Question 1

Which suffix is most commonly found at the end of sugar (carbohydrate) names?

Accepted Answer

-ose

Question 2

Which of the following is a correct example of a monosaccharide?

Accepted Answer

Glucose

Question 3

A patient is diagnosed with a deficiency in essential fatty acids. Which of the following is an example of an essential fatty acid that should be supplemented?

Accepted Answer

Linolenic acid

Question 4

Which of the following best describes the structural difference between saturated and unsaturated fats?

Accepted Answer

Saturated fats contain only single bonds between carbon atoms, while unsaturated fats contain at least one double bond.

Question 5

How many rings are present in the structure of a typical steroid molecule?

Accepted Answer

4

Question 6

Which of the following is NOT a function of carbohydrates in living organisms?

Accepted Answer

Catalyzing biochemical reactions

Question 7

What happens to a protein when it is denatured?

Accepted Answer

Its secondary, tertiary, and quaternary structures are disrupted, but the primary structure remains intact.

Question 8

Which of the following correctly lists the four steps in making a protein, in order?

Accepted Answer

Replication, transcription, translation, folding

Question 9

Hemoglobin and myoglobin both bind oxygen, but which statement best describes their difference?

Accepted Answer

Hemoglobin can bind four oxygen molecules, while myoglobin binds only one.

Question 10

Which of the following statements about enzymes is TRUE?

Accepted Answer

Enzymes are proteins that lower the activation energy of reactions.

Question 11

How many amino acids are commonly found in proteins, and how are they joined together?

Accepted Answer

20 amino acids, joined by peptide bonds formed between the amino group of one and the carboxyl group of another

Question 12

Which of the following is NOT a part of a nucleotide?

Accepted Answer

Amino acid

Question 13

Which base pairing is correct for DNA?

Accepted Answer

A pairs with T, G pairs with C

Question 14

Which of the following best describes the function of ATP in cells?

Accepted Answer

ATP acts as the main energy currency for cellular processes

Question 15

During DNA replication, which enzyme is primarily responsible for synthesizing the new DNA strand?

Accepted Answer

DNA polymerase

Question 16

Which of the following is NOT a type of RNA involved in protein synthesis?

Accepted Answer

dRNA

Question 17

What is the main function of the mitochondrion in a cell?

Accepted Answer

Energy production through aerobic respiration

Question 18

How many molecules of ATP are produced from the complete oxidation of one molecule of glucose in aerobic respiration?

Accepted Answer

$$38$$

Question 19

Which of the following best defines metabolism?

Accepted Answer

The sum of all chemical reactions in a living organism

Question 20

Which of the following correctly describes the difference between anabolism and catabolism?

Accepted Answer

Anabolism builds up molecules, catabolism breaks them down

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