e table that describes the four classes of large biological molecules.

Carbohydrates Proteins Lipids Nucleic acids

Example

Function of

example

Guided Reading Activity

Module 2.8 Most biological macromolecules are polymers.

Answer the following questions as you read the module:

1. Much of your mass consists of large biological molecules called .

2. _________________ is the process by which polymers are broken into monomers.

A) Metabolism

B) Dehydration synthesis

C) Macromolecules

D) Hydrolysis

3. A common polymer is starch. We break starch down for use as an energy source. Is starch digestion hy-

drolysis or dehydration synthesis?

4. Complete the following diagram using the following terms: dehydration synthesis and hydrolysis.

5. Which of the following best describes the following process: glucose + glucose  maltose + H2O?

A) Polarity

B) Hydrolysis

C) Metabolism

D) Dehydration synthesis

6. Complete the following diagram illustrating dehydration synthesis and hydrolysis.

7. is the total of all reactions that take place in your cells.

8. How are dehydration synthesis and hydrolysis opposites of each other?

Guided Reading Activity

Module 2.9 Carbohydrates are composed of monosaccharides.

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The pH in your cells is dropping. You have buffers to minimize this change in pH. Briefly explain what the buffer would do in this situation with respect to the H+ concentration in your cells.
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