📚BIOLOGY COMMON QUESTIONS

1. Which of the following is NOT a function of the respiratory system?
(A) Gas exchange
(B) Regulation of body temperature
(C) Production of hormones
(D) Filtration of blood

2. The primary organ of gas exchange in the respiratory system is the:
(A) Lungs
(B) Heart
(C) Liver
(D) Kidneys

3. Which of the following structures is responsible for warming and moistening inhaled air?
(A) Nasal cavity
(B) Trachea
(C) Alveoli
(D) Pleura

4. The process of gas exchange in the lungs is known as:
(A) Diffusion
(B) Osmosis
(C) Filtration
(D) Active transport

5. Which of the following is a respiratory muscle that helps expand the chest cavity during inhalation?
(A) Diaphragm
(B) Intercostal muscles
(C) Abdominal muscles
(D) Both A and B

6. Which enzyme initiates the digestion of proteins in the stomach?
(A) Pepsin
(B) Amylase
(C) Lipase
(D) Maltase

7. The main function of the large intestine is to:
(A) Absorb nutrients
(B) Digest fats
(C) Absorb water
(D) Store bile

8. Which organ produces bile, a substance that aids in the digestion of fats?
(A) Liver
(B) Pancreas
(C) Gallbladder
(D) Small intestine

9. The process by which food is broken down into smaller molecules is called:
(A) Ingestion
(B) Digestion
(C) Absorption
(D) Elimination

10. Which of the following is NOT a type of digestive enzyme?
(A) Carbohydrase
(B) Protease
(C) Lipase
(D) Protease

11. The main function of the heart is to:
(A) Pump blood throughout the body
(B) Filter waste products from the blood
(C) Regulate body temperature
(D) Produce red blood cells

12. Which of the following blood vessels carries blood away from the heart?
(A) Arteries
(B) Veins
(C) Capillaries
(D) Lymph vessels

13. The exchange of oxygen and carbon dioxide between blood and body cells occurs in the:
(A) Arteries
(B) Veins
(C) Capillaries
(D) Lymphatics

14. Which of the following is NOT a type of blood cell?
(A) Red blood cell
(B) White blood cell
(C) Thrombocyte
(D) Neutrophil

15. The function of platelets is to:
(A) Carry oxygen
(B) Fight infection
(C) Clot blood
(D) Regulate blood pressure

16. The main function of the kidneys is to:
(A) Filter waste products from the blood
(B) Regulate blood pressure
(C) Produce hormones
(D) Digest food

17. The filtering unit of the kidney is the:
(A) Nephron
(B) Glomerulus
(C) Bowman's capsule
(D) Renal pelvis

18. Which of the following substances is NOT filtered by the kidneys?
(A) Glucose
(B) Urea
(C) Creatinine
(D) Sodium

19. The kidneys help regulate blood pressure by:
(A) Releasing hormones
(B) Adjusting salt and water balance
(C) Controlling blood flow
(D) Both B and C

20. Which of the following is a common kidney disease?
(A) Renal failure
(B) Diabetes
(C) Hypertension
(D) All of the above

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