Question 2Who discovered cell?
Robert Hooke was the first person to discovery cell using a simple microscope.
Question 3Mention the function of the following.
Question 4Why are following important to a plant cell.
(a) Cell wall
It gives rigidity to plant cells.
Bacterial cell also has a cell wall.
Chloroplasts are the "site" of photosynthesis in leaves. It has a green colored pigment chlorophyll,
Pigments give fruits and vegetables an orange or red color.
Plastids also store photosynthetic products and starch.
Foods full of starch contain many plastids. Potatoes, for example, have many plastids in their cells.
- Plastids are organelles that exist only in plant cells.
Question 5What advantage does Amoeba derive by changing shape?
The change in shape is due to formation of pseudopodia which facilitates movement and help in capturing food.