13. Which sNGT a component of waxes a. ester linkage b long chain fatty acid d l

Question

13. Which sNGT a component of waxes a. ester linkage b long chain fatty acid d long chain akcohol 14. Cholesterol a. b. is synthesized by all organisms is a precursor to the hormone insulin has a polar phosphate group contains a fused-ring system is similar in structure to sphingolipids- e. 15. The fluidity of the lipid side chains in the interior of a bilayer is generally decressed by a. an increase in temperature. b. a decrease in fatty acid chain length c. an increase in the number of double bonds in fatty acid tails. d. the presence of cholesterol 16. Changes in membrane potential may cause conformational changes inopening or closing them to allow or stop the transport of solutes a. ATPases b. passive transporters c ion channels- d. ionophores 17. Floppase a. hydrolyzes ATP to prevent apoptosis. b. is an F-type ATPase. C catalyzes the translocation of phospholipids from the cytosolic leaflet to the extracellular leaflet. is a peripheral protein 18. Which of the following fatty acids has the lowest melting point? a. myristic acid [14:0) b, palmitic acid [163] c. palmitoleic acid [16:1(41 d. lauric acid [12.0] e. Iauroleic acid [12:1@ 19. What is the correct carbon notation for arachidonic acid (below)? a C-20,4 20.6 02H 20. Sucrose is composed of which two monosaccharides? a. a-D-glucose and -D-fructose b. two a-D-glucose- c. a-D-glucose and -D-glucose- -D-glucose and -D-mannose

Explanation / Answer

13) glycerol

14) contains a fused ring system

15) the presence of cholesterol

17) catalyse the translocation of phospholipid from the cytosolic leaflet to the extracellular leaflet.

20) alpha D glucose and Beta D fructose

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