Overview of Energy Metabolism

Question 1

What does skeletal muscle do in a fed state?

Answer 1

store glucose as glycogen
cleave dietary fatty acids to make acetyl CoA for energy
make alpha-keto acids from dietary AAs and use for energy

Question 2

What does cardiac muscle do in a fed state?

Answer 2

cleave dietary fatty acids to make acetyl CoA for energy

Question 3

What does adipose tissue do in a fed state?

Answer 3

make fatty acids with excess carbohydrates

store TAGs made from dietary fatty acids, liver, and made itself

Question 4

What does the liver do in a fed state?

Answer 4

stores glucose as glycogen
makes fatty acids with excess carbs
makes cholesterol for transport of synthesized TAGs
makes alpha-keto acids from alanine and glutamine (from skeltal muscle) and use to make fatty acids –> TAGs
makes urea with nitrogen waste from metabolism in liver and skeletal muscle

Question 5

What does the skeletal muscle do in a fasting state?

Answer 5

cleave glycogen to make glucose
make alpha-keto acids from own AAs
cleaves fatty acids from adipose and ketone bodies from liver to make Acetyl CoA for energy

Question 6

What does cardiac muscle do in a fasting state?

Answer 6

cleaves fatty acids from adipose and ketone bodies from the liver to make Acetyl CoA for energy

Question 7

What does adipose tissue do in a fasting state?

Answer 7

cleave TAGs to make fatty acids and glycerol for muscles and liver

Question 8

What does the liver do in a fasting state?

Answer 8

cleave glycogen to make glucose for transport to other tissues
makes alpha-keto acids from alanine and glutamine from skeletal muscle to make glucose
cleave fatty acids from adipose to make ketone bodies for transport
make urea with nitrogen waste from metabolism of AAs from skeletal muscle

Question 9

What does skeletal muscle do in fight/flight response?

Answer 9

cleave glycogen to make glucose
make alpha-keto acids from its own AAs and uses them for energy
cleaves fatty acids from adipose and ketone bodies from liver to make Acetyl CoA for energy

Question 10

What does cardiac muscle do in fight/flight response?

Answer 10

cleaves fatty acids from adipose and ketone bodies from liver to make Acetyl CoA for energy

Question 11

What does adipose tissue do in fight/flight response?

Answer 11

cleaves TAGs to make fatty acids and glycerol for transport to muscle and liver

Question 12

What does the liver do in fight/flight response?

Answer 12

cleaves glycogen to make glucose for transport
makes alpha-keto acids from alanine and glutamine to make glucose
cleaves fatty acids from adipose to make ketone bodies for transport
makes urea with nitrogen waste from metabolism of AAs in skeletal muscle