The intake of liquid material across the cell membrane is:
Correct answer: B. Pinocytosis
- A. Phagocytosis
- B. Pinocytosis
- C. Endocytosis
- D. Exocytosis
Explanation
The correct answer is Pinocytosis. This process is specifically designed for the intake of extracellular fluid and dissolved solutes into the cell, forming small vesicles. Unlike Phagocytosis, which targets solid particles, pinocytosis focuses on liquids. Endocytosis is a general term for internalizing substances but does not specify the type of material, making it less precise in this context. Exocytosis involves expelling materials out of the cell, which is the opposite of what the question asks about.
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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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