Quiz Chapter 7 - 3 Which compound has the greatest...

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Lecture 5. Chapter 7. Membrane Structure and Function 1. Membranes are fluid because of all of the following EXCEPT ______. a) unsaturated fatty acids b) lateral movement of phospholipids in the bilayer c) saturated fatty acids d) temperature 2. The fluid mosaic model of membranes is called a “mosaic” because of ______. a) the mixture of saturated and unsaturated fatty acids b) the mixture of cholesterol with fatty acids. c) the bilayer aspect of the membrane d) the collage of membrane proteins associated with the bilayer e) the complexity of the extracellular matrix attached to the membrane
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Unformatted text preview: 3. Which compound has the greatest difficulty passing a cell membrane (without a transport system)? a) alcohol b) water c) ions such as amino acids d) apolar solvents e) benzine 4. Movement of a material across a membrane, through a transport protein, with ATP providing the energy is called __________. a) diffusion b) osmosis c) passive transport d) active transport e) osmoregulation 5. Transport of water into a cell can occur by all of the following methods, EXCEPT ________. a) osmosis b) aquaporins (active transport) c) passive transport d) pinocytosis e) phagocytosis...
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