Which organelle does the tonoplast surround?
Correct answer: D. Vacuoles
- A. Golgi apparatus
- B. Nucleus
- C. Endoplasmic reticulum
- D. Vacuoles
Explanation
The correct answer is that the tonoplast surrounds vacuoles in plant cells. The tonoplast is a selectively permeable membrane that regulates the passage of ions and molecules into and out of the vacuole, contributing to the maintenance of osmotic balance and turgor pressure. The other options are incorrect because they describe different cellular structures: the Golgi apparatus processes and packages proteins and lipids, the nucleus contains genetic material and is surrounded by the nuclear envelope, and the endoplasmic reticulum is involved in synthesis and transport within the cell.
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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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