Which of the following is NOT a basic unit of the cell?
Correct answer: A. Cell wall
- A. Cell wall
- B. Cell membrane
- C. Nucleus
- D. Ribosome
Explanation
The cell wall provides extra strength to the cell, but it is not absolutely necessary. Also, it is not present in all the cells, e.g. it is not present in animal cells.
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About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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