Life Processes Class 10 MCQ with Answers

Welcome to biology life processes class 10 MCQ online test. In this online test, you would find the single choice type questions along with assertion reason type questions. This test is strictly according to the class 10 science syllabus as proposed by CBSE and NCERT books.

Take this online quiz to test your knowledge and your exam preparation.

Life Processes Class 10 MCQ Online Test

General Instructions

Your test contains multiple-choice questions with only one answer-type question. There are a total of 20 questions
This is a 20 min test. Please make sure you complete it in the stipulated time
You can finish this test any time using the 'Submit' button.

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1. Name the substances whose build up in the muscles during vigorous physical exercise may cause cramps?

Ethanol + Carbon dioxide + Energy

Lactic acid + Energy

Carbon dioxide + Water + Energy

Pyruvate

2. Temporary finger like extensions on amoeba are called

Cell membrane

Cell wall

Pseudopodia

Cilia

3. Blood consist of what fluid medium?

Lymph

Platelets

Plasma

None of these

4. Glycolysis process occurs in which part of the cell?

Cytoplasm

Nucleus

Mitochondria

Chloroplast

5. ASSERTION: The purpose of making urine is to filter out undigested food from intestine.
REASON: Kidneys filter the waste and produce urine.

If both assertion and reason are CORRECT and the reason is the CORRECT explanation of the assertion.

If both assertion and reason are CORRECT, but the reason is NOT THE CORRECT explanation of the assertion.

If the assertion is CORRECT, but the reason is INCORRECT

If the assertion is INCORRECT, but the reason is CORRECT

If both assertion and reason are INCORRECT

6. The part where the exchange of gases occurs during respiration is:

Lungs and larynx

Alveoli and throat

Throat and lungs

Alveoli and capillaries

7. Assertion: When air is passed through lime water, lime water turns milky.
Reason: Air contains 78% nitrogen and 21% oxygen

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

Assertion is true but Reason is false

Assertion is false but Reason is true

Both Assertion and Reason are false

8. In amoeba, food is digested in the:

food vacuole

mitochondria

pseudopodia

chloroplast

9. Lipase acts on

Amino acids

Fats

Carbohydrates

All of these

10. Which part of the nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts, and water into the blood capillaries?

Tubule

Glomerulus

Bowman’s capsule

Ureter

11. The filtration units of kidneys are called

Ureter

Urethra

nephrons

Neurons

12. ASSERTION: Arteries are thick-walled and elastic in nature.
REASON: Arteries have to transport blood away from the heart.

If both assertion and reason are CORRECT and the reason is the CORRECT explanation of the assertion.

If both assertion and reason are CORRECT, but the reason is NOT THE CORRECT explanation of the assertion.

If the assertion is CORRECT, but the reason is INCORRECT

If the assertion is INCORRECT, but the reason is CORRECT

If both assertion and reason are INCORRECT

13. ASSERTION: Molecular movements are needed for life.
REASON: Body structures made up of these molecules need continuous repair and maintenance.

If both assertion and reason are CORRECT and the reason is the CORRECT explanation of the assertion.

If both assertion and reason are CORRECT, but the reason is NOT THE CORRECT explanation of the assertion.

If the assertion is CORRECT, but the reason is INCORRECT

If the assertion is INCORRECT, but the reason is CORRECT

If both assertion and reason are INCORRECT

14. The movement of food in phloem is called:

transpiration

translocation

respiration

evaporation

15. A blood vessel that pumps the blood from the heart to the entire body:

artery

capillary

Vein

Haemoglobin

16. ASSERTION: The inner lining of the small intestine has numerous finger-like projections called villi.
REASON: The villi increase the surface area for absorption.

If both assertion and reason are CORRECT and the reason is the CORRECT explanation of the assertion.

If both assertion and reason are CORRECT, but the reason is NOT THE CORRECT explanation of the assertion.

If the assertion is CORRECT, but the reason is INCORRECT

If the assertion is INCORRECT, but the reason is CORRECT

If both assertion and reason are INCORRECT

17. ASSERTION: Diffusion does not meet high energy requirements of multi-cellular organisms.
REASON: Diffusion is a fast process but only occurs at the surface of the body.

If both assertion and reason are CORRECT and the reason is the CORRECT explanation of the assertion.

If both assertion and reason are CORRECT, but the reason is NOT THE CORRECT explanation of the assertion.

If the assertion is CORRECT, but the reason is INCORRECT

If the assertion is INCORRECT, but the reason is CORRECT

If both assertion and reason are INCORRECT

18. In a closed circulatory system, blood is completely enclosed within

vessels

heart

skeleton

sinuses

19. Which of the following equations is the summary of photosynthesis?

6CO₂ + 12H₂O → C₆H₁₂O₆ + 6O₂ + 6H₂O

6CO₂ + H₂O + Sunlight → C₆H₁₂O₆ + O₂ + 6H₂O

6CO₂ + 12H₂O + Chlorophyll + Sunlight → C₆H₁₂O₆ + 6O₂ + 6H₂O

6CO₂ + 12H₂O + Chlorophyll + Sunlight → C₆H₁₂O₆ + 6CO₂ + 6H₂O

20. Which plant tissue transports water and minerals from the roots to the leaf

Xylem

Phloem

Parenchyma

Collenchyma

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