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Science Cell & its functions

Total questions: 20

Worksheet time: 8mins

Name
Class
Date
1.

Who discovered cell for the first time by observing cork?

a)

Alexander Flaming

b)

Robert Hook

c)

Leeuwenhoek

d)

Charles Darwin

2.

Which of the following cells have an irregular shape?

a)

White blood cells

b)

Amoeba

c)

Both (a) and (b)

d)

None of these

3.

The structural and functional unit of life is called

a)

tissue

b)

cell

c)

organ

d)

organism

4.

The largest cell is

a)

(a) Bacteria

b)

(b) Human neuron

c)

(c) egg of an ostrich

d)

(d) egg of blue whale

5.

A cell with a definite nucleus and nuclear membrane are called as

a)

virus

b)

Plant cell

c)

Prokaryotic

d)

Eukaryotic

6.

The cell wall is made up of a substance called

a)

Lignin

b)

Starch

c)

Chitin

d)

Cellulose

7.

Chlorophyll is present in:

a)

Chloroplast

b)

Leucoplast

c)

Chromoplast

d)

None

8.

Colorless plastids in plants are

a)

Chloroplast

b)

chromoplast

c)

Leucoplast

d)

None of these

9.

Which of these is also called plasma membrane?

a)

Cell-membrane

b)

Nucleus-membrane

c)

Cytoplasm-membrane

d)

Vacuole-membrane

10.

Which organlleies called the “powerhouse of the cell”?

a)

Nucleus

b)

Endoplasmic reticulum

c)

Mitochondrion

d)

Golgi apparatus

11.

Which of the following instruments can be used to observe cells?

a)

Barometer

b)

Microscope

c)

Periscope

d)

Telescope

12.

Which among the following is not the function of lysosomes?

a)

Breaking down of food particles.

b)

Protection against the pathogens.

c)

Perform photosynthesis.

d)

Digest worn-out cells.

13.

___________ is a of unit inheritance in living organisms

a)

Gene

b)

Nucleus

c)

Chromosomes

d)

Nucleolus

14.

____________ is called the living substance of the cell

a)

Nucleolus

b)

Protoplasm

c)

Organelles

d)

Cytoplasm

15.

Coloured bodies are called as ______________ are found in the plant cells only

a)

Plastids

b)

Chlorophyll

c)

Chloroplast

d)

Organelles

16.

True or false: Plant cells have huge central vacuole unlike a number of small vacuoles in an animal cells.

a)

True

b)

False

17.

True or False: Cells exhibit a variety of shapes and sizes

a)

True

b)

False

18.

True or False: Bacteria cell has a cell wall

a)

True

b)

False

19.

True or False: Paramecium is a multicellular organism

a)

True

b)

False

20.

True or False: The size of the cell has no relation with the size of the body of the animal or plant

a)

True

b)

False