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

Question 1

Which of the following best describes a dehydration synthesis reaction?

Accepted Answer

A reaction in which two monomers are joined together by removing a water molecule

Question 2

Which of the following is a correct pairing of a biomolecule and its monomer?

Accepted Answer

Carbohydrate – Monosaccharide

Question 3

A patient with uncontrolled diabetes mellitus is at risk for which metabolic condition due to elevated ketone bodies?

Accepted Answer

Ketoacidosis

Question 4

Which of the following statements about phospholipids is TRUE?

Accepted Answer

They are the major component of the plasma membrane

Question 5

Which of the following best explains why butter is solid at room temperature while olive oil is liquid?

Accepted Answer

Butter contains more saturated fatty acids than olive oil

Question 6

Which of the following is a function of eicosanoids such as prostaglandins?

Accepted Answer

Regulating inflammation and pain

Question 7

What type of bond forms between two amino acids during protein synthesis?

Accepted Answer

Peptide (covalent) bond

Question 8

Which of the following best describes the tertiary structure of a protein?

Accepted Answer

The overall three-dimensional shape of a single polypeptide

Question 9

Denaturation of a protein can occur due to which of the following?

Accepted Answer

Extreme pH or high temperature

Question 10

Which of the following is TRUE regarding DNA structure?

Accepted Answer

Adenine pairs with thymine via hydrogen bonds

Question 11

A hydrolysis reaction is best described by which of the following equations?

Accepted Answer

$$	ext{Polymer} + 	ext{H}_2	ext{O} ightarrow 	ext{Monomer}_1 + 	ext{Monomer}_2$$

Question 12

Which of the following is a correct example of complementary base pairing in DNA?

Accepted Answer

Cytosine – Guanine

Question 13

Which of the following best explains why lipids do not dissolve in water?

Accepted Answer

Lipids are hydrophobic and nonpolar

Question 14

Which of the following is a function of proteins in the body?

Accepted Answer

Acting as enzymes to catalyze reactions

Question 15

Which of the following best describes the structure of a steroid molecule?

Accepted Answer

A ring structure composed of three six-carbon rings and one five-carbon ring

Question 16

Which of the following is a real-life example of protein denaturation?

Accepted Answer

Frying an egg

Question 17

Which of the following is a correct description of a micelle?

Accepted Answer

A structure formed by phospholipids with hydrophobic tails facing inward and hydrophilic heads facing outward

Question 18

Which of the following is a function of glycogen in the human body?

Accepted Answer

Storing glucose for energy in muscle and liver

Question 19

Which of the following is a difference between DNA and RNA?

Accepted Answer

DNA is double-stranded, while RNA is single-stranded

Question 20

Which of the following best describes the process by which triglycerides are formed?

Accepted Answer

Three fatty acids are joined to one glycerol molecule by dehydration synthesis, releasing three water molecules

Chemical Composition of the Body: Biomolecules

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