Lecture 11: Integraton Of Metaboliism Flashcards Preview

Danielle- MCM Test 1 > Lecture 11: Integraton Of Metaboliism > Flashcards

Flashcards in Lecture 11: Integraton Of Metaboliism Deck (18):
1

T/F: The liver processes most, but not all, dietary amino acids.

True

- The kidney can process some as well

2

T/F: The presence of glucose-6-phosphatase makes the liver uniquely able to release glucose from glycogen into the bloodstream

True

- The muscles can do this only in a limited capacity

3

T/F: the liver synthesizes most of the urea produced in the body

True

- The kidney can do this as well

4

T/F: The liver normally fuels the body by releasing its fat stores during fasting

False

5

T/F: one of the livers major jobs is to provide fuels for the brain

True

6

What 3 things can glucose-6-phosphate make?

Glycogen
Pyruvate
Ribose-5-P

7

What 4 things can pyruvate make?

Acetyl CoA
Lactate
Alanine
Oxaloacetate

8

What is the role of the portal vein?

To carry nutrients from intestine to liver

9

What is the role of the lymphatic system in metabolism?

Carries lipids from intestine to liver

10

What is the role of adipose tissue in metabolism?

Synthesizes, stores and mobilizes TAGs

11

At what low blood sugar level can you start to see subtle neurological signs, hunger, sweating and trembling

~60

12

At what low blood sugar level does lethargy, convulsions and coma occur?

<40

13

What pathways are turned on in a well fed liver?

Glycolysis
FA synthesis
TAG synthesis
Glycogenesis
Cholesterol synthesis

14

What pathways are on in well-fed adipose tissue?

Glycolysis
FA synthesis
TAG synthesis
Cholesterol synthesis

15

What pathways are on in a well fed muscle?

Glycogenesis

16

What pathways are on in a fasting liver?

Glycogenolysis
GLuconeogenesis
FA oxidation
Ketone body synthesis

17

What pathways are turned on in fasting adipose tissue?

FA oxidation
TAG breakdown

**no glucose uptake**

18

What pathways are on in a fasting muscle?

FA oxidation
Ketone body utilization

** no glucose uptake**

**Remember muscle doesnt have glucagon receptors so it would only be responding to epinephrne**