Nutrition and Digestive System Quiz

What is the primary function of carbohydrates in the body?

• Regulate body temperature

• Build tissues

• Aid in digestion

• Supply energy

Which vitamin is essential for night vision?

• Vitamin D

• Vitamin A

• Vitamin B

• Vitamin C

What is the deficiency disease caused by a lack of Vitamin C?

• Rickets

• Kwashiorkor

• Goitre

• Scurvy

Which mineral is necessary for the formation of hemoglobin?

• Iron

• Calcium

• Sodium

• Potassium

What is the main role of bile in digestion?

• Emulsification of fats

• Digestion of proteins

• Absorption of nutrients

• Production of enzymes

What is the process of breaking down food into simpler molecules called?

• Digestion

• Assimilation

• Defecation

• Absorption

Which part of the digestive system is responsible for water reabsorption?

• Small intestine

• Stomach

• Oesophagus

• Large intestine

What is the calorific value of fats per gram?

• 39 kJ/g

• 18 kJ/g

• 4.2 kJ/g

• 17 kJ/g

Which enzyme digests starch into maltose?

• Protease

• Amylase

• Lipase

• Rennin

What is the main cause of constipation?

• Low carbohydrate intake

• High protein intake

• Excessive fiber

• Lack of water