Biology Digestive Sysrem

What are carbohydrates used for in the body?

• B. Energy in respiration

• A. Insulation

• C. Structure and protection

• D. Transporting oxygen

Which vitamin helps in the uptake of calcium during digestion?

• D. Vitamin D

• C. Vitamin C

• B. Vitamin B

• A. Vitamin A

What is the role of iron in the body?

• A. Insulation

• D. Maintaining healthy bones

• C. Transporting oxygen

• B. Energy production

What is the function of bile in the digestive system?

• D. Absorbs water

• A. Neutralizes stomach acid

• B. Emulsifies fats

• C. Breaks down proteins

What causes dental decay?

• A. Lack of brushing

• B. Bacteria producing acidic substances

• C. Consuming too much water

• D. Enamel decay

What is the main function of the large intestine?

• D. Producing enzymes

• C. Absorbing water

• B. Digesting food

• A. Absorbing nutrients

Which enzyme breaks down starch into simpler sugars?

• A. Protease

• B. Lipase

• D. Maltase

• C. Amylase

What is the purpose of villi in the small intestine?

• A. Absorb nutrients

• B. Produce enzymes

• C. Break down fats

• D. Neutralize stomach acid

What is the result of a lack of vitamin C in the diet?

• B. Scurvy

• C. Anaemia

• A. Rickets

• D. Kwashiorkor

How does cholera cause diarrhoea?

• D. By blocking enzyme action

• C. By neutralizing stomach acid

• A. By increasing water absorption

• B. By releasing toxic proteins