NTP Human Nutrition Fundamentals

Question 1

Which of the following is considered a macronutrient?

Accepted Answer

Carbohydrates

Answer

Macronutrients are nutrients that the body needs in large amounts to provide energy and support bodily functions. Carbohydrates, along with proteins and fats, are the three primary macronutrients. Vitamins and minerals are micronutrients, needed in smaller quantities, while water is essential but not typically categorized as a macronutrient in the same way.

Question 2

What is the primary function of proteins in the human body?

Accepted Answer

Supporting cell division and growth.

Answer

Proteins are fundamental building blocks for every cell in the human body and are essential for growth and repair of tissues. Their primary function includes supporting cell division, synthesizing enzymes and hormones, and building and repairing muscles, skin, and other body tissues. While they can provide energy, it's not their main role compared to carbohydrates and fats.

Question 3

Which vitamin is essential for the absorption of calcium in the body?

Accepted Answer

Vitamin D

Answer

Vitamin D is absolutely essential for the absorption of calcium in the intestines. Without adequate Vitamin D, the body cannot effectively absorb calcium, leading to calcium deficiency even if dietary intake is sufficient. This critical role makes Vitamin D vital for maintaining strong bones and teeth, as well as for muscle and nerve function.

Question 4

Which mineral is necessary for oxygen transport in the blood?

Accepted Answer

Iron

Answer

Iron is a crucial component of hemoglobin, a protein found in red blood cells. Hemoglobin is responsible for binding to oxygen in the lungs and transporting it throughout the body to tissues and organs. Without sufficient iron, the body cannot produce enough healthy red blood cells, leading to impaired oxygen transport and conditions like anemia.

Question 5

What is the role of antioxidants in the body?

Accepted Answer

Protect cells from damage.

Answer

Antioxidants are molecules that combat oxidative stress in the body. Oxidative stress is caused by free radicals, unstable molecules that can damage cells, DNA, and proteins. By neutralizing these free radicals, antioxidants help protect cells from damage, which can reduce the risk of chronic diseases and support overall cellular health.

(NTP) Nutritional Therapy Practitioner Practice Test

(NTP) Nutritional Therapy Practitioner Practice Test

NTP Human Nutrition Fundamentals