Nutrition 4 Flashcards
1
Q
What are macronutrients
A
- carbohydrates
- proteins
- fats and oils (lipids)
2
Q
What is the postabsorptive state
A
Is the period when the GI tract is empty and the energy comes from the breakdown of the body’s reserves
3
Q
What is increased in the postabsorptive state
A
Rate of glucose release from the liver is increased
4
Q
What is FFA used for
A
Ketone, glycerol
5
Q
What is the role of fatty free acids
A
Synthesis of ketone bodies and glycerol
6
Q
What is the process of guconeogenesis
A
Glucose is synthesised from lactate, pyruvate, glycerol and amino acids
7
Q
What are the metabolic and hormonal responses in the absorptive state
A
Increase in blood glucose, increase blood triglycerides, blood NEFA, blood B-hydorxybutyrate
8
Q
What is the effect of insulin on CHO metabolism
A
- stimulates glucose uptake by cells
- stimulates glycolyses
- stimulate glycogen synthesis
- inhibits glycogen catabolism
