Question 1

Which of the following best describes the primary function of red blood cells in the human body?

Accepted Answer

They transport oxygen from the lungs to all cells in the body.

Question 2

A patient presents with fatigue, pale skin, and shortness of breath. Blood tests reveal low hemoglobin and small, pale red blood cells. Which nutrient deficiency is most likely responsible for these symptoms?

Accepted Answer

Iron

Question 3

Which metabolic pathway is responsible for the breakdown of glucose to pyruvate, releasing energy in the process?

Accepted Answer

Glycolysis

Question 4

Which vitamin is required as a coenzyme for enzymes that break down glucose and is also necessary for RNA, DNA, and ATP synthesis?

Accepted Answer

Thiamine (Vitamin B1)

Question 5

A deficiency in which vitamin is most closely associated with the development of macrocytic anemia and increased risk of neural tube defects in offspring?

Accepted Answer

Folate (Vitamin B9)

Question 6

Which mineral is a key component of hemoglobin and is essential for oxygen transport in the blood?

Accepted Answer

Iron

Question 7

Which of the following best explains why fat is a more efficient storage form of energy than glycogen?

Accepted Answer

Fat is more compact and stores more energy per gram than glycogen.

Question 8

A person who consumes large amounts of raw egg whites over an extended period may develop a deficiency in which vitamin, potentially leading to hair loss?

Accepted Answer

Biotin (Vitamin B7)

Question 9

Which vitamin is necessary for the synthesis of coenzyme A, which is involved in the synthesis of lipids, cholesterol, and acetylcholine?

Accepted Answer

Pantothenic Acid (Vitamin B5)

Question 10

A patient with a history of alcohol use disorder presents with dry, scaly skin, mouth sores, and light sensitivity. Which vitamin deficiency is most likely?

Accepted Answer

Riboflavin (Vitamin B2)

Question 11

Which mineral is essential for the synthesis of thyroid hormone and, if deficient, can lead to goiter and developmental disorders in infants?

Accepted Answer

Iodine

Question 12

Which vitamin is critical for blood clotting, and its deficiency can result in symptoms such as nosebleeds and easy bruising?

Accepted Answer

Vitamin K

Question 13

Which of the following best describes the role of catabolic pathways in metabolism?

Accepted Answer

They break down molecules to release energy.

Question 14

A person with a deficiency in which mineral may experience tremors, muscle spasms, and loss of appetite due to its role as a cofactor in hundreds of metabolic reactions?

Accepted Answer

Magnesium

Question 15

Which of the following interventions is NOT recommended by the World Bank to combat iron deficiency anemia in high-risk populations?

Accepted Answer

Encouraging exclusive consumption of plant-based iron sources

Question 16

Which vitamin is required for the synthesis of hemoglobin and is also necessary for fat and protein catabolism?

Accepted Answer

Cobalamin (Vitamin B12)

Question 17

Which of the following best explains why vitamin C enhances iron absorption when consumed with iron-rich foods?

Accepted Answer

Vitamin C converts iron to its more absorbable ferrous form ($$Fe^{2+}).$$

Question 18

Which mineral acts as a cofactor for enzymes involved in glucose production and amino acid catabolism?

Accepted Answer

Manganese

Question 19

A patient with severe diarrhea, dermatitis, and dementia is most likely suffering from a deficiency in which vitamin?

Accepted Answer

Niacin (Vitamin B3)

Question 20

Which of the following statements about minerals is TRUE?

Accepted Answer

Minerals are cofactors for hundreds of enzymes involved in metabolism.

Nutrients Important for Metabolism and Blood Function: Study Notes for Anatomy & Physiology

Study Guide - Practice Questions

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