Human Biology and Nutrition Quiz

Test your knowledge of nutrition with these questions on organs, vitamins, hormones, and bodily functions. How much do you know about human biology?

#1

Which organ produces insulin in the human body?

Liver
Pancreas
Kidneys
Heart
#2

What is the recommended daily intake of water for an average adult?

1 liter
2 liters
3 liters
4 liters
#3

Which of the following is a water-soluble vitamin?

Vitamin A
Vitamin C
Vitamin D
Vitamin K
#4

What is the function of the respiratory system?

Pump blood
Exchange gases (oxygen and carbon dioxide)
Digest food
Filter toxins from the blood
#5

What is the main function of the endocrine system?

Produce digestive enzymes
Control hormone levels
Pump blood
Exchange gases in the lungs
#6

What is the primary function of red blood cells?

Transport oxygen
Digest food
Produce antibodies
Produce insulin
#7

Which vitamin is essential for calcium absorption in the body?

Vitamin A
Vitamin C
Vitamin D
Vitamin K
#8

Which enzyme is responsible for breaking down proteins in the stomach?

Lipase
Amylase
Pepsin
Trypsin
#9

What is the role of bile in digestion?

Emulsify fats
Produce insulin
Absorb nutrients
Produce enzymes
#10

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

Digestion
Blood clotting
Filtration of waste products
Insulin production
#11

Which mineral is essential for the formation of healthy bones and teeth?

Iron
Zinc
Calcium
Magnesium
#12

Which vitamin is known as the 'sunshine vitamin'?

Vitamin A
Vitamin C
Vitamin D
Vitamin K
#13

What is the main function of the small intestine in the digestive system?

Absorption of nutrients
Storage of bile
Production of digestive enzymes
Elimination of waste
#14

Which hormone is responsible for regulating blood sugar levels?

Insulin
Thyroxine
Estrogen
Testosterone
#15

Which of the following nutrients provides the highest energy per gram?

Proteins
Carbohydrates
Fats
Vitamins
#16

In which part of the digestive system does most nutrient absorption occur?

Stomach
Large intestine
Small intestine
Esophagus
#17

What is the main function of white blood cells in the immune system?

Produce antibodies
Transport oxygen
Clot blood
Break down food
#18

Which hormone is responsible for the regulation of metabolism?

Insulin
Thyroxine
Adrenaline
Estrogen
#19

Which component of blood is responsible for clotting?

Red blood cells
White blood cells
Platelets
Plasma

Sign In to view more questions.

Sign InSign Up

Quiz Questions with Answers

Forget wasting time on incorrect answers. We deliver the straight-up correct options, along with clear explanations that solidify your understanding.

Test Your Knowledge

Craft your ideal quiz experience by specifying the number of questions and the difficulty level you desire. Dive in and test your knowledge - we have the perfect quiz waiting for you!

Other Quizzes to Explore