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Questions and Answers
What is the function of the cell surface membrane?
What does the cytoplasm contain?
Organelles, enzymes, salts, and food reserves such as lipids
Ribosomes are membrane-bound structures.
False
The _____ controls cell activities, cell division, and cell development.
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Which of the following statements is true regarding mitochondria?
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What is the composition of the cell wall in plants?
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Vacuoles provide _____ to plant cells.
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What is the role of the cell wall in bacteria?
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Study Notes
Cell Structure and Function
- Staining helps to visualise cells under a microscope by making specific organelles more visible.
- Methylene blue is used to stain animal cells, while iodine solution is used to stain plant cells.
- The cell surface membrane is a partially permeable layer that surrounds the cytoplasm and controls the movement of substances into and out of the cell.
- The cytoplasm is a jelly-like substance containing organelles and food granules. It is the site of most chemical reactions in the cell.
- The nucleus is a double membrane-bound structure present in the cytoplasm that controls cell activities, cell division, and cell development.
- Mitochondria are small, spherical or rod-shaped structures that are the site of cellular respiration.
- Ribosomes are small, circular structures that are responsible for protein synthesis.
- The cell wall is a fully permeable, rigid, non-living layer made of cellulose in plants. It provides rigidity and structure to the cell, protecting it from bursting.
- Vacuoles are large, permanent membrane-bound structures found in plant cells. They provide turgidity and contain water, salts, and sugar.
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Description
Test your knowledge on the fundamental components of cells, including organelles and their functions. This quiz covers the differences between plant and animal cells, along with key cellular processes. Perfect for biology students looking to enhance their understanding of cell biology.
