Cell Structure & Functions

Cell structure and function Worksheet-1

Plasma membrane is the outermost covering of the cell that separates the contents of the cell from its external environment. The plasma membrane allows or permits the entry and exit of some materials in and out of the cell. It also prevents movement of some other materials. The cell membrane, therefore, is called a selectively permeable membrane.

1. Which is the outermost covering of the cell?

A. Cell wall                                     B. Middle layer

C. Cell membrane                        D. All of these

E. None of these

Cell structure and function Worksheet-2

Fill in the blanks:

1. Robert Hooke coined the term _____.

2. ­­­­_____ is the smallest cell organelle.

3. ______ is the cell organelle which generates energy rich compound called ATP.

4. Nucleus was first discovered by ______.

5. _____ is known as the smallest bacteria.

6. _____ is present around the nucleus, which is limited by plasma membrane.

Cell structure and function Worksheet-3

1. Cell can be divided into-

A. Cell membrane                        B. Cell wall

C. Nucleus                                      D. Protoplasm

E. Cytoplasm

2. Protoplasm comprises of-

A. Water                                         B. Vitamins