12.5

Question 1

Glycerol

Answer 1

A substance (also
called glycerine) derived from the breakdown of triglycerides, along with fatty
acids; can be converted by the liver into
glucose.

Question 2

Fatty acid

Answer 2

A substance derived from the
breakdown of triglycerides, along with
glycerol; can be metabolized by most cells
of the body except for the brain.

Question 3

Fasting phase

Answer 3

The phase of metabolism
during which nutrients are not available
from the digestive system; glucose, amino
acids, and fatty acids are derived from
glycogen, protein, and adipose tissue
during this phase

Question 4

Absorptive Phase

Answer 4

The phase of metabolism during which nutrients are absorbed
from the digestive system; glucose and
amino acids constitute the principal
source of energy for cells during this
phase, and excess nutrients are stored in
adipose tissue in the form of triglycerides.

Question 5

Ghrelin

Answer 5

A peptide hormone released by
the stomach that increases eating; also
produced by neurons in the brain