Post absorptive mechanisms and energy balance

Question 1

glucose in liver

Answer 1

• with the help of the hormone insulin
• some glucose gets stored in the liver as glycogen
• rest gets converted into acetyl CoA: some goes through krebs cycle to obtain ATP, some gets converted into triglycerides then VLDL and others

Question 2

glucose in muscle

Answer 2

with help of insulin – glucose converted into glycogen which is stored in muscles

Question 3

glucose in the brain

Answer 3

Not stored in brain but instead glucose converted to acetyl CoA in brain which then goes through the Krebs cycle to produce ATP

Question 4

triglycerides

Answer 4

Fats are combined with proteins in order to be transported named depending on molecule e.g. Chylomicrons which then travel in the lymphatic system

Question 5

summary of the fed state

Answer 5

• Fuels are oxidised to energy
• Any excess is stored;
– Triglycerides in adipose tissue
– Glycogen in liver & muscle