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Questions and Answers
Which substance mainly composes the plant cell wall?
Which substance mainly composes the plant cell wall?
- Proteins
- Starch
- Lipids
- Cellulose (correct)
What is the phenomenon called when a living plant cell loses water through osmosis and there is shrinkage or contraction of the contents of the cell away from the cell wall?
What is the phenomenon called when a living plant cell loses water through osmosis and there is shrinkage or contraction of the contents of the cell away from the cell wall?
- Osmosis
- Photosynthesis
- Plasmolysis (correct)
- Diffusion
Why can cells of plants, fungi, and bacteria withstand very dilute (hypotonic) external media without bursting?
Why can cells of plants, fungi, and bacteria withstand very dilute (hypotonic) external media without bursting?
- They have a thick outer covering called the cytoplasm
- They have a flexible outer covering called the cell wall (correct)
- They have a protective outer covering called the nucleus
- They have a rigid outer covering called the plasma membrane
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