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DIRECTIONS: Choose the letter of the answer choice that best answers the question.

1. Which of the following is not a function of polysaccharides?

A. energy source

B. energy storage

C. structural support

D. storage of genetic information

2. Which of the following statements is false?

G. Starch is a lipid.

H. Saturated fats are solid at room temperature. J. Unsaturated fats are liquid at room temperature.

3. Which of the following molecules stores hereditary information?

C. protein

D. carbohydrates

4. What is the name of the molecule in plants that stores sugars?

F. starch

G. protein

H. cellulose J. glycogen

INTERPRETING GRAPHICS: The figure below illustrates the basic structure of a cell membrane. Use the figure to answer the questions that follow.



5. Which of the following molecules make up the basic structure of a cell membrane?

A. waxes

B. steroids

C. fatty acids

D. phospholipids

6. The "tails" of the molecules in the figure orient away from water. Which of the following describes the tail's movement away from water?

F. polar

G. adhesive

H. hydrophilic J. hydrophobic

DIRECTIONS: Complete the following analogy.

7. simple sugars : carbohydrates :: amino acids :

A. lipids

B. proteins

C. nucleic acids

D. amino groups

INTERPRETING GRAPHICS: The figure below represents the structural formula of a molecule. Use the figure to answer the question that follows.

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