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Class 9 Science - The Fundamental Unit of Life

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

The basic structural and functional unit of life is:

a)

Tissue

b)

Organ

c)

Cell

d)

Organism

2.

The term “cell” was first coined by:

a)

Robert Brown

b)

Robert Hooke

c)

Schleiden

d)

Schwann

3.

Nucleus was discovered by:

a)

Robert Hooke

b)

Robert Brown

c)

Watson

d)

Crick

4.

Cell theory was proposed by:

a)

Hooke & Brown

b)

Schleiden & Schwann

c)

Watson & Crick

d)

Virchow

5.

“Omnis cellula e cellula” (all cells arise from pre-existing cells) was given by:

a)

Schleiden

b)

Schwann

c)

Virchow

d)

Brown

6.

The jelly-like substance inside cell is:

a)

Cytoplasm

b)

Protoplasm

c)

Nucleus

d)

Plastid

7.

Powerhouse of the cell is:

a)

Chloroplast

b)

Ribosome

c)

Mitochondria

d)

Golgi body

8.

Green pigment in chloroplast is:

a)

Carotene

b)

Chlorophyll

c)

Xanthophyll

d)

Anthocyanin

9.

Cell wall is present in:

a)

Animal cell only

b)

Plant cell only

c)

Both plant & animal

d)

Bacteria only

10.

Which controls all activities of cell?

a)

Cytoplasm

b)

Mitochondria

c)

Nucleus

d)

Ribosome

11.

Protein synthesis occurs in:

a)

Golgi bodies

b)

Lysosomes

c)

Ribosomes

d)

Vacuoles

12.

Packaging and secretion is the function of:

a)

Endoplasmic reticulum

b)

Mitochondria

c)

Golgi apparatus

d)

Nucleus

13.

Cell organelles with their own DNA and ribosomes are:

a)

Nucleus & Mitochondria

b)

Mitochondria & Chloroplast

c)

Ribosome & ER

d)

Lysosome & Golgi

14.

The “suicidal bags” of the cell are:

a)

Vacuoles

b)

Lysosomes

c)

Mitochondria

d)

Plastids

15.

The living content of cell surrounded by plasma membrane is called:

a)

Cytoplasm

b)

Protoplasm

c)

Cell wall

d)

Vacuole

16.

The plasma membrane is made up of:

a)

Protein only

b)

Lipid only

c)

Protein & lipid

d)

Cellulose

17.

Which process allows movement of water through plasma membrane?

a)

Diffusion

b)

Osmosis

c)

Active transport

d)

Endocytosis

18.

Shrinkage of cell due to water loss in hypertonic solution is:

a)

Turgidity

b)

Plasmolysis

c)

Endocytosis

d)

Diffusion

19.

Engulfing of food particle by cell is:

a)

Exocytosis

b)

Pinocytosis

c)

Phagocytosis

d)

Osmosis

20.

The largest cell in human body is:

a)

Muscle cell

b)

Nerve cell

c)

Ovum

d)

RBC

21.

The longest cell in human body is:

a)

Nerve cell

b)

Muscle cell

c)

Ovum

d)

WBC

22.

RBCs are red because of:

a)

Hemoglobin

b)

Chlorophyll

c)

Protein

d)

Iron oxide

23.

Which cell organelle detoxifies harmful chemicals in liver cells?

a)

Mitochondria

b)

Smooth ER

c)

Lysosomes

d)

Ribosomes

24.

Storage sacs in plant cells are:

a)

Nucleus

b)

Vacuoles

c)

Plastids

d)

Ribosomes

25.

Cell wall of plant cell is mainly made up of:

a)

Lipids

b)

Protein

c)

Cellulose

d)

Hemoglobin

26.

Which is known as the “kitchen of the cell”?

a)

Mitochondria

b)

Chloroplast

c)

Ribosomes

d)

Golgi bodies

27.

Genetic material of cell is:

a)

RNA

b)

DNA

c)

Protein

d)

ATP

28.

The process of intake of material by plasma membrane is:

a)

Endocytosis

b)

Exocytosis

c)

Diffusion

d)

Osmosis

29.

Plant cells generally have a large:

a)

Nucleus

b)

Lysosome

c)

Central vacuole

d)

Ribosome

30.

Chromosomes are made up of:

a)

RNA & protein

b)

DNA & protein

c)

Lipid & protein

d)

Only DNA

31.

The cell organelle absent in animal cell is:

a)

Nucleus

b)

Mitochondria

c)

Plastid

d)

Ribosome

32.

Which organelle is called “cell’s transport system”?

a)

Ribosomes

b)

Endoplasmic Reticulum

c)

Golgi body

d)

Nucleus

33.

The “control center” of the cell is:

a)

Cytoplasm

b)

Nucleus

c)

Ribosomes

d)

Cell wall

34.

Which organelle produces energy in form of ATP?

a)

Ribosome

b)

Mitochondria

c)

Vacuole

d)

Chloroplast

35.

RBCs lack:

a)

Mitochondria

b)

Ribosomes

c)

Nucleus

d)

Golgi apparatus

36.

The structural difference between plant and animal cells is:

a)

Plant cell has cell wall

b)

Animal cell has chloroplast

c)

Both have vacuole of same size

d)

None

37.

Fluid mosaic model is related to:

a)

Nucleus

b)

Plasma membrane

c)

Mitochondria

d)

Ribosomes

38.

In hypotonic solution, plant cell becomes:

a)

Plasmolysed

b)

Turgid

c)

Flaccid

d)

Shrunken

39.

Ribosomes are also called:

a)

Protein factory

b)

Powerhouse

c)

Suicidal bags

d)

Control center

40.

Which organelle helps in cell division in animal cells?

a)

Centriole

b)

Ribosome

c)

Vacuole

d)

Nucleus

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