Grade 5 | Science Notes - Cell | Unit-2

a. Cell is the basic unit of life. 

a. Cells carry out vital life processes. 'T'
b. Most of the cells are large in nature. 'F'
c. The cytoplasm is only found in animal cell. 'F'
d. Vacuole is large in plant cells. 'T'
e. The cell is the basic unit of life. 'T'
f. The cell wall is found only in plant cells. 'T'
g. An ostrich egg is the biggest cell. 'T'

3. Choose the best alternative.

a. Cells are the basic unit of life. (Basic/Optional)
b. Cell wall is the outer covering in a plant cell. (Cell membrane/Cell wall)
c. Different cell organelles float in cytoplasm. (Cytoplasm/Vacuole)
d. Cytoplasm is the jelly-like fluid present in the cell. (Cytoplasm/Nucleus)
e. Vacuole stores water and mineral substances in them. (Vacuole/Nucleus)
f. Nucleus controls the major activities in the cell. (Cell membrane/Nucleus)

4. Match the following.

5. Give reasons.

a. The cell is the basic unit of life.
Answer: The cell basic unit of life because it performs all the vital activities of the body.

b. An animal cell cannot perform photosynthesis.
Answer: An animal cell cannot perform photosynthesis because it does not have a chloroplast that contains chlorophyll.

6. Answer the following questions.

a. What is a cell? Why is it called the basic unit of life?
Answer: Cell is the basic, structural and functional unit of life. Cell is called the basic unit of life because it performs all the vital activities of the body.

b. What is a cell wall? Where is it found?
Answer: The outermost covering of a plant cell is called cell wall. It is found in plant cell.

c. What is the cytoplasm? What are the things found on the cytoplasm?
Answer: Cytoplasm is a thick fluid-like substance which is enclosed inside the cell membrane. The things found on the cytoplasm are Vacuole, Golgi bodies, mitochondrion, Nucleus, Ribosomes, etc.

d. Where is the nucleus found in the cell? Why is it so important?
Answer: The nucleus is found at centre in animal cell and at one side in plant cell. It is so important because it controls all the activities of the cell.

e. Write two differences between plant and animal cells.
Answer: The two differences between plant and animal cells are-

Plant Cell	Animal Cell
1. Cell wall is present.	1. Cell wall is absent.
2. Nucleus is found at one side.	2. Nucleus is found at the centre.
3. It has a large Vacuole.	3. It has many small Vacuoles.
4. It consists of chloroplasts.	4. It does not consist of chloroplasts.
5. It is rectangular or square in shape.	5. It is oval or rounded in shape.

7. Draw labelled diagram of a plant cell and an animal cell.