4. The bonds between the carbon atoms in unsaturated fatty acids of phospholipids helps to fluidity of membranes. A) single; increase B) single; decrease C) double; increase D) double; decrease E) triple; buffer 5. Phospholipids are amphipathic which means that they A) contain no hydrogens B) contain hydrophobic and hydrophilic parts. C) are hydrophilic only. D) are hydrophobic only. E) contain no carbon.

4. The bonds between the carbon atoms in unsaturated fatty acids of phospholipids helps to fluidity of membranes. A) single; increase B) single; decrease C) double; increase D) double; decrease E) triple; buffer 5. Phospholipids are amphipathic which means that they A) contain no hydrogens B) contain hydrophobic and hydrophilic parts. C) are hydrophilic only. D) are hydrophobic only. E) contain no carbon.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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1. Which one of the following is NOT an important functional group or linkage in biomolecules? A) Phosphodiester B) Hemiketal C) Thiol D) Lipid E) Phosphoanhydride
3. You have a protein that is easily extracted from a cell membrane preparation, without any associated lipids, by washing with a buffer containing a salt (e.g. 2M NaBr) without the need to treat the membrane with detergents. What type of protein do you have? E) Peripheral (extrinsic) F) A protein covalently anchored to membrane fatty acids G) Transmembrane H) None of the above Answer: Explanation: 4. A bacterium is suddenly expelled from a warm human intestine into the cold world outside (hey, it's been a cold December!). Which of the following adjustments might the bacterium make to maintain the same level of membrane fluidity? I) Produce lipids with hydrocarbon tails that are longer and have fewer double bonds Produce lipids with hydrocarbon tails that are shorter and have more double bonds K) Decrease the amount of cholesterol in the membrane L)Decrease the amount of glycolipids in the membrane Answer: Explanation: 5. Which of the following membrane lipids does not contain fatty…
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