Kaplan Biochemistry: Chapter 5 Lipid Structure and Function

Question 1

Fa synthesis occurs in the ___

Answer 1

cytoplasm

Question 2

FA oxidations occurs in the ____

Answer 2

mitochondria.

Question 3

what would happen if you inhibited acetylcoA dehydrogenase

Answer 3

acetylcoA dehydrogenase catalyzes the first step of oxidation where the fatty acyl coA group gets oxidized to form a trans double bond at the 2-3 carbon. inhibiting this enzyme would prevent beta oxidation. there would be no breakdown of Fas, therefore, less acetyl coA, less ATP from krebs.

Question 4

T/F Terpenes are the metabolic precursors to prostaglandins

Answer 4

false.prostaglandins are fatty acid/lipid derivatives but not from terpenes.

Question 5

terpenes are made of ___ moieties and are precursors to:

Answer 5

terpenes are made of ISOPRENE moieties and are precursors to STEROIDS.

Question 6

a prostaglandin is a ____ derivative

Answer 6

STEROID. therefore, it goes terpene –> steroids –> prostaglandin

Question 7

cerebrosides, glboosides, gangliosides are all considered to be

Answer 7

glycolipids globosides are 2 or more sugars attatched to a lipid.

Question 8

outline the makeup of a sphingolipid

Answer 8

a sphingolipid contains a sphingosine/oid backbone, a polar head, and 2 fatty acid tails.

Question 9

outline the make up of a glycerophospholipid

Answer 9

a glycerophospholipid contains a glycerol backbone, a polar head and 2 fatty acid tails.

Question 10

name

Answer 10

vitamin A

Question 11

name

Answer 11

vitamin D

• vit D is the one that looks most like a steroid.

Question 12

Name

Answer 12

vitamin E