Which of the following acts as a receptor site on plasma membrane?
Correct answer: D. Integrins
- A. Head of phospholipid molecules
- B. Cholesterol molecules
- C. Tail of phospholipid molecules
- D. Integrins
Explanation
Integrins are receptors present on glycoproteins in the plasma membranes of cells. They are multisubunit transmembrane proteins. They have large extracellular domains, consisting of individually structured subdomains covalently linked by flexible linkers.
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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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