Quizzes 7-10

Question 1

Before entering the metabolic pathways, amino acids first face____.

Answer 1

Removal of their nitrogen-containing amino group

Question 2

Fatty acid oxidation produces ____.

Answer 2

acetyl CoA

Question 3

For short, intense exercise, which energy-producing pathway does the body rely on most?

Answer 3

Glucose to pyruvate to lactate

Question 4

The metabolic breakdown of glucose to pyruvate is known as

Answer 4

glycolysis

Question 5

The term that describes the sum of all chemical reactions that go on in living cells is _____.

Answer 5

metabolism

Question 6

A person’s ________ is a good indicator of central obesity.

Answer 6

waist circumference

Question 7

Of the following, who has the highest metabolic rate?

Answer 7

An adolescent girl

Question 8

Research shows less susceptibility to health problems when excess body fat is distributed around the ________.

Answer 8

hips and thighs

Question 9

Though it has limitations, a basic rule of energy balance states that 1 pound of fat is stored for each ________ kcalories eaten in excess.

Answer 9

3500

Question 10

Which energy-yielding nutrient is the most satiating?

Answer 10

Protein

Question 11

Ghrelin is secreted by cells in the ________.

Answer 11

stomach (secreted by parietal cells in the gastric fundus)

Question 12

How do environmental influences affect eating habits?

Answer 12

Foods that are accessible and convenient are eaten most.

Question 13

Which of the following defines the body’s set point?

Answer 13

Point above which the body tends to lose weight and below which it tends to gain weight

Question 14

Which of the following removes triglycerides from the blood for storage in fat and muscle cells?

Answer 14

Lipoprotein lipase (LPL)

Question 15

Which of the following statements accurately describes fat cell development?

Answer 15

An obese person has more and larger fat cells than does a healthy-weight person.

Question 16

B vitamins have a major role in _______.

Answer 16

energy metabolism

Question 17

High intakes of folate can mask a deficiency of which nutrient?

Answer 17

Vitamin B12

Question 18

One difference between water-soluble vitamins and fat-soluble vitamins is that ____.

Answer 18

water-soluble vitamins need to be consumed more frequently than fat-soluble vitamins

Question 19

The bioavailability of vitamins in food ____.

Answer 19

depends on many factors, such as how the food was prepared

Question 20

Why is folate supplementation recommended for women one month before conception and during the first trimester of pregnancy?

Answer 20

To prevent neural tube defects, such as spina bifida, which may occur during the early weeks of pregnancy.