Lecture 11: Integraton Of Metaboliism Flashcards
T/F: The liver processes most, but not all, dietary amino acids.
True
- The kidney can process some as well
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
T/F: the liver synthesizes most of the urea produced in the body
True
- The kidney can do this as well
T/F: The liver normally fuels the body by releasing its fat stores during fasting
False
T/F: one of the livers major jobs is to provide fuels for the brain
True
What 3 things can glucose-6-phosphate make?
Glycogen
Pyruvate
Ribose-5-P
What 4 things can pyruvate make?
Acetyl CoA
Lactate
Alanine
Oxaloacetate
What is the role of the portal vein?
To carry nutrients from intestine to liver
What is the role of the lymphatic system in metabolism?
Carries lipids from intestine to liver
What is the role of adipose tissue in metabolism?
Synthesizes, stores and mobilizes TAGs
At what low blood sugar level can you start to see subtle neurological signs, hunger, sweating and trembling
~60
At what low blood sugar level does lethargy, convulsions and coma occur?
<40
What pathways are turned on in a well fed liver?
Glycolysis FA synthesis TAG synthesis Glycogenesis Cholesterol synthesis
What pathways are on in well-fed adipose tissue?
Glycolysis
FA synthesis
TAG synthesis
Cholesterol synthesis
What pathways are on in a well fed muscle?
Glycogenesis
