Monday, March 25, 2024

10. Cell Cycle and Cell Division Class XI

1. Who is the father of cell

a) Robert Hook

b)Robert Brown

c) Robert Michel

d) Lady Robert

Answer

Ans.(a)


2. Who discovered cell

a)Robert Hook

b)Robert Brown

c) Robert Michel

d) Lady Robert

Answer

Ans.(a)


3. What is the test material of Robert Hook

a)Muscle

b)Rose

c) Corck

d) Onion

Answer

Ans.(c)


4. Lysosome contain———enzyme

a)hydrolytic

b)rosease

c) protease

d) Onionase

Answer

Ans.(a)


5. Corck is a

a)muscle

b)plant material

c) animal material

d) All

Answer

Ans.(b)


6. What is te test material of Robert Hook

a)muscle

b)rose

c) corck

d) Onion

Answer

Ans.(c)


7. The cotrolling body of cell is

a)nucleus

b)mitochondria

c) plastids

d) all

Answer

Ans.(a)


8. Photosynthesis take place in

a)chloroplast

b)mitochondria

c) nucleus

d) All

Answer

Ans.(a)


9. A man’s body is made up

a)A cell

b)many cells

c) million of cells

d) b & c

Answer

Ans.(c)


10. Who discovered nucleus

a)Robert Hook

b)Robert Brown

c) Robert Michel

d) Lady Robert

Answer

Ans.(b)


11. Chromosome means

a) stained body

b) colourless body

c) metal body

d) plant body

Answer

Ans.(a)


12. Mtochondria responsible for

a) libration of enegy

b)excretion

c) all

d) none

Answer

Ans.(a)


13. Chromosomes are found in

a)nucleus

b)both a & c

c) ribosome

d) golgi apparatus

Answer

Ans.(a)


14. Celldivision occurs in

a)plant only

b)both a & c

c) animal only

d) none

Answer

Ans.(b)


15. Chromosomes helps to

a)maintain character

b)both a & c

c)inherit character

d) none

Answer

Ans.(b)


16. In every organism the chromosome number is

a)constant

b)both a & c

c) keep on changing

d) all

Answer

Ans.(a)


17. Centerosome is absent in

a)plant cell

b)both a &d

c) all

d) animal cell

Answer

Ans.(a)


18. Mitosis occurs in

a)somatic cells

b)both a &c

c) reproductive cells

d) all

Answer

Ans.(a)


19. Which are the among having double membranous structure

a)nucleus

b)both a &c

c) mitochondria

d) all

Answer

Ans.(d)


20. Mitosis occurs in

a)four stages

b)five stages

c) three stages

d) two stages

Answer

Ans.(a)


21. The E R & Ribsome are responsible for

a)protein synthesis

b)glycolysis

c) respiration

d) all

Answer

Ans.(a)


22. Dead organells are digested by

a)nucleus

b)both a & c

c) ribosome

d) lysosome

Answer

Ans.(d)


23. Meiosis occurs mainly in

a)two phases

b)only one phase

c) three phases

d) none

Answer

Ans.(a)


24. Cell division occurs in

a) prokaryotes

b)both a & c

c)eukaryotes

d)all

Answer

Ans.(d)


25. Cell cycle consists of

a)three phases

b)both a & c

c) two phases

d) all

Answer

Ans.(a)


26. In synthesis phases

a)all organelles are synthesized

b)both a & c

c) the content of cells doubles

d) none

Answer

Ans.(c)


27. Cell division is

a)usefull to organism

b)both a & c

c) harmfull to organism

d) all

Answer

Ans.(a)


28. Chloroplast is responsible for

a)synthesis of food

b)both a &c

c) synthesis of energy

d) none

Answer

Ans.(a)


29. Spindle fibers are produced at the time of

a)cell division

b)both a &c

c) food production

d)protein synthesis

Answer

Ans.(a)


30. Vacuoles are bigger in

a) anima cell

b)both a &c

c)plant cell

d)all

Answer

Ans.(c)


31. Cell division occurs in

a) prokaryotes

b)both a &c

c)eukaryotes

d)all

Answer

Ans.(a)


32. Semipermeable membrane is

a) cell membrane

b)both a &c

c)nuclear membrane

d)all

Answer

Ans.(a)


33. Where is the nucleus found in plant cell

a) middle of the cell

b)both a &c

c)corner of the cell

d)all

Answer

Ans.(c)


34. Crossing over occurs in

a) mitosis

b)both a &c

c)meiosis

d)all

Answer

Ans.(c)


35. Meiosis Cell division occurs in

a) five stages

b)both a &c

c)four stages

d)all

Answer

Ans.(a)


36. Both male gamete and female gamete having

a)Odd number of chromosomes

b)both a &c

c)even number of chromosomes

d)all

Answer

Ans.(a)


37. Which are the stages of Cell division same

a) metaphase of mitosis and metaphase of meiosis II

b)both a &c

c)metaphase of mitosisand anaphase of meiosis II

d)all

Answer

Ans.(a)


38. Cell theory proposed by

a) Schleiden& Schwann

b)Melvicalvin

c)Jenner

d)all

Answer

Ans.(a)


39. Prokaryotic cell having

a) linear DNA

b)circular DNA

c)no DNA

d)all

Answer

Ans.(b)


40. Who found the ribosome first in plant cell

a)Embbden

b)both a &c

c)all

d)Robinson and brown

Answer

Ans.(d)


41. Oxysomes are found in

a)Nucleus

b)plastids

c)Mitochondria

d)all

Answer

Ans.(c)


42. Which chromosomes actively take part in transcription

a)Euchromatin

b) Heterochromatin

c)both a&b

d)none

Answer

Ans.(b)


43. Name the enzyme present in the nucleus

a)Euchromatinase

b) Heterochromatinase

c)DAN & RNA polymerase

d)none

Answer

Ans.(c)


44. Which type of ribosome found in eukaryotes

a) 70S

b)both a &c

c)80S

d)50S

Answer

Ans.(c)


45. Who coined the word cytoplasm

a)strassburger

b)both a &c

c)Robert Hook

d)Strassberger

Answer

Ans.(a)


46. Name the largest plant cell

a) Acetabularia

b)both a &c

c)Parenchyma

d)all

Answer

Ans.(a)


47. The result of meiosis is

a) formation of haploid cell

b)both a &c

c)diploid

d)all

Answer

Ans.(a)


48. Meiosis II look like

a) mitosis

b)both a &c

c)protein synthesis

d)none

Answer

Ans.(a)


49. Which cell division occurs first

A) cytokinesis

b)both a &c

c)karyokinesis

d)all

Answer

Ans.(a)


50. The advantage of meiosis is

a) occurrence of variation

b)no variation occurs

c)no effect

d)all

Answer

Ans.(a)


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