CNC Fundamentals of Nutrition Science

Question 1

Which nutrient is primarily responsible for building and repairing body tissues?

Accepted Answer

Proteins

Answer

Proteins are often referred to as the 'building blocks' of the body because they are essential for the growth, maintenance, and repair of all body tissues. They are composed of amino acids, which are crucial for synthesizing new cells, repairing damaged ones, and forming enzymes, hormones, and other vital molecules throughout the body.

Question 2

Which vitamin is essential for calcium absorption in the body?

Accepted Answer

Vitamin D

Answer

Vitamin D plays a crucial role in calcium homeostasis by regulating its absorption in the intestines. Without sufficient Vitamin D, the body cannot effectively absorb calcium from food, even if calcium intake is adequate. This can lead to weakened bones and other health issues, highlighting Vitamin D's importance for bone health and overall mineral balance.

Question 3

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

Accepted Answer

Provide energy

Answer

Carbohydrates are the body's primary and preferred source of energy. They are broken down into glucose, which is then used by cells for immediate energy to fuel daily activities, brain function, and exercise. Excess glucose can be stored as glycogen in the liver and muscles for later use.

Question 4

Which of the following is a complete protein source?

Accepted Answer

Eggs

Answer

A complete protein source contains all nine essential amino acids that the human body cannot produce on its own and must obtain from the diet. Eggs are considered a complete protein because they provide all these essential amino acids in sufficient quantities. In contrast, plant-based sources like rice, beans, and wheat are typically incomplete proteins, lacking one or more essential amino acids.

Question 5

Which mineral is important for oxygen transport in the blood?

Accepted Answer

Iron

Answer

Iron is a vital component of hemoglobin, a protein found in red blood cells that is responsible for transporting oxygen from the lungs to all parts of the body. Without adequate iron, the body cannot produce enough healthy red blood cells, leading to iron-deficiency anemia and impaired oxygen delivery to tissues and organs.

(CNC) Certified Nutrition Coach Practice Test

(CNC) Certified Nutrition Coach Practice Test

CNC Fundamentals of Nutrition Science