Question 1

Which of the following best describes a polymer in biological systems?

Accepted Answer

A large molecule consisting of many similar or identical building blocks linked by covalent bonds.

Question 2

During the synthesis of a polymer, which chemical reaction is primarily responsible for joining monomers together?

Accepted Answer

Dehydration reaction

Question 3

Which of the following equations correctly represents the dehydration reaction that forms a polymer from two monomers?

Accepted Answer

$$\mathrm{Monomer}_1 + \mathrm{Monomer}_2 \rightarrow \mathrm{Polymer} + \mathrm{H}_2\mathrm{O}$$

Question 4

Which process is the reverse of a dehydration reaction and is used to break down polymers into monomers?

Accepted Answer

Hydrolysis

Question 5

A scientist is studying the digestion of starch in the human body. Which reaction is primarily responsible for breaking down starch into glucose monomers?

Accepted Answer

Hydrolysis reaction

Question 6

Which of the following statements about the diversity of polymers is TRUE?

Accepted Answer

The diversity of polymers arises from variations in the sequence and type of monomers.

Question 7

Proteins are built from 20 kinds of amino acids. If a protein is 100 amino acids long, how many possible unique sequences can be formed?

Accepted Answer

$$20^{100}$$

Question 8

Which of the following is NOT a function of monomers in biological systems?

Accepted Answer

Acting as catalysts for chemical reactions

Question 9

Which statement best explains why macromolecules can have emergent properties not found in their individual monomers?

Accepted Answer

The arrangement and interactions of monomers in a polymer create new structural and functional characteristics.

Question 10

A dehydration reaction between two monomers results in the formation of a covalent bond and the release of which molecule?

Accepted Answer

$$\mathrm{H}_2\mathrm{O}$$

Question 11

Which of the following best describes hydrolysis in the context of polymer breakdown?

Accepted Answer

A water molecule is added, splitting the bond between monomers.

Question 12

If a cell needs to rapidly absorb monomers from the breakdown of polymers, which process must be increased?

Accepted Answer

Hydrolysis

Question 13

Which of the following is a correct statement about the relationship between monomers and polymers?

Accepted Answer

Polymers are formed by linking monomers through covalent bonds.

Question 14

Which of the following is a real-world example of hydrolysis?

Accepted Answer

Digestion of starch into glucose in the human intestine

Question 15

Which equation represents the hydrolysis of a polymer?

Accepted Answer

$$\mathrm{Polymer} + \mathrm{H}_2\mathrm{O} \rightarrow \mathrm{Monomer}_1 + \mathrm{Monomer}_2$$

Question 16

Which of the following best explains why proteins can have such a vast diversity of functions?

Accepted Answer

Proteins are built from 20 different amino acids arranged in countless sequences.

Question 17

A cell contains thousands of different macromolecules. What is the primary reason for this diversity?

Accepted Answer

Cells assemble macromolecules from different combinations and sequences of monomers.

Question 18

Which of the following statements about the synthesis and breakdown of polymers is correct?

Accepted Answer

Hydrolysis reactions break polymers into monomers.

Question 19

Which of the following is a plausible consequence if a cell's enzymes for hydrolysis are nonfunctional?

Accepted Answer

The cell would be unable to break down polymers into monomers for absorption.

Question 20

Which of the following best describes the molecular logic of life as discussed in the study materials?

Accepted Answer

Small molecules are ordered into unique macromolecules, creating diversity and function.

Macromolecules: Polymers and Monomers in Biology

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