EXERCISES
A. Answer in Detail
1. Draw a neat diagram of a cell showing the three basic parts.
3. Cells are the basic structural units of organisms. Explain.
2. Make a sketch of the human nerve cell. Why are nerve cells long?
4. Draw well-labelled diagrams of plant and animal cells, showing the organell
5. Differentiate between the following:
(b) Plant cell and animal
(d) Cell membrane and n
(f) Cytoplasm and nucle
(a) Cytoplasm and protoplasm
(c) Tissue and organ
(e) Prokaryotes and eukaryotes
6. Write short notes on each of the following:
(a) Protoplasm
(b) Cytoplasm
(d) Organelles
7. Mention the functions of each of the following:
(b) Cytoplasm
(c) Nucleus
(e) Variations in shapes and sizes of cells
(c) Nucleus
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