Chapter 7 Concept Check

Question 1

In which part of the cell is lipid synthesized?
a. Chromosome
b. Mitochondria
c. Rough endoplasmic reticulum
d. Smooth endoplasmic reticulum

Answer 1

d. Smooth endoplasmic reticulum

Question 2

Which metabolic pathway is NOT reversible?
a. The step from pyruvate to acetyl CoA.
b. The step from pyruvate to lactate.
c. The step from acetyl CoA to fatty acids.
d. The step from pyruvate to amino acids.

Answer 2

a. The step from pyruvate to acetyl CoA.

Question 3

Which statement accurately describes ketones?
a. Ketosis increases appetite.
b. The pH of the blood rises when someone is in ketosis.
c. After ten days of fasting, ketones will meet much of the nervous system’s energy needs.
d. Individuals lose fat quicker on low-carbohydrate diets compared to other weight loss plans.

Answer 3

c. After ten days of fasting, ketones will meet much of the nervous system’s energy needs.