NTA Nutritional Science Fundamentals

Question 1

Which macronutrient is the primary source of energy for the human body?

Accepted Answer

Carbohydrates

Answer

Carbohydrates are the body's preferred and most readily available source of energy. They are broken down into glucose, which is used by cells for fuel, especially for the brain and muscles. While proteins and fats also provide energy, carbohydrates are the primary macronutrient dedicated to this vital function.

Question 2

Which vitamin is fat-soluble and essential for blood clotting?

Accepted Answer

Vitamin K

Answer

Vitamin K is a fat-soluble vitamin critically important for blood coagulation. It plays a key role in the synthesis of several proteins required for blood clotting, preventing excessive bleeding. Deficiencies can lead to impaired clotting and increased bruising.

Question 3

What mineral is important for oxygen transport in the blood?

Accepted Answer

Iron

Answer

Iron is an essential mineral primarily known for its role in oxygen transport. It is a crucial component of hemoglobin, a protein in red blood cells that binds oxygen in the lungs and carries it throughout the body. Without sufficient iron, the body cannot produce enough healthy red blood cells, leading to fatigue and anemia.

Question 4

Which nutrient is essential for building and repairing body tissues?

Accepted Answer

Proteins

Answer

Proteins are fundamental macronutrients essential for building, repairing, and maintaining virtually all body tissues, including muscles, organs, skin, and hair. They are composed of amino acids, which serve as the building blocks for enzymes, hormones, and other vital molecules. Adequate protein intake is crucial for growth, recovery, and overall physiological function.

Question 5

Which vitamin deficiency causes scurvy?

Accepted Answer

Vitamin C

Answer

Scurvy is a classic deficiency disease caused by an inadequate intake of Vitamin C (ascorbic acid). Vitamin C is essential for the synthesis of collagen, a vital protein for healthy connective tissues, blood vessels, and skin. Without sufficient Vitamin C, the body cannot properly form collagen, leading to symptoms like bleeding gums, easy bruising, and poor wound healing.

(NTA) Nutritional Therapy Association Certification Practice Test

(NTA) Nutritional Therapy Association Certification Practice Test

NTA Nutritional Science Fundamentals