Microvilli are also called:
Correct answer: D. Brush border
- A. Leaf veins
- B. Cristae
- C. Capillaries
- D. Brush border
Explanation
Microvilli are small, finger-like projections on the surface of epithelial cells, especially in the small intestine, where they are known as the 'brush border'. This term comes from the appearance of microvilli under a microscope. The brush border increases the surface area for absorption. The other options are incorrect: 'Cristae' are related to mitochondria, 'Capillaries' are blood vessels, and 'Leaf veins' and 'Leaf midribs' are plant structures.
This question appeared on the ETEA MDCAT 2013 paper, which you can sit online with every answer explained.
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Cytoplasmic organelles are the specialized structures suspended in cytoplasm, including mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, vacuoles and centrosomes. Questions compare their structures and functions in animal and plant cells, including chloroplasts and the role of the endomembrane system in transport and secretion.
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