Chapter 2. 2·12–2·14 Lipids store energy for a rainy day.

Show What You Know - Self Quiz
true
true
You must read each slide, and complete any questions on the slide, in sequence.

Instructions

Check your understanding of concepts from 2·12–2·14 Lipids store energy for a rainy day by answering the following questions.

1.

1. Long-term energy storage and insulation, membrane formation, and creation of sex hormones are characteristics of which of the following?

A.
B.
C.
D.
E.

Correct! (See section 2·12 Lipids are macromolecules with several functions, including energy storage.)
Incorrect. (See section 2·12 Lipids are macromolecules with several functions, including energy storage.)

2.

2. An unsaturated fatty acid is one in which:

A.
B.
C.
D.
E.

Correct! (See section 2·13 Fats are tasty molecules too plentiful in our diets.)
Incorrect. (See section 2·13 Fats are tasty molecules too plentiful in our diets.)

3.

3. Saturated fatty acids have _________________ than unsaturated fatty acids, which is why they exist as a ____________ at room temperature.

A.
B.
C.
D.
E.

Correct! (See section 2·13 Fats are tasty molecules too plentiful in our diets.)
Incorrect. (See section 2·13 Fats are tasty molecules too plentiful in our diets.)

4.

4. Unsaturated fatty acid chains in membrane phospholipids help to maintain fluidity because:

A.
B.
C.
D.
E.

Correct! (See section 2·13 Fats are tasty molecules too plentiful in our diets.)
Incorrect. (See section 2·13 Fats are tasty molecules too plentiful in our diets.)

5.

5. In a phospholipid, the head is _____, and the fatty acid is _____.

A.
B.
C.
D.
E.

Correct! (See section 2·14 Cholesterol and phospholipids are used to build sex hormones and membranes.)
Incorrect. (See section 2·14 Cholesterol and phospholipids are used to build sex hormones and membranes.)

Activity results are being submitted...