Prep for USMLEPrep for USMLE Forum
   Forum    Step 1  Step 2 CK Step 2 CS Step 3  Match  IMGs Resources Search






Previous Topic | Next Topic  good question 




 
Kaplan Qbank USMLE



Author16 Posts
  #1

in well fed states which is main source of enery for liver?
aminoacid
fatty acid
glucose
ketone


___________________
parda kajj layin sayian saadi changi mandi da

  #2

oops energy for liver?


___________________
parda kajj layin sayian saadi changi mandi da

  #3

sorry no body ans i thought it was basic question and one may get confuse. sorry for such silly question bye

___________________
parda kajj layin sayian saadi changi mandi da

  #4

give a ppl break to answer !

Kaplan : most energy of liver after a meal is from EXCESS AMINOACIDS !!!


___________________
The more I know, the more I don't know!

  #5

yes its aminoacid in well fed state and fatty acid in fasting

___________________
parda kajj layin sayian saadi changi mandi da

  #6

glucose,as mentioned in lippincott:after a meal containing carbohydrate the liver becomes a net consumer of glucose,retaining roughly 60 of every 100g of glucose presented by the portal system.
and you talked about amino acid so: the excess amino acid: they will be either relesased into the blood for other tissues to synthesize protiens OR they may be deaminated to give rise to the carbon skeletons to enter TCA cycle.
AS for fasting fatty acids are the main source for energy.

It's a very important question to be asked

  #7

hi u mean ans is glucose i dont know but i have to search for your explaination. it means kaplans is wrong at this point

___________________
parda kajj layin sayian saadi changi mandi da

  #8

I thought glucose burned for immediate fuel use, rest stored as glycogen? AA's for gluconeogenesis, but past fed state, right?

  #9

guys, kaplan says...well fed state its glucose and amino acids and fattyacids in fasting state

  #10

AA's for gluconeogenesis, but past fed state, right? [/quote]
this is what happens in other tissues in fasting state...gluconeogenesis takes over...


  #11

Yep, for fasting state, thanks, Hope smiling face

  #12

guys pl explain.....
fasting it is fa, and fed state aa or glucose?

  #13

amino acid...the graph in kaplan biochem. is excellent for understanding this concept

___________________
Every disaster hides an opportunity.

  #14

in a well fed state every tissue uses glucose. dude no point to break down proteins and make yourself skinny as hell after you eat a meal.

___________________
There are many things in this world that can’t be changed no matter how hard you try. That’s why you must not hesitate when the time comes where you have to give it all you’ve got.

  #15

well as kaplan says in well fed state liver get most of its energy from oxidation of excess amino acids

___________________
R U going to ?

  #16

well in well fed atate it has to be glucose..proteins and fatz are utilized in fasting states

___________________
i m not perfect but i wanna get close to it......







You don't have permission to post.




Login or Register to post messages in this topic





















Contact | Leaders | Disclaimer | Privacy

Copyright @ Prep for USMLE. All rights reserved.