Question

match each term on the left with the best descriptor on the right. each descriptor may be used only once.

1. — absorption
2. — alveoli
3. — arteries
4. — capillaries
5. — cellular respiration
6. — digestion
7. — red blood cells
8. — veins

a. air sacs in the lungs where gas exchange occurs.
b. the smallest blood vessels.
c. blood cells that carry oxygen and carbon dioxide in the blood.
d. vessels that carry carbon dioxide - rich blood back to the heart.
e. vessels that carry oxygen - rich blood from the heart to the capillaries.
f. chemical reaction that occurs in cells and requires oxygen and glucose.
g. the process by which nutrients pass from the digestive system to the blood.
h. the process by which food is physically and chemically broken down into nutrients.

Explanation:

• Absorption: Matches with G as it describes the process of nutrients moving from the digestive system to the blood.
• Alveoli: Matches with A as they are the air - sacs in the lungs for gas exchange.
• Arteries: Matches with E as they carry oxygen - rich blood from the heart.
• Capillaries: Matches with B as they are the smallest blood vessels.
• Cellular respiration: Matches with F as it is the chemical reaction in cells requiring oxygen and glucose.
• Digestion: Matches with H as it is the process of breaking down food into nutrients.
• Red blood cells: Matches with C as they carry oxygen and carbon dioxide.
• Veins: Matches with D as they carry carbon dioxide - rich blood back to the heart.

Answer:

1. G, 2. A, 3. E, 4. B, 5. F, 6. H, 7. C, 8. D