science quiz

1. Which organ is responsible for pumping blood throughout the body?

• A) Liver

• B) Heart

• C) Kidney

• D) Lungs

Answer explanation

(Correct Answer: B) Heart

2. Where are red blood cells primarily produced?

• A) Liver

• B) Bone marrow

• C) Pancreas

• D) Spleen

3. What is the function of the lungs in the human body?

• A) Pump blood

• B) Filter waste

• C) Exchange gases

• D) Digest food

4. What is the main function of the kidneys?

• A) Pump blood

• B) Produce hormones

• C) Filter waste from blood

• D) Aid digestion

5. Which part of the brain is responsible for voluntary movement and coordination?

• A) Cerebellum

• B) Medulla oblongata

• C) Hypothalamus

• D) Cerebrum

6. Where is insulin produced in the body?

• A) Pancreas

• B) Liver

• C) Gallbladder

• D) Stomach

7. Which part of the eye is responsible for focusing light onto the retina?

• A) Cornea

• B) Iris

• C) Lens

• D) Retina

8. What is the function of the small intestine in the digestive system?

• A) Absorb nutrients

• B) Produce bile

• C) Store waste

• D) Regulate body temperature

9. Which bone protects the brain?

• A) Femur

• B) Skull

• C) Rib

• D) Sternum

10. What is the purpose of the diaphragm in the respiratory system?

• A) Pump blood

• B) Filter air

• C) Aid in speech

• D) Assist in breathing