Life Processes Class 10 MCQ Quiz – Test Your Knowledge!

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Are you preparing for CBSE Class 10 Science Chapter 6 - Life Processes? This interactive MCQ quiz will help you revise important concepts, key definitions, and exam-focused questions in an engaging way!

About the Quiz

Chapter Name: Life Processes
Subject: Class 10 Science (Biology)
Question Type: Multiple Choice Questions (MCQs)
Difficulty Level: Concept-Based & Exam-Oriented
Leaderboard: Yes (Check Your Rank!)

Why Take This Quiz?

✔ Covers all major topics like nutrition, respiration, transportation, and excretion
✔ Includes competency-based & high-order thinking (HOTs) questions
✔ Ideal for quick revision before CBSE board exams

Click Below to Start the Quiz!

Chapter 5 - Life Processes

1 / 15

Opening and closing of stomatal pore depend on:

Carbon dioxide concentration around stomata

Oxygen concentration around stomata

Water content in the guard cells

Atmospheric temperature

2 / 15

Observe the diagram of the human digestive system.

Match the labeling referred to in column I and correlate it with the function in column II.

Column I	Column II
i.	a. The length of this depends on the food the organism eats.
ii.	b. Initial phase of starch digestion.
iii.	c. Increases the efficiency of lipase enzyme action.
iv.	d. This is the site of the complete digestion of carbohydrates, proteins, and fats.

i - b, ii - c, iii – d, iv - a

i - a, ii - b, iii – c, iv - d

i - d, ii - a, iii – b, iv - c

i - b, ii - d, iii – c, iv - a

3 / 15

What is the mode of nutrition in fungi?

Autotrophic

Heterotrophic/Saprophytic

Parasitic

4 / 15

The characteristic processes observed in anaerobic respiration are:

Presence of oxygen

Release of carbon dioxide

Release of energy

Release of lactic acid

ii, iii, iv only

i, ii, iii only

iv only

i, ii only

5 / 15

Study the picture given above and choose the correct combination of plots provided in the following table:

	X	Process Used	Function
a.	Dialyzing pump	Filtration	To draw blood from the body and send it to the dialyzer.
b.	Dialysate	Osmosis	To add fluid to the blood.
c.	Blood thinner	Clotting	To remove the clots from the blood.
d.	Dialyser	Diffusion	To remove the excess wastes and fluid from the blood.

6 / 15

Assertion (A): Capillaries have walls that are just one cell thick.

Reason (R): The exchange of material between the blood and surrounding cells takes place across the capillaries.

Both A and R are true and R is the correct explanation of A

Both A and R are true and R is not the correct explanation of A

A is false but R is true

A is true but R is false

7 / 15

Which of the following statement(s) is(are) true about human heart?

Left atrium receives oxygenated blood from different parts of the body while the right atrium receives deoxygenated blood from the lungs.

Left ventricle pumps oxygenated blood to different body parts while the right ventricle pumps deoxygenated blood to the lungs.

Left atrium transfers oxygenated blood to the right ventricle which sends it to different parts of the body.

Right atrium receives deoxygenated blood from different parts of the body while the left ventricle pumps oxygenated blood to different parts of the body.

ii and iv

i and iii

8 / 15

The respiratory route of air in the respiratory tract of humans is:

Nostrils → trachea → pharynx → larynx → alveoli.

Alveoli → pharynx → larynx → trachea → nostrils.

Alveoli → larynx → trachea → pharynx → nostrils.

Nostrils → pharynx → larynx → trachea → alveoli.

9 / 15

The figure shown below represents an activity to prove the requirements for photosynthesis. During this activity, two healthy potted plants were kept in the dark for 72 hours. After 72 hours, KOH is kept in the watch glass in setup X and not in setup Y. Both these setups are airtight and have been kept in light for 6 hours. Then, the Iodine test is performed with one leaf from each of the two plants X and Y.

experiment to prove that carbon dioxide is necessary for photosynthesis

The function of KOH is to absorb

Moisture

Sunlight

Carbon dioxide

Oxygen

10 / 15

The doctor measured Ravi’s blood pressure and said it is normal now. The range of Ravi’s blood pressure (systolic/diastolic) is likely to be:

180/80 mm of Hg

120/80 mm of Hg

120/60 mm of Hg

160/80 mm of Hg

11 / 15

Study the table below and select the row that has the incorrect information.

	Aerobic	Anaerobic
a. Location	Cytoplasm	Mitochondria
b. End product	CO₂ and H₂O	Ethanol and CO₂
c. Amount of ATP	High	Low
d. Oxygen	Needed	Not needed

12 / 15

In the given transverse section of the leaf identify the layer of cells where maximum photosynthesis occurs.

II, III

III, IV

I, II

I, IV

13 / 15

Generally food is broken and absorbed within the body of organisms. In which of the following organisms is it done outside the body?

Amoeba

Mushroom

Paramoecium

Lice

14 / 15

Look at the diagram below carefully.

life processes class 10 important questions

Identify the process taking place at Z.

Transpiration

Photosynthesis

Reproduction

Translocation

15 / 15

Lime water turns cloudy in the presence of a gas which is a by-product of respiration.

Shown below are four setups kept in sunlight for 24 hours.

life processes class 10 important questions and answers

In which setup is lime water expected to be the cloudiest?

Setup Q

Setup R

Setup S

Setup P

Your score is

The average score is 59%

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1	Steve	100 %	30 seconds	15
2	Alobabu	100 %	35 seconds	15
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Key Topics Covered in the Quiz

✔ Autotrophic & Heterotrophic Nutrition
✔ Human Digestive System
✔ Respiration: Aerobic & Anaerobic
✔ Circulatory System & Blood Flow in Humans
✔ Excretion in Humans & Plants

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Also See: CBSE Class 10 Science 2024-25 Official Sample Paper: Detailed Solutions with NCERT Book References

Life Processes Class 10 MCQ Quiz – Test Your Knowledge!

About the Quiz

Why Take This Quiz?

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About the Quiz

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