Question 1

What is the main role of lipase in the digestive system?

Accepted Answer

Lipase breaks down fats into fatty acids and glycerol.

Answer

Lipase produces bile for fat emulsification.

Answer

Lipase converts starch into sugars.

Answer

Lipase breaks down proteins into amino acids.

Question 2

Which organ in the digestive system produces bile?

Accepted Answer

Liver

Answer

Pancreas

Answer

Stomach

Answer

Gallbladder

Question 3

What is the function of the stomach acid hydrochloric acid?

Accepted Answer

It kills bacteria and provides an environment for proteases to work.

Answer

It stores bile.

Answer

It absorbs nutrients into the bloodstream.

Answer

It emulsifies fats.

Question 4

Which part of the cardiovascular system carries oxygenated blood from the lungs back to the heart?

Accepted Answer

Pulmonary vein

Answer

Vena cava

Answer

Pulmonary artery

Answer

Aorta

Question 5

What is the main function of white blood cells?

Accepted Answer

They are part of the immune system and help fight infections.

Answer

They transport nutrients to cells.

Answer

They help in blood clotting.

Answer

They carry oxygen in the blood.

Question 6

What is the role of the diaphragm in the respiratory system?

Accepted Answer

It moves up and down to bring air in and out of the lungs.

Answer

It filters impurities from the air.

Answer

It exchanges gases with the blood.

Answer

It protects the lungs from injury.

Question 7

What process allows water to move through the xylem of a plant?

Accepted Answer

Transpiration

Answer

Photosynthesis

Answer

Respiration

Answer

Translocation

Question 8

What part of the leaf is primarily involved in photosynthesis?

Accepted Answer

Palisade mesophyll

Answer

Xylem

Answer

Epidermis

Answer

Stomata

Question 9

Which part of the digestive system is responsible for nutrient absorption?

Accepted Answer

small intestine

Answer

stomach

Answer

rectum

Answer

large intestine

Question 10

What role do the intercostal muscles play in the respiratory system?

Accepted Answer

They help expand the ribcage

Answer

They regulate temperature

Answer

They carry oxygen

Answer

They pump blood

Question 11

What is the role of the phloem in plants?

Accepted Answer

To transport food and nutrients

Answer

To transport water

Answer

To provide structural support

Answer

To capture sunlight

Question 12

What happens to enzymes at high temperatures?

Accepted Answer

They get denatured and lose their function

Answer

They work more efficiently

Answer

They change color

Answer

They reproduce

Question 13

What role do platelets play in the blood?

Accepted Answer

Clotting

Answer

Nutrient delivery

Answer

Oxygen transport

Answer

Immune response

Question 14

What structure in the respiratory system is primarily responsible for gas exchange?

Accepted Answer

Alveoli

Answer

Diaphragm

Answer

Bronchi

Answer

Trachea

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