BIOS-256 Week 2 Quiz # 2
1. Question. What are the nonpolar parts of phospholipids? (Points : 3)
2. Question. The polar portion of a cholesterol molecule, which forms hydrogen bonds with the polar heads of neighboring
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BIOS-256 Week 2 Quiz # 2
1. Question. What are the nonpolar parts of phospholipids? (Points : 3)
2. Question. The polar portion of a cholesterol molecule, which forms hydrogen bonds with the polar heads of neighboring phospholipids and glycolipids, consists of a (Points : 3)
3. Question. This type of membrane protein anchors cells to neighboring cells and to protein filaments found outside or inside the cell. (Points : 3)
4. Question. Which of the following does NOT influence the rate of diffusion of a chemical across a plasma membrane? (Points : 3)
5. Question. If the solute concentration is greater inside of the cell than outside the cell, water will move by osmosis (Points : 3)
6. Question. Which of the following transport process uses vesicles formed at the plasma membrane to take up extracellular substances and import them into the cell? (Points : 3)
7. Question. During phagocytosis, binding of a particle to a plasma membrane receptor triggers formation of _____, which are extensions of the plasma membrane of the phagocyte that eventually surround the particle forming a phagosome. (Points : 3)
8. Question. This cellular organelle is comprised of a pair of centrioles and the surrounding pericentriolar material. (Points : 3)
9. Question. Which of the following membrane-enclosed organelles contains several oxidases that are involved in oxidation of fatty acids and amino acids during normal metabolism and in detoxification of chemicals like alcohol in the liver? (Points : 3)
10. Question. Which of the following membrane-enclosed organelles can engulf a worn-out organelle, digest its chemical components, and recycle those digested components? (Points : 3)
11. Question. Briefly describe the fluid mosaic model. (Points : 5)
12. Question. Briefly describe how proteins move through the Golgi complex. (Points : 5)
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