CELL: FUNDAMENTAL UNIT OF LIFE
(Worksheet)
Fill in the blanks with suitable words.
1. The fundamental organizational unit of life is the _______.
2. Cells are enclosed by a plasma membrane composed of ________ and _______.
3. Plasma membrane is a __________ permeable membrane.
4. In plant cells, a cell wall composed of _________ is located outside the cell membrane.
5. In prokaryotes, the nuclear membrane is ________.
6. The ____________________ functions both as passageway for intra cellular transport and as manufacturing surface.
7. ________ are membrane-bound sacs filled with digestive enzymes.
8. The ______________ consists of stacks of membranes bound vesicles that function in the storage and packaging.
9. __________ are also known as the powerhouse of the cell.
10. Two types of plastids are present in cell; ____________ (colourful) and ___________ (transparent).
11. ______ are the storage sacs for solids or liquid contents.
12. All cells arise from _________ cells.
13. Gametes of reproductive organs are formed by cell division called _________.
14. _______ plays a crucial role in detoxifying many poisons and drugs.
15. Process of building and repairing cell membrane is called ________ __________.
Answers:
1: cell
2: lipids, proteins
3: selectively
4: cellulose
5: absent
6: endoplasmic reticulum
7: Lysosomes
8: Golgi apparatus
9: Mitochondria
10: chromoplastids, leucoplastids
11: Vacuoles
12: pre-existing
13: meiosis
14: SER
15: membrane biogenesis.
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