Signalling With Lipids

Question 1

What does autocrine mean?

Answer 1

Signal works on cell it came from

Question 2

What does endocrine mean?

Answer 2

Faraway signalling

Question 3

Do hormones make far away signals or close by signals?

Answer 3

Faraway

Question 4

What does paracrine mean?

Answer 4

Closeby signalling

Question 5

What are glycerophospholipids precursors for?

Answer 5

the PIPs

Question 6

What are ceramide rafts?

Answer 6

Act as platforms to localize signalling

Question 7

What does blood type A contain on it’s H antigen that O does not have?

Answer 7

N-acetylglucosamine

Question 8

What are the structure of sugars on the head groups of glycosphingolipids determined by?

Answer 8

Glycotransferases

Question 9

What do prostagladins do?

Answer 9

Smooth muscle contraction

Question 10

What do Thromboxanes do?

Answer 10

Form clots

Question 11

What do NSAIDs do?

Answer 11

Anti inflammatories

Question 12

What do leukotrienes do?

Answer 12

Induces airway contraction

Question 13

What is the precursor for vit D?

Answer 13

7-dehydrocholesterol

Question 14

What is the active form of Vit D?

Answer 14

Calcitrol

Question 15

What are prenol lipids?

Answer 15

Hormones and pigments (ie B carotene, tocopherols)

Question 16

What is all cis retinol also called?

Answer 16

Rhodopsin

Question 17

What does tretonoin do?

Answer 17

normalizes cell cycle, reduces NO expression, binds to RARs and RXR

Question 18

What is all transretinoic acid?

Answer 18

Ligand for nuclear receptor

Question 19

Rhodopsin is trans or cis when light sensed?

Answer 19

Trans