Chapter 3 Concept Checks

Question 1

Which part of the intestines does chyme arrive in first upon exiting the stomach?
a. Colon
b. Ileum
c. Jejunum
d. Duodenum

Answer 1

d. Duodenum

Question 2

Which digestive secretion is the most acidic?
a. Bile
b. Saliva
c. Gastric juice
d. Pancreatic juice

Answer 2

c. Gastric juice

Question 3

Which food would begin to be digested in the mouth?
a. Cheese
b. Salami
c. Olive oil
d. Crackers

Answer 3

d. Crackers

Question 4

Which step occurs first in the vascular system?
a. Blood leaves the left side of the heart via the aorta.
b. Blood leaves the right side of the heart via the pulmonary artery.
c. Blood either leaves the aorta and goes to the upper body and head, or travels to the lower body.
d. Blood loses carbon dioxide, picks up oxygen in the lungs, and then returns to the heart’s left side via the pulmonary vein.

Answer 4

b. Blood leaves the right side of the heart via the pulmonary artery.

Question 5

The nutrients from which food would be carried in the lymphatic system to the heart?
a. Mayonnaise
b. Apple slices
c. Wheat bread
d. Chicken breast

Answer 5

a. Mayonnaise

Question 6

Which type of diet promotes the most favorable changes in the gastrointestinal microbiota?
a. Paleo
b. Low-fat
c. Ketogenic
d. Plant-based

Answer 6

d. Plant-based