Answer these questions for me. (biochem)

[ManBearPig]

14. (0.5) FA from Medium chain TG makes it to the blood ?more quickly? or ?less quickly? than FA from Long chain TG. (Circle one)


15. (0.5) An adipose tissue lipase will be ?more? or ?less active? when insulin is present. (Circle one)


16. (0.5) Synthesis of TG in the liver ?increases? or ?decreases? after a meal (Circle one)

 

[sandorski]

I'd answer "Yes" on all 3

 

[ManBearPig]

not an option 🙁

 

[JTalbain]

Originally posted by: Kazaam
14. (0.5) FA from Medium chain TG makes it to the blood ?more quickly? or ?less quickly? than FA from Long chain TG. (Circle one)


15. (0.5) An adipose tissue lipase will be ?more? or ?less active? when insulin is present. (Circle one)


16. (0.5) Synthesis of TG in the liver ?increases? or ?decreases? after a meal (Circle one)

well here goes.

14 - more quickly. TG's get broken up by 2 C units, so the medium chain one gets broken down more quickly than the long chain TG and makes it into the blood more quickly

15 - less active. in the presence of insulin, body wants to store nutrients rather than use them up, since the blood glucose levels are adequate already. thus there's no reason to break up the fats in adipose tissue, so lipase (enzyme essential for breaking up the fats) will be less active.

16 - increases. following a meal, the nutrients from digestion either get used up or stored. the excess nutrients get store as TG's, so synthesis rate would increase.

 

[guyver01]

Originally posted by: Kazaam
i had the answers but cant find my review sheet

suuuure ya did.

slacker.

do yer own homework.

 

[Gibsons]

Originally posted by: JTalbain

Originally posted by: Kazaam
14. (0.5) FA from Medium chain TG makes it to the blood ?more quickly? or ?less quickly? than FA from Long chain TG. (Circle one)


15. (0.5) An adipose tissue lipase will be ?more? or ?less active? when insulin is present. (Circle one)


16. (0.5) Synthesis of TG in the liver ?increases? or ?decreases? after a meal (Circle one)

well here goes.

14 - more quickly. TG's get broken up by 2 C units, so the medium chain one gets broken down more quickly than the long chain TG and makes it into the blood more quickly

15 - less active. in the presence of insulin, body wants to store nutrients rather than use them up, since the blood glucose levels are adequate already. thus there's no reason to break up the fats in adipose tissue, so lipase (enzyme essential for breaking up the fats) will be less active.

16 - increases. following a meal, the nutrients from digestion either get used up or stored. the excess nutrients get store as TG's, so synthesis rate would increase.

I think those are all correct, but 14 might be talking about absorption from the GI tract. In which case the answer is still more quickly, but the reason is different.