and Circulation Class XI

1.Select the wrong pair.

a)Fibrinogen : blood clotting

b) Globulin : defense

c) Albumin : osmotic balance

d)Haemoglobin : oxygen storing

Answer

Ans.(d)

---

2.Which of the following has closed circulation?

a)Snail

b)Cockroach

c)Sepia

d)Earthworm

Answer

Ans.(d)

---

3.Which of the following statement is correct?

a)Neutrophil has bilobed nucleus with granules in the cytoplasm.

b)Neutrophil has kidney shaped nucleus with granules in the cytoplasm

c)Neutrophil has multilobed nucleus without granules in the cytoplasm

d)Neutrophil has multilobed nucleus with granules in the cytoplasm

Answer

Ans.(d)

---

4.Graveyard of RBCs is ?

a)Bone marrow

b)Lymph node

c)Spleen

d)liver

Answer

Ans.(c)

---

5.Which of the following enzyme is required for the conversion of fibrinogen to fibrin?

a)Fibrinase

b)Thrombinase

c)Thrombin

d)Thrombokinase

Answer

Ans.(c)

---

6.Severe anaemia and jaundice in erythroblasosis foetalis patient is due to –

a)Destruction of foetal RBC

b)Iron deficiency in foetus

c)liver damage

d)Rh factor in foetus

Answer

Ans.(a)

---

7.20-25% of WBCs are ———- .

a)Neutrophil,

b)Monocyte

c)Eosinophil

d)Lymphocyte

Answer

Ans.(d)

---

8.Select thr correct constituents of human blood plasma

a) Na+ ,Mg++ ,Cl- , Fe++ ,Ca++

b) Na+ ,Mg++, Cl- ,Ca++ ,HCO3-

c)Na+ ,Cl- , F- , Ca++ , Mg++

d)Na+ , Cl- , Mg++ ,Ca++ , Zn++

Answer

Ans.(b)

---

9.Karl Landsteiner is associated with ———-

a)Rh blood grouping

b)ABO blood grouping

c) double circulation,

d)ECG.

Answer

Ans.(b)

---

10.Which of the following is an anticoagulant?

a)Thromboplastin

b) Globulin

c)Fibrinogen

d)Heparin

Answer

Ans.(d)

---

11.Which of the following metal ion is required in blood coagulation?

a) Na+

b)K+

c) Mg++

d) Ca++

Answer

Ans.(d)

---

12.The haemolytic disease of the new born occurs only when :

a)Husband is Rh+ and wife is Rh-

b)Mother is Rh+ and husband is Rh-

c)Mother is Rh- and foetus is Rh-

d)husband is Rh- and wife is Rh-

Answer

Ans.(a)

---

13.Which of the following are agranulocytes ?

a)Monocytes and basophils

b)Lymphocytes and neutrophil

c)Lymphocytes and eosinophil

d)Monocytes and lymphocytes

Answer

Ans.(d)

---

14.The life span of mammalian RBC is :

a)Two months

b)three months

c)four months

d) 10 to 13 days

Answer

Ans.(c)

---

15. Polycythemia refers to abnormally large number of :

a)RBC

b)WBC

c)Thrombocytes

d)lymphocytes

Answer

Ans.(a)

---

16.Transport of respiratory gases in insects takes place through:

a)blood

b)lymph

c)Alveoli,

d)Tracheal system

Answer

Ans.(d)

---

17.Digested fats are absorbed in:

a)lacteal

b)capillaries

c)artery

d)vein

Answer

Ans.(a)

---

18.The cardiac impulse originates from:

a)AV node

b) SA node

c)Brain

d)AV bundle

Answer

Ans.(b)

---

19.The correct sequence of conduction of cardiac impulse is:

a)SA node → AV node → Purkinje fibre → A V bundle

b)SA node → AV bundle → Purkinje fibre → AV node

c)SA node → Purkinje fibre → AV node → AV bundle

d)SA node → AV node → AV bundle → Purkinje fibre

Answer

Ans.(d)

---

20.There is no mixing of oxygenated and deoxygenated blood in the heart of:

a)Crow and Whale,

b)Rat and Bat,

c)Penguin and Horse,

d)All of them

Answer

Ans.(d)

---

21. Hypophysial portal vein transport blood from:

a) Pituitary gland to hypothalamus ,

b) Hypothalamus to medulla

c)Hypothalamus to medulla ,

d)Hypothalamus to pituitary gland.

Answer

Ans.(d)

---

22.The pathway of oxygen transport from lungs to leg muscle is :

a)Pulmonary vein → R. auricle → R.ventricle → Aorta

b)Pulmonary vein → L.auricle → L.ventricle → Aorta

c) pulmonary artery → auricle → L.ventricle → Aorta

d)Pulmonary artery → R.auricle → R.ventricle → Aorta

Answer

Ans.(b)

---

23.Which of these has oxygenated blood?

a)Renal vein

b)Hepatic portal vein

c)Pulmonary artery

d)Pulmonary vein

Answer

Ans.(d)

---

24. Artificial pacemaker is implanted in an individual due to defect in

a)AV node

b) SA node

c) SV node

d) Purking fibres

Answer

Ans.(b)

---

25. Lub sound is produced during heart beat is caused by:

a)Atrial systole

b)atrial diastole

c) Ventricular systole

d)Ventricular diastole

Answer

Ans.(c)

---

26. Which of the following blood cell is involved in antibody production?

a)RBC

b)neutrophil

c)T- lymphocyte

d)B-lymphocyte

Answer

Ans.(d)

---

27. Two chambered heart is a feature of:

a)Sardine and Rohu

b)Rohu and Frog

c)Salamander and Catla

d)Sardine and Lizard

Answer

Ans.(a)

---

28.The duration of cardiac cycle is:

a)0.8sec

b)0.08sec

c)72sec

d)8sec

Answer

Ans.(a)

---

29.Heart of Cockroach is:

a)3 chambered

b)13chambered

c)9chambered

d)12chambered

Answer

Ans.(b)

---

30.Which of the following is essential for coagulation of blood?

a)Calcium ions and heparin

b)Oxalates and citrates

c)Platelet factors and heparin

d)platelet factors and calcium ions

Answer

Ans.(d)

---

31. Nucleus is absent in:

a)Eosinophils

b)monocytes

c)erythrocytes

d)neutrophils

Answer

Ans.(c)

---

32. In the ECG of a normal healthy individual, one of the following waves is not represented:

a)Depolarisation of atria

b)Repolarisation of atria

c)Depolarisation of ventricle

d)Repolarisation of ventricle

Answer

Ans.(b)

---

33. The deposition of lipids on the wall lining the lumen of large and medium sized arteries is referred as:

a)thrombosis

b)Osteoporosis

c)Angina pectoris

d)Artherosclerosis

Answer

Ans.(d)

---

34. Which is the correct sequence of types of WBCs in decreasing order in terms of number per mm3 of human blood?

a)Eosinophil>basophil>neutrophil

b)Basophil>eosinophil>neutrophil

c)eosinophil>neutrophil>basophil

d)Neutrophil>eosinophil>basophil

Answer

Ans.(d)

---

35.Rh- person donated blood to Rh+ person for the second time. Then:

a)Rh+ person will die

b)Rh- person will die

c)Rh+ blood starts reacting to Rh- blood

d)Nothing happens to Rh+ person

Answer

Ans.(d)

---

36. Largest amount of urea is carried in Human by:

a)Renal vein

b)renal artery

c)hepatic vein

d)hepatic portal vein

Answer

Ans.(c)

---

37. Maximum surface area of our circulatory system is present in:

a)Capillaries

b)arteries

c)veins

d)heart

Answer

Ans.(a)

---

38. Open circulatory system is present in:

a)Periplaneta and Apis

b)Periplaneta and Pheretima

c)Pheretima and Hirudinaria,

d)Octopus and Neries

Answer

Ans.(a)

---

39. Highest amount of CO2 is carried through:

a)Pulmonary vein

b)coronary artery

c)Aorta

d)Pulmonary artery

Answer

Ans.(d)

---

40. Select the correct statement:

a)T-wave in ECG marks the end of systole

b)T-wave represents the electrical excitation of atria

c)P-wave represents depolarization of ventricle

d)QRS complex represents repolarisation of ventricle

Answer

Ans.(a)

---

41. Cardiac output is increased by:

a)Parasympathetic neural signal and adrenaline

b)Sympathetic neural signal and adrenaline

c)Sympathetic neural signal and adrenal cortical hormone

d)Sympathetic and parasympathetic neural signal

Answer

Ans.(b)

---

42. Cardiac function is moderated by a special neural centre present in:

a)Cerebellum

b)cerebrum

c)Pons

d)medulla oblongata

Answer

Ans.(d)

---

43. Which of the following is not a part of systemic circulation?

a)Pulmonary artery

b)Aorta

c)renal artery

d)superior vena cava

Answer

Ans.(a)

---

44. Select the wrong statement:

a)Hepatic portalsystem carries blood from liver to intestine

b)Hepatic portalsystemcarries blood from intestine to liver

c)Coronary circulation supply blood to cardiac muscle

d)Renal vein carries blood from kidney to inferior vena cava

Answer

Ans.(a)

---

45. SAN is located in:

a)Left atrial wall

b)Atrio ventricular septum

c)Right atrial wall

d)Inter atrial septum

Answer

Ans.(c)

---

46. Incomplete double circulation is present in:

a)Fish and amphibian

b)Amphibia and reptilia

c)reptilian and birds

d)reptilian and fish

Answer

Ans.(b)

---

47. Formed elements in the blood are trapped at the site of injury by:

a)Fibrinogen

b)Thrombin fibre

c)Prothrombin

d)fibrin

Answer

Ans.(d)

---

48. The back flow of blood from left ventricle to right auricle is prevented by:

a)Tricuspid valve

b)bicuspid valve

c)Semilunar valve

d) AV valve

Answer

Ans.(b)

---

49. Which of the following is involved in CO2 transport from brain tissue to lungs?

a)Superior vena cava, right ventricle, pulmonary artery

b)Pulmonary artery, right auricle, inferior vena cava

c)superior vena cava, inferior vena cava, left ventricle

d)Superior vena cava, right auricle, pulmonary vein

Answer

Ans.(a)

---

50. The cardiac output of a healthy individual is:

a)500ml

b)6litrs

c) 5000ml

d)50ml

Answer

Ans.(c)

---

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22