DPP – 9S53

CELL : The fundamental unit of life

1. Describe the structure of the nucleus with the help of a diagram.

2. Explain the process of endocytosis (with diagram).

3. Which of the following is not correct?

(a) Robert Brown discovered the cell.

(b) Schleiden and Schwann formulated the cell theory.

(c)Virchow explained that cells are formed from pre-existing cells.

(d) A unicellular organism carries out its life activities within a single cell.

4. What are nuclear pores? State their function.