Class 8 Cell Structure And Functions CBSE Questions & Answers

Class 8 · Cell Structure And Functions

This is Science Class 8 Cell Structure and Functions CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
If cell membrane:: skin then Nucleus:: ?
  • A
    liver
  • B
    brain
    Correct
  • C
    lungs
  • D
    heart
2
The structure that is/are porous?
  • A
    both nuclear membrane & plasma membrane
    Correct
  • B
    nuclear membrane
  • C
    plasma membrane
  • D
    cell wall
3
In a human being life starts with :
  • A
    gamete formation
  • B
    unfertilised egg
  • C
    puberty
  • D
    fertilised egg
    Correct
4
Read the following statements :i) All cells are similar in their basic structure.ii) All cells are identical in their function.
  • A
    statement i) is correct but ii) is wrong
    Correct
  • B
    statement ii) is correct but i) is wrong
  • C
    both are wrong
  • D
    both are correct
5
Scientists use dyes to study :
  • A
    effect of toxins on cell
  • B
    communications between cells
  • C
    functions of the cell
  • D
    detailed structure of cell
    Correct
6
Amit observed various types of cells. He reported largest vacuoles in a :
  • A
    prokaryotic cell
  • B
    virus
  • C
    animal cell
  • D
    plant cell
    Correct
7
Read the following statements :i) Size of cells is related to size of the animal body.ii) Size of cell is related to the function of that cell.
  • A
    both are wrong
  • B
    statement i) is correct but ii) is wrong
    Correct
  • C
    both are correct
  • D
    statement ii) is correct but i) is wrong
8
Shreya tried to observe sections of cells under microscope but transparent sections were not visible so she viewed after :
  • A
    treating with alcohol
  • B
    putting glycerine
  • C
    staining
    Correct
  • D
    washing
9
Read the following statements :i) Genes are located on ribosomes.ii) Genes transfer characters from one generation to the next.
  • A
    statement i) is correct but ii) is wrong
  • B
    both are wrong
  • C
    both are correct
  • D
    statement ii) is correct but i) is wrong
    Correct
10
In a large animal like elephant life begins with :
  • A
    single cell
    Correct
  • B
    two cells
  • C
    group of undifferentiated cells
  • D
    organ
11
Match the following :i) Plasma membrane……a) highly rigid ii) Nucleus………………..b) prokaryotic celliii) Capsule……………….c) semi permeableiv) Nucleoid………………d) freely permeablev) Cell wall……………….e) contains genetic materaial
  • A
    i.c,ii.e,iii.a, iv.b, v.d
    Correct
  • B
    i.d,ii.a,iii.b, iv.e, v.c
  • C
    i.e,ii.c,iii.d, iv.a, v.b
  • D
    i.b,ii.d,iii.e, iv.c, v.a
12
For a particular species, the _____ of chromosomes is fixed :
  • A
    structure
  • B
    location
  • C
    division pattern
  • D
    number
    Correct
13
The correct sequence of layers from outside of inside the bacterial cell:
  • A
    plasma membrane \(\to\) capsule \(\to\) cell wall
  • B
    cell wall \(\to\) capsule \(\to\) plasma membrane
  • C
    capsule \(\to\) cell wall \(\to\) plasma membrane
    Correct
  • D
    cell wall \(\to\) plasma membrane \(\to\) capsule
14
Lining of nose have hair like projections called _____ and their movement keeps dust and germs away:
  • A
    tentacles
  • B
    flagella
  • C
    pseudopodia
  • D
    cilia
    Correct
15
Match the following :i) Cell………………….a) Hydraii) Unicellular…………b) HIViii) Multicellular……….c) Parameciumiv) Acellular…………..d) Bacteriav) Prokaryote…………e) Building blocks
  • A
    i.d,ii.a,iii.b, iv.e, v.c
  • B
    i.c,ii.e,iii.d, iv.a, v.b
  • C
    i.b,ii.d,iii.e, iv.c, v.a
  • D
    i.e,ii.d,iii.a, iv.b, v.d
    Correct