Amoeba keeps changing its shape. Is there any advantage of doing so by it?

2

(a)

Is there anything common among a bacteria and an elephant? If yes, what is it?

2

(a)

Certain kind of cells do not have a cell wall around them. What are they called as?

2

(a)

Have you heard of a cell that behaves like a complete organism? Give its name

2

(a)

What are the functions of cell wall in plant cells?

2

(a)

Tomatoes are red in colour, what causes the red colour in them?

2

(a)

Scientists observe and study the living cells. How is it done?

2

(a)

Study the following structure.

Which of the organisms have been classified wrongly?

2

(a)

Pseudopodia in Amoeba are every important for its functioning. What functions do they perform?

2

(a)

Paheli read somewhere that hen's egg is a single cell. She is wondering how can it be seen easily.

2

(a)

How does an organism begins its life?

2

(a)

Describe the structure of hen's egg

2

(a)

What is plasma membrane? What are its characteristics?

2

(a)

Draw a diagram of Onion peel and label
(i) Cell membrane
(ii) Nucleus and
(iii) Cytoplasm on it.

2

(a)

Draw a diagram of
(i) Amoeba
(ii) Paramecium. Name the locomotory organs in both of them.

2

(a)