Chapter 26 - Metabolism

Question 1

What are the three gut - brain peptides?

Answer 1

1. Ghrelin
2. Peptide YY (PYY(
3. Cholecystokinin (CKK)

Question 2

What are two long-term appetite regulators?

Answer 2

1. Leptin

2. Insulin

Question 3

Which gut - brain peptide indicates hunger?

Answer 3

Ghrelin

Question 4

Which gut - brain peptide indicates satiation/fullness?

Answer 4

Peptide YY (PYY)

Question 5

Which gut - brain peptide is secreted by the pancreas when food is in the small intestine, in order to suppresses appetite?

Answer 5

Cholescystokinin (CKK)

Question 6

Leptin is secreted by _______.

Answer 6

fat cells

Question 7

What does Leptin do in appetite regulation?

Answer 7

Leptin maintains the amount of body fat.

When you lose fat, Leptin secretions fall, making you hungrier.

Question 8

What does Insulin do in appetite regulation?

Answer 8

Insulin lowers blood glucose to maintain body fat (like leptin).

Question 9

The amount of heat required to raise one gram of water to one degree Centigrade is a ________.

Answer 9

calorie

Question 10

The dietary amount put on food labels are actually ______.

Answer 10

kilocalories (kcals) = 1,000 calories

Question 11

Which biological macromolecules contain the most calories?

Answer 11

Fats