Life Processes MCQ Set 3

Explore this diverse selection of multiple-choice questions (MCQs) designed for various examinations. Life Processes MCQ Set 3 focuses on essential aspects of the subject, ensuring comprehensive preparation across different categories and fields of study to enhance your knowledge and readiness. The right answers for each question is provided next to respective questions for your convenience, you can either attend the test or dirtectly access the right answers by clicking the show correct answer button

Each correct answer earns 1 mark, while each incorrect answer deducts 0.3 marks.

1. What is the main function of the liver?

A. Digestion

B. Excretion

C. Respiration

D. Circulation

2. Which organ stores bile?

A. Liver

B. Stomach

C. Pancreas

D. Gallbladder

3. What is the main component of blood plasma?

A. Red blood cells

B. White blood cells

C. Water

D. Platelets

4. Which hormone is produced by the pancreas?

A. Adrenaline

B. Thyroxine

C. Insulin

D. Estrogen

5. What is the role of hemoglobin in the blood?

A. Fight infections

B. Clot blood

C. Transport oxygen

D. Produce hormones

6. Which part of the digestive system secretes hydrochloric acid?

A. Mouth

B. Stomach

C. Small intestine

D. Large intestine

7. Which process involves the conversion of light energy into chemical energy?

A. Respiration

B. Photosynthesis

C. Transpiration

D. Fermentation

8. Which organ filters waste from the blood?

A. Liver

B. Heart

C. Kidney

D. Lungs

9. Which structure in the human body stores urine before excretion?

A. Ureter

B. Urethra

C. Bladder

D. Kidney

10. Which part of the brain controls involuntary actions?

A. Cerebrum

B. Cerebellum

C. Medulla

D. Hypothalamus

11. What is the role of the phloem in plants?

A. Transport water

B. Transport minerals

C. Transport food

D. Transport oxygen

12. What is the main function of the small intestine?

A. Digestion of food

B. Absorption of nutrients

C. Storage of waste

D. Secretion of bile

13. What is the primary role of the heart?

A. Digestion

B. Respiration

C. Circulation

D. Excretion

14. Which part of the plant absorbs water and minerals?

A. Leaves

B. Stem

C. Roots

D. Flowers

15. Which process is responsible for the exchange of oxygen and carbon dioxide in the lungs?

A. Respiration

B. Digestion

C. Excretion

D. Circulation

16. What is the role of enzymes in digestion?

A. Speed up chemical reactions

B. Slow down chemical reactions

C. Transport nutrients

D. Absorb water

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