Cell- Structure and Function

6. contains the green coloured pigments that give colour to the leaves.
8. rod-like structures that oxidise food also known as a powerhouse of the cell.
9. Cells that lack a well –defined nucleus surrounded by a nuclear membrane.
12. allows water, minerals and some other essential substances to pass through it.
15. the nucleus and the cytoplasm together.
16. organisms having more than one cell.
17. organelles that make proteins in the cell.
19. group of organs joining together to form an -----------.
20. sac-like structures that store food, water and wastes.
21. the cells formed by cell division.
22. A jelly-like substance that makes up most of the inside of the cell.
23. thread-like structures in the nucleus which carry genes that contain information needed to function and reproduce.

1. absents in animal cells but gives support and protection for the plant cell.
2. green coloured plastids.
3. helps transport substances within the cell.
4. secretes substances such as enzymes.
5. Cells that have a well defined nucleus.
6. small projections on the outer surface of unicellular organisms which help in the movement of the cells.
7. small structures present in the cytoplasm.
10. the process by which new cells are formed.
11. help destroy old cell structures.
12. regulates cell division.
13. the liquid in the nucleus.
14. a small spherical body floating in the centre of the cytoplasm.
18. the kitchen of the cell.