Life Processes Class 10 MCQ Quiz – Test Your Knowledge!

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

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Chapter 5 - Life Processes

1 / 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.

The function of KOH is to absorb

Carbon dioxide

Oxygen

Moisture

Sunlight

2 / 15

Which of the following statements shows the correct results of the Iodine test performed on the leaf from plant X and Y respectively?

Blue-black color would be obtained on the leaf of plant X and no change in color on the leaf of plant Y.

Blue-black color would be obtained on the leaf of plant Y and no change in color on the leaf of plant X.

Red color would be obtained on the leaf of plant X and brown color on the leaf of plant Y.

Red color would be obtained on the leaf of plant Y and brown color on the leaf of plant X.

3 / 15

The given figure represents the structure of a nephron.

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

4 / 15

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

Paramoecium

Mushroom

Lice

Amoeba

5 / 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.

A is true but R is false

A is false but R is true

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

6 / 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

7 / 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 - b, ii - d, iii – c, iv - a

i - d, ii - a, iii – b, iv - c

i - a, ii - b, iii – c, iv - d

8 / 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

9 / 15

The excretory system of human beings includes

A pair of kidneys, a pair of ureters, a urinary bladder, and a urethra

A pair of kidneys, a pair of ureters, a pair of urinary bladders, and a urethra

A pair of kidneys, a pair of urinary bladders, a ureter, and a urethra

A kidney, a ureter, a urinary bladder, and a urethra

10 / 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 P

Setup S

Setup R

11 / 15

Which of the following steps can be followed for making the apparatus airtight?

Placing the plants on a glass plate

Using a suction pump

Applying vaseline to seal the bottom of the jar

Creating a vacuum

i and iii

ii and iv

i and ii

ii and iii

12 / 15

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

Oxygen

Chlorophyll

Carbon dioxide

Sunlight

13 / 15

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

Amphibians and reptiles

Amphibians only

Pisces and amphibians

Pisces only

14 / 15

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

III, IV

I, II

II, III

I, IV

15 / 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

Your score is

The average score is 60%

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Pos.	Name	Score	Duration	Points
1	A	100 %	47 seconds	15
2	A	100 %	50 seconds	15
3	harsha	100 %	1 minutes 7 seconds	15
4	atharvv	100 %	1 minutes 23 seconds	15
5	harsha	100 %	1 minutes 33 seconds	15
6	varun	100 %	1 minutes 40 seconds	15
7	D	100 %	2 minutes 3 seconds	15
8	varun	100 %	2 minutes 7 seconds	15
9	s	100 %	2 minutes 12 seconds	15
10	Pritha	100 %	2 minutes 25 seconds	15
11	sparsh goel	100 %	3 minutes 38 seconds	15
12	varun	100 %	3 minutes 49 seconds	15
13	varun	100 %	3 minutes 59 seconds	15
14	Mayank	100 %	6 minutes 7 seconds	15
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16	Varun	100 %	12 minutes 52 seconds	15
17	harsha	93 %	1 minutes 5 seconds	14
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19	A	93 %	1 minutes 16 seconds	14
20	harsha	93 %	1 minutes 26 seconds	14
21	Prakash	93 %	1 minutes 38 seconds	14
22	atharvv	93 %	1 minutes 39 seconds	14
23	S	93 %	2 minutes 16 seconds	14
24	Pritha	93 %	2 minutes 39 seconds	14
25	varun	93 %	2 minutes 53 seconds	14
26	yy	93 %	3 minutes 30 seconds	14
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28	john hollock	93 %	4 minutes 53 seconds	14
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31	Pritha	93 %	7 minutes 15 seconds	14
32	Lana Del Ray	93 %	10 minutes 37 seconds	14
33	sparsh goel	93 %	11 minutes 34 seconds	14
34	TOKYO	93 %	34 minutes 57 seconds	14
35	A	87 %	1 minutes 12 seconds	13
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37	dishanth	87 %	2 minutes 8 seconds	13
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45	Reproduction in organisms	87 %	5 minutes 16 seconds	13
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60	.	87 %	13 minutes 22 seconds	13
61	Manasa.M	87 %	14 minutes 33 seconds	13
62	A	80 %	56 seconds	12
63	Prem Prakash	80 %	3 minutes 17 seconds	12
64	RITURAJ Rizz Agian	80 %	3 minutes 24 seconds	12
65	Uu	80 %	3 minutes 25 seconds	12
66	Pritha	80 %	3 minutes 29 seconds	12
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68	NIRUN	80 %	3 minutes 38 seconds	12
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70	Maitri	80 %	4 minutes 43 seconds	12
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80	Anya	80 %	7 minutes 5 seconds	12
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82	why	80 %	7 minutes 40 seconds	12
83	akki'	80 %	9 minutes 33 seconds	12
84	amritha	80 %	10 minutes 46 seconds	12
85	lakshmi	80 %	11 minutes 2 seconds	12
86	Pritha	80 %	11 minutes 16 seconds	12
87	Prakash	73 %	1 minutes 14 seconds	11
88	Prakash	73 %	1 minutes 34 seconds	11
89	atharvv	73 %	2 minutes 6 seconds	11
90	a	73 %	2 minutes 8 seconds	11
91	B	73 %	2 minutes 29 seconds	11
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110	tony joseph	73 %	5 minutes 47 seconds	11
111	D	73 %	5 minutes 57 seconds	11
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117	thick4ickdaddy27	73 %	6 minutes 43 seconds	11
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119	Kal	73 %	6 minutes 51 seconds	11
120	Sarvadip yadav	73 %	7 minutes 3 seconds	11
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138	Gbb	67 %	2 minutes 51 seconds	10
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140	Adeer	67 %	3 minutes 48 seconds	10
141	AKSHARA	67 %	4 minutes 16 seconds	10
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144	AMRUTA	67 %	4 minutes 54 seconds	10
145	Aruhi	67 %	5 minutes 3 seconds	10
146	r	67 %	5 minutes 28 seconds	10
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148	Ilma	67 %	5 minutes 47 seconds	10
149	Priya	67 %	6 minutes 18 seconds	10
150	k	67 %	6 minutes 26 seconds	10
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153	Charan Raj	67 %	7 minutes	10
154	Raj	67 %	8 minutes 3 seconds	10
155	Sunidhi sawkare	67 %	8 minutes 12 seconds	10
156	Adyasa	67 %	8 minutes 13 seconds	10
157	Bhumika Singh	67 %	9 minutes 22 seconds	10
158	Rahul	67 %	9 minutes 36 seconds	10
159	Dhruv	67 %	10 minutes 45 seconds	10
160	r	67 %	11 minutes 19 seconds	10
161	atharv	67 %	12 minutes 32 seconds	10
162	Archita	67 %	29 minutes 26 seconds	10
163	Mee	60 %	1 minutes 57 seconds	9
164	Anshika chaudhary	60 %	2 minutes 54 seconds	9
165	Prakash	60 %	3 minutes 17 seconds	9
166	Megha basapur	60 %	3 minutes 37 seconds	9
167	Column A Column B A. Bleaching powder i. Preparation of glass B. Baking Soda ii. Production of H2 and Cl2 C. Washing Soda iii. Decolorization D. Sodium Chloride	60 %	3 minutes 55 seconds	9
168	Fla	60 %	4 minutes 11 seconds	9
169	Deeksha	60 %	4 minutes 14 seconds	9
170	Prince Kumar	60 %	4 minutes 23 seconds	9
171	hh	60 %	4 minutes 34 seconds	9
172	h	60 %	4 minutes 36 seconds	9
173	S	60 %	4 minutes 39 seconds	9
174	Saina	60 %	5 minutes 5 seconds	9
175	lolan	60 %	5 minutes 20 seconds	9
176	Elsa	60 %	5 minutes 35 seconds	9
177	maddy	60 %	5 minutes 42 seconds	9
178	Prem Prakash	60 %	5 minutes 45 seconds	9
179	ayesha	60 %	5 minutes 49 seconds	9
180	ABC	60 %	5 minutes 56 seconds	9
181	Deepika	60 %	6 minutes 11 seconds	9
182	C . Caitlin Stefani	60 %	6 minutes 44 seconds	9
183	PRIYA	60 %	6 minutes 50 seconds	9
184	Varun	60 %	6 minutes 56 seconds	9
185	moon	60 %	7 minutes 16 seconds	9
186	ananya	60 %	7 minutes 31 seconds	9
187	Xyz	60 %	7 minutes 50 seconds	9
188	Ananya shukla	60 %	8 minutes	9
189	noor	60 %	8 minutes 13 seconds	9
190	Abb	60 %	8 minutes 31 seconds	9
191	arshnoor	60 %	8 minutes 35 seconds	9
192	Anjali	60 %	8 minutes 38 seconds	9
193	Aditya	60 %	8 minutes 48 seconds	9
194	anuradha	60 %	9 minutes 22 seconds	9
195	Yatin	60 %	9 minutes 51 seconds	9
196	Hana	60 %	9 minutes 53 seconds	9
197	Jass	60 %	11 minutes 1 seconds	9
198	sahil khan	60 %	11 minutes 19 seconds	9
199	Mohit	60 %	12 minutes 59 seconds	9
200	Vani	60 %	13 minutes 58 seconds	9

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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