Overview of Macronutrient Metabolism

What is TCA/ Kerbs cycle role in human metabolism?

• breakdown proteins in the stomach via enzymes

• transport glucose into enterocytes

• increase intestinal absorption of lipids

• transfer high energy electrons to the electron transport chain

How many molecules of acetyl CoA, an acetyl group attached to ‘coenzyme A’, are produced from a single molecule of glucose for participation in the Krebs cycle?

(a)  

Which of the following are true about the electron transport chain?

• series of four protein complexes that couple redox reactions

• creates an electrochemical gradient that leads to the creation of ATP via oxidative phosphorylation

• does not occur in the mitochondria

• creates adenosine triphosphate

(a)   is the most common energy storing molecule.

What is the outcome of an anabolic reaction?

• energy is released

• energy is utilized

Catabolic reactions_____________.

• release energy

• take place within the cell

• are not metabolic reactions

• large molecules are separated to create small molecules

Insulin is ___________.

• released from the pancreas

• released from the liver

• not utilized to treat diabetes

• can effect blood glucose levels

Glycogen is produced in the _________.

• liver

• pancreas

• stomach

• gallbladder

Carbohydrate main purpose is (a)   .

What is protein utilized for in the body?

• repair body tissues

• builds bones

• builds body tissues

• source of energy