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.

1. Lipase acts on

Fats

Amino acids

Carbohydrates

All of these

2. Choose the form in which most of the plants absorb nitrogen from the atmosphere ?

amino acids

proteins

atmospheric nitrogen

nitrates and nitrites

3. The small pores present of leaf’s surface are called

Chlorophyll

None of these

Stomata

Guard cells

4. What are the products obtained by anaerobic respiration in plants?

Lactic acid + Energy

Ethanol + Carbon dioxide + Energy

Pyruvate

Carbon dioxide + Water + Energy

5. Proteins after digestion are converted into

Amino acids

Small globules

Carbohydrates

starch

6. ASSERTION: Rings of cartilage are present in the throat.
REASON: These ensure that the air-passage does not collapse.

If the assertion is CORRECT, but the reason is INCORRECT

If both assertion and reason are INCORRECT

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 INCORRECT, but the reason is CORRECT

7. Match column I with column II and choose the correct option from the options given below in column II

Salivary amylase	Muscles Unselect Cuscuta Unselect Carbon dioxide Unselect Nephron Unselect Starch Unselect Protein Unselect Blood Unselect Fatty acids and glycerol Unselect Waxy coating Unselect
Lactic acid	Muscles Unselect Cuscuta Unselect Carbon dioxide Unselect Nephron Unselect Starch Unselect Protein Unselect Blood Unselect Fatty acids and glycerol Unselect Waxy coating Unselect
Cuticle	Muscles Unselect Cuscuta Unselect Carbon dioxide Unselect Nephron Unselect Starch Unselect Protein Unselect Blood Unselect Fatty acids and glycerol Unselect Waxy coating Unselect
Trypsin	Muscles Unselect Cuscuta Unselect Carbon dioxide Unselect Nephron Unselect Starch Unselect Protein Unselect Blood Unselect Fatty acids and glycerol Unselect Waxy coating Unselect
Heterotrophic	Muscles Unselect Cuscuta Unselect Carbon dioxide Unselect Nephron Unselect Starch Unselect Protein Unselect Blood Unselect Fatty acids and glycerol Unselect Waxy coating Unselect
Potassium hydroxide	Muscles Unselect Cuscuta Unselect Carbon dioxide Unselect Nephron Unselect Starch Unselect Protein Unselect Blood Unselect Fatty acids and glycerol Unselect Waxy coating Unselect
Lipase	Muscles Unselect Cuscuta Unselect Carbon dioxide Unselect Nephron Unselect Starch Unselect Protein Unselect Blood Unselect Fatty acids and glycerol Unselect Waxy coating Unselect
Filtration unit	Muscles Unselect Cuscuta Unselect Carbon dioxide Unselect Nephron Unselect Starch Unselect Protein Unselect Blood Unselect Fatty acids and glycerol Unselect Waxy coating Unselect
Connective tissue	Muscles Unselect Cuscuta Unselect Carbon dioxide Unselect Nephron Unselect Starch Unselect Protein Unselect Blood Unselect Fatty acids and glycerol Unselect Waxy coating Unselect

8. The exit of unabsorbed food material is regulated by

small intestine

anal sphincter

liver

anus

9. Normal blood pressure (systolic/diastolic) is

120/80 mm of Hg

180/80 mm of Hg

160/80 mm of Hg

120/60 mm of Hg

10. The movement of food in phloem is called:

evaporation

translocation

transpiration

respiration

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

RBC

Plasma

Lymph

Platelets

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

Tubule

Bowman’s capsule

Ureter

Glomerulus

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

nitrogen

water vapour

carbon dioxide

oxygen

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 INCORRECT

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 CORRECT, but the reason is NOT THE CORRECT explanation of the assertion.

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

15. The process of digestion is completed by:

Intestinal juice

pepsin

trypsin

bile juice

16. Photosynthesis is a

Catabolic process

Photochemical process

Parabolic process

Amphibolic process

17. The chlorophyll in photosynthesis is used for

Reduction of CO₂

Breaking down water molecule

No function

Absorbing light

18. 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 the assertion is INCORRECT, but the reason is CORRECT

If the assertion is CORRECT, but the reason is INCORRECT

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

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

If both assertion and reason are INCORRECT

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

protein

glycogen

starch

fatty acid

20. Trachea do not collapse when there is not much air because they are:

having cartilaginous rings