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

Identify the phase of circulation which is represented in the diagram of the heart given below. Arrows indicate the contraction of the chambers shown.

Blood transferred to the right ventricle and left ventricle simultaneously.

Blood is transferred to the lungs for oxygenation and is pumped into various organs simultaneously.

Blood transferred to the right auricle and left auricle simultaneously.

Blood is received from the lungs after oxygenation and is received from various organs of the body.

2 / 15

What is the mode of nutrition in fungi?

Parasitic

Autotrophic

Heterotrophic/Saprophytic

3 / 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:

120/60 mm of Hg

160/80 mm of Hg

120/80 mm of Hg

180/80 mm of Hg

4 / 15

Carefully study the diagram of the human respiratory system with labels A, B, C, and D.

Select the option which gives correct identification and the main function and characteristic.

ii. Ribs: When we breathe out, ribs are lifted.

iii. Alveoli: Thin-walled sac-like structures for the exchange of gases.

iv. Diaphragm: It is pulled up when we breathe in.

i. Trachea: It is supported by bony rings for conducting inspired air.

5 / 15

In which of the following vertebrate groups, the heart does not pump oxygenated blood to different parts of the body?

Pisces and amphibians

Pisces only

Amphibians only

Amphibians and reptiles

6 / 15

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

Nostrils → pharynx → larynx → trachea → alveoli.

Alveoli → pharynx → larynx → trachea → nostrils.

Nostrils → trachea → pharynx → larynx → alveoli.

Alveoli → larynx → trachea → pharynx → nostrils.

7 / 15

Opening and closing of stomatal pore depend on:

Oxygen concentration around stomata

Atmospheric temperature

Carbon dioxide concentration around stomata

Water content in the guard cells

8 / 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.

This experimental setup is used to prove the essentiality of which of the following requirements of photosynthesis?

Carbon dioxide

Oxygen

Chlorophyll

Sunlight

9 / 15

The labeling for the slide of leaf peel showing stomata by a group of four students who made the diagram and tabulated the labels as follows:

life processes class 10 important questions

Choose the correct combination of plots provided in the following table.

	X	Y	Z
a.	Chloroplast	Guard cell	Stomatal pore
b.	Chloroplast	Stomatal pore	Guard cell
c.	Guard cell	Stomatal pore	Chloroplast
d.	Stomatal pore	Chloroplast	Guard cell

Also See: Acids, Bases, and Salts Class 10 Notes: Key Concepts and Definitions

10 / 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 only

i, ii, iii only

iv only

11 / 15

The given figure represents the structure of a nephron.

Which section of the nephron is responsible for concentrating the solute in the filtrate?

12 / 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.

i and iii

ii and iv

13 / 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 - a, ii - b, iii – c, iv - d

i - d, ii - a, iii – b, iv - c

i - b, ii - c, iii – d, iv - a

i - b, ii - d, iii – c, iv - a

14 / 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

A is false but R is true

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

A is true but R is false

15 / 15

Study the graph below that represents the blood test reports of an athlete just before and after a race.

Choose the correct combination of plots provided in the following table.

	Section of race	The concentration of lactic acid	Type of respiration
a.	A - B (sprint start)	Changing high to low	Changing from anaerobic to aerobic
b.	B - C (maintaining speed)	High to low	Anaerobic
c.	C - D (sprint finish)	High	Aerobic
d.	D - E (just after sprint finishing)	Low	Aerobic

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The average score is 57%

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Pos.	Name	Score	Duration	Points
1	Steve	100 %	30 seconds	15
2	Alobabu	100 %	35 seconds	15
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20	Xyz	93 %	48 seconds	14
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175	SHAURYA	33 %	8 minutes 40 seconds	5
176	Tanvi	33 %	9 minutes 2 seconds	5
177	dipanshu	33 %	9 minutes 38 seconds	5
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188	prakha pandit0007	27 %	2 minutes 47 seconds	4
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198	gujjar	27 %	7 minutes 8 seconds	4
199	Shreya	27 %	8 minutes 44 seconds	4
200	Tiwari	27 %	10 minutes 43 seconds	4

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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Life Processes Class 10 MCQ Quiz – Test Your Knowledge!

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