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Food Culture and Human Physiology

Nutrition Science

An exploration of the scientific relationship between nutrition, human body functions, and health outcomes.

biology health nutrition human-physiology

18 Questions Medium Ages 5+ Oct 11, 2026

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About this Study Set

This study set covers Nutrition Science through 18 practice questions. An exploration of the scientific relationship between nutrition, human body functions, and health outcomes. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 18 questions from the Food Culture and Human Physiology study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which organ is primarily responsible for the detoxification of substances consumed through diet?

A Kidneys
B Liver
C Pancreas
D Gallbladder

2 What is the primary function of dietary fiber in the human digestive system?

A Providing immediate glucose
B Reducing blood clotting
C Assisting in bowel regularity
D Synthesizing vitamin C

3 Which mineral is essential for the production of hemoglobin, the protein in red blood cells that carries oxygen?

A Iron
B Calcium
C Magnesium
D Potassium

4 What does the Body Mass Index (BMI) primarily measure?

A Total body muscle percentage
B Relationship between weight and height
C Metabolic rate
D Bone density

5 Which vitamin is synthesized by the human body through exposure to ultraviolet B (UVB) radiation from the sun?

A Vitamin A
B Vitamin B12
C Vitamin D
D Vitamin K

6 What is the main role of insulin in the human body?

A Breaking down proteins
B Regulating blood glucose levels
C Stimulating digestion
D Filtering waste

7 Which nutrient is considered the primary source of energy for the human brain?

A Glucose
B Protein
C Fiber
D Saturated fat

8 What is the recommended daily intake of sodium for adults to reduce the risk of hypertension, according to the WHO?

A Less than 2 grams
B Exactly 5 grams
C More than 10 grams
D 8 to 12 grams

9 Which type of fat is generally associated with an increased risk of cardiovascular disease?

A Monounsaturated fat
B Polyunsaturated fat
C Trans fat
D Omega-3 fatty acids

10 What is the primary function of electrolytes like sodium and potassium in the body?

A Energy storage
B Fluid balance and nerve signaling
C Bone strengthening
D Red blood cell production

11 Which enzyme in the saliva begins the chemical digestion of carbohydrates?

A Lipase
B Amylase
C Protease
D Pepsin

12 What is the primary biological purpose of consuming essential amino acids?

A To build and repair tissues
B To provide long-term energy storage
C To lower cholesterol levels
D To increase skin elasticity

13 The conversion of food into energy within the cells is known as what?

A Digestion
B Metabolism
C Absorption
D Excretion

14 Which organ produces bile to assist in the digestion and absorption of fats?

A Liver
B Stomach
C Small intestine
D Large intestine

15 What is the main health benefit of consuming fermented foods like yogurt or kimchi?

A Providing high-dose vitamin B12
B Enhancing gut microbiome diversity
C Reducing the need for sleep
D Eliminating the need for water

16 Which condition is caused by a chronic deficiency of vitamin C?

A Rickets
B Scurvy
C Anemia
D Goiter

17 What happens to excess protein that is consumed by the body and not used for tissue repair?

A It is converted into muscle tissue automatically
B It is stored as fat or excreted
C It is converted into vitamin D
D It is stored in the liver as glycogen

18 Which nutrient is vital for the proper function of the human thyroid gland?

A Iodine
B Zinc
C Copper
D Selenium

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