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.

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Life Processes Class 10 MCQ Online Test

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

water

urea

hemoglobin

acetylcholine

2. The extracellular fluid released from the capillaries is:

serum

plasma

lymph

mucus

3. In amoeba, food is digested in the:

food vacuole

mitochondria

pseudopodia

chloroplast

4. Identify the correct path of urine in the human body

Kidney → urinary bladder → urethra → ureter

Urinary bladder → ureter → kidney → urethra

Kidney → ureter → urethra → urinary bladder

Kidney → ureter → urinary bladder → urethra

5. Lack of oxygen in muscles often leads to cramps among cricketers. This results due to

conversion of pyruvate to ethanol

conversion of pyruvate to glucose

non-conversion of glucose to pyruvate

conversion of pyruvate to lactic acid

6. 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

7. The mode of nutrition found in fungi is:

Parasitic nutrition

Holozoic nutrition

Autotrophic nutrition

Saprotrophic nutrition

8. Which is the correct sequence of body parts in the human alimentary canal?

Mouth → stomach → small intestine → large intestine → oesophagus

Mouth → oesophagus → stomach → small intestine → large intestine

Mouth → stomach → oesophagus → smallintestine → large intestine

Mouth → oesophagus → stomach → large intestine → small intestine

9. Main site of photosynthesis

Leaf

Stem

Chloroplast

Guard cells

10. The respiratory pigment in human beings is

carotene

chlorophyll

hemoglobin

mitochondria

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

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

12. Blood consist of what fluid medium?

Lymph

Platelets

Plasma

None of these

13. Autotrophic organisms include

bacteria and virus

bacteria and fungi

green plants and some bacteria

green plants and all bacteria

14. Proteins after digestion are converted into

Carbohydrates

Small globules

Amino acids

starch

15. Large intestine in man mainly carries out

absorption

assimilation

digestion of fats

digestion of carbohydrates

16. Amoeba shows following kind of nutrition

autotrophic

holozoic

saprotrophic

parasitic

17. Which of the following is incorrect statement:

organism grow with time

Organisms must repair and maintain their structure

The movement of molecules does not take place among cells

Energy is essential for life processes

18. 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

19. Woody plants carry gaseous exchange through

root hair

stem hair

Lenticels

epidermal cells

20. Assertion: Veins have thin walls to collect blood from different organs.
Reason: Blood in veins are not under pressure.

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

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