Nutritional Biochemistry Quizzes for Medical Students

Question 1

Deficiency of which vitamin is associated with night blindness?

Accepted Answer

Vitamin A

Answer

Vitamin C

Answer

Vitamin D

Answer

Vitamin E

Question 2

Which macronutrient serves as our body's primary source of energy?

Accepted Answer

Carbohydrates

Answer

Protein

Answer

Fats

Answer

Vitamins

Question 3

Which of the following is not a function attributed to dietary fibre?

Accepted Answer

Providing energy

Answer

Promoting feelings of fullness

Answer

Regulating blood sugar levels

Answer

Reducing cholesterol levels

Question 4

Which enzyme facilitates the digestion of proteins?

Accepted Answer

Pepsin

Answer

Amylase

Answer

Lipase

Answer

Lactase

Question 5

Which vitamin is synthesized within the human body?

Accepted Answer

Vitamin D

Answer

Vitamin A

Answer

Vitamin C

Answer

Vitamin B12

Question 6

Which dietary recommendations are specifically tailored for pregnant women?

Accepted Answer

Increase intake of folate and iron.

Accepted Answer

Limit intake of caffeine and alcohol.

Accepted Answer

Maintain a healthy weight gain.

Answer

Continue taking all prescribed medications.

Question 7

Which vitamin is crucial for the production of prothrombin, a protein essential for blood coagulation?

Accepted Answer

Vitamin K

Answer

Vitamin A

Answer

Vitamin C

Answer

Vitamin D

Question 8

Which mineral forms the central ion in the haemoglobin molecule, enabling oxygen transport in red blood cells?

Accepted Answer

Iron

Answer

Calcium

Answer

Potassium

Answer

Magnesium

Question 9

Carbohydrates play various roles in the body. Which of the following is NOT a function of carbohydrates?

Accepted Answer

Serving as building blocks for the synthesis of proteins

Answer

Providing immediate energy

Answer

Storing energy for later use

Answer

Regulating blood sugar levels

Question 10

Which amino acid is indispensable for the production of thyroid hormones, which regulate metabolism and growth?

Accepted Answer

Tyrosine

Answer

Glycine

Answer

Serine

Answer

Methionine

Question 11

Enzymes are essential for digestion. Which enzyme is specifically involved in breaking down fats into smaller molecules?

Accepted Answer

Lipase

Answer

Amylase

Answer

Protease

Answer

Lactase

Question 12

Which vitamin plays a pivotal role in maintaining a healthy immune system, protecting the body from infections?

Accepted Answer

Vitamin C

Answer

Vitamin A

Answer

Vitamin B12

Answer

Vitamin E

Question 13

Vitamin B12 is essential for various bodily functions. Which condition is a consequence of vitamin B12 deficiency?

Accepted Answer

Pernicious anemia

Answer

Scurvy

Answer

Night blindness

Answer

Rickets

Question 14

Which mineral is paramount for the development and maintenance of strong and healthy bones and teeth?

Accepted Answer

Calcium

Answer

Phosphorus

Answer

Potassium

Answer

Sodium

Question 15

Hormones are chemical messengers that regulate various bodily functions. Which hormone is primarily responsible for controlling blood sugar levels?

Accepted Answer

Insulin

Answer

Glucagon

Answer

Adrenaline

Answer

Cortisol

Question 16

What are potential health consequences of insufficient mineral intake?

Accepted Answer

Cardiac arrhythmias

Accepted Answer

Delayed growth

Answer

Skin inflammation

Answer

Increased appetite

Question 17

Which nutrient provides the building blocks for constructing and repairing body tissues?

Accepted Answer

Proteins

Answer

Carbohydrates

Answer

Fats

Answer

Minerals

Question 18

Which vitamin is indispensable for the synthesis of collagen, a protein essential for wound healing?

Accepted Answer

Vitamin C

Answer

Vitamin A

Answer

Vitamin D

Question 19

The primary function of iron in the human body is:

Accepted Answer

Oxygen transport

Answer

Immune function

Answer

Bone mineralization

Answer

Energy production

Question 20

A deficiency of which nutrient can result in anemia, a condition characterized by a reduced number of red blood cells?

Accepted Answer

Iron

Answer

Calcium

Answer

Potassium

Answer

Sodium

Question 21

Which of the following vitamins is water-soluble, meaning it can be dissolved in water?

Accepted Answer

Vitamin C

Answer

Vitamin A

Answer

Vitamin D

Answer

Vitamin K

Question 22

The Recommended Daily Allowance (RDA) for a nutrient is defined as:

Accepted Answer

The amount necessary to prevent deficiency symptoms

Answer

The average amount consumed by the population

Answer

The maximum amount that can be consumed without harm

Question 23

Which of the following is a primary function of carbohydrates in the body?

Accepted Answer

Providing energy

Answer

Facilitating muscle contraction

Answer

Regulating hormone production

Answer

Storing genetic information

Question 24

The hormone responsible for regulating blood glucose levels and promoting glucose uptake by cells is:

Accepted Answer

Insulin

Answer

Cortisol

Answer

Epinephrine

Answer

Glucagon

Question 25

Which of the following is a common risk factor for nutritional deficiencies?

Accepted Answer

Poor diet

Answer

Adequate sleep

Answer

Regular exercise