Question 1

Which of the following best explains why water is an excellent solvent for many biological molecules?

Accepted Answer

Water is a polar molecule, allowing it to form hydrogen bonds with charged and polar substances.

Question 2

A patient is found to have a genetic disorder that prevents the formation of glycogen. Which metabolic process would be directly impaired?

Accepted Answer

Glycogenesis

Question 3

Which of the following statements about triglycerides is correct?

Accepted Answer

Triglycerides are composed of three fatty acids and one glycerol molecule.

Question 4

During the post-absorptive state, which hormone is primarily responsible for increasing blood glucose levels?

Accepted Answer

Glucagon

Question 5

Which of the following best describes the difference between ionic and covalent bonds?

Accepted Answer

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons.

Question 6

A molecule of glucose has the chemical formula $$C_6H_{12}O_6$. Which class of biomolecule does it belong to?

Accepted Answer

Carbohydrate

Question 7

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

Accepted Answer

Catalyzing biochemical reactions as enzymes

Question 8

Which of the following best explains why phospholipids are essential for cell membrane structure?

Accepted Answer

They have both hydrophilic heads and hydrophobic tails, allowing them to form bilayers in aqueous environments.

Question 9

A person is fasting and has not eaten for 12 hours. Which metabolic process is most active to maintain blood glucose levels?

Accepted Answer

Glycogenolysis

Question 10

Which of the following best describes the role of leptin in energy homeostasis?

Accepted Answer

Leptin is produced by fat cells and suppresses appetite.

Question 11

Which of the following is true regarding the structure of proteins?

Accepted Answer

Primary structure refers to the sequence of amino acids in a polypeptide chain.

Question 12

Which of the following best explains why triglycerides provide more energy per gram than carbohydrates?

Accepted Answer

Triglycerides have more carbon-hydrogen bonds, which release more energy when broken.

Question 13

Which of the following is a correct description of hydrolysis?

Accepted Answer

Hydrolysis is the breakdown of a molecule by adding a water molecule.

Question 14

Which of the following best describes the function of nucleic acids in the body?

Accepted Answer

They store and transmit genetic information.

Question 15

A patient with a deficiency in thyroid hormones is likely to experience which of the following?

Accepted Answer

Decreased basal metabolic rate (BMR)

Question 16

Which of the following is a correct example of a disaccharide and its components?

Accepted Answer

Sucrose, composed of glucose and fructose

Question 17

Which of the following best explains the role of hydrogen bonds in the properties of water?

Accepted Answer

Hydrogen bonds allow water to have a high specific heat and surface tension.

Question 18

Which of the following is a correct statement about the post-absorptive state?

Accepted Answer

Glycogenolysis and gluconeogenesis are active to maintain blood glucose.

Question 19

A person consumes a meal high in carbohydrates. Which hormone is released to promote glucose uptake and storage?

Accepted Answer

Insulin

Question 20

Which of the following best describes the process of dehydration synthesis?

Accepted Answer

It joins monomers to form polymers by removing a water molecule.

Chemistry and Metabolism in Anatomy & Physiology

Study Guide - Practice Questions