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. The contraction and expansion movement of the walls of the food pipe is called

translocation

transpiration

peristaltic movement

digestion

2. The part of the digestive system where no digestion takes place is

ileum

stomach

mouth

oesophagus

3. ASSERTION: The opening and closing of the pore is a function of the guard cells.
REASON: Stomatal pores are the site for exchange of gases by diffusion.

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

4. When air is blown from the mouth into a test tube containing lime water, the lime water turned milky due to the presence of

oxygen

carbon dioxide

nitrogen

water vapour

5. Name a circulatory fluid in the human body other than blood.

Platelets

RBC

Lymph

Plasma

6. ASSERTION: Saliva contains pepsin enzyme.
REASON: Pepsin digests lipids.

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

7. The site of photosynthesis in the cells of a leaf is

chloroplast

mitochondria

cytoplasm

protoplasm

8. A gland not associated with the alimentary canal is

liver

salivary glands

pancreas

adrenal

9. The exit of unabsorbed food material is regulated by

liver

anus

small intestine

anal sphincter

10. Assertion: Human heart does not allow mixing of oxygen reach blood with carbon dioxide reach blood.
Reason: Human heart has different chambers.

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

11. A biochemical compound that readily combines with oxygen and distributes it throughout the human body is

water

urea

hemoglobin

acetylcholine

12. Which process converts light energy to chemical energy ?

Respiration

photosynthesis

transpiration

transportation of water and minerals

13. Which is the first enzyme to mix with food i the digestive tract?

Pepsin

Cellulose

Amylase

Trypsin

14. 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

15. Name the pores in a leaf through which the respiratory exchange of gases takes place.

Lenticels

Vacuoles

Xylem

Stomata

16. 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

17. ASSERTION: In human beings, the respiratory pigment is haemoglobin.
REASON: It is a type of protein which has high-affinity carbon dioxide.

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. Woody plants carry gaseous exchange through

root hair

stem hair

Lenticels

epidermal cells

19. 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

20. The internal (cellular) energy reservoir in autotrophs is:

glycogen

protein

starch

fatty acid

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