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
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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

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

2 / 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

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 Y and no change in color on the leaf of plant X.

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

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

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

3 / 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

4 / 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

ii and iii

ii and iv

i and ii

i and iii

5 / 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 auricle and left auricle simultaneously.

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

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

Blood transferred to the right ventricle and left ventricle simultaneously.

6 / 15

The function of KOH is to absorb

Sunlight

Carbon dioxide

Oxygen

Moisture

7 / 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

8 / 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 only

Pisces and amphibians

9 / 15

Opening and closing of stomatal pore depend on:

Oxygen concentration around stomata

Atmospheric temperature

Water content in the guard cells

Carbon dioxide concentration around stomata

10 / 15

Look at the diagram below carefully.

life processes class 10 important questions

Identify the process taking place at Z.

Transpiration

Translocation

Photosynthesis

Reproduction

11 / 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:

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

12 / 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

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 - b, ii - c, iii – d, iv - a

i - b, ii - d, iii – c, iv - a

i - d, ii - a, iii – b, iv - c

14 / 15

The given figure represents the structure of a nephron.

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

15 / 15

Identify the option that indicates the correct enzyme that is secreted in locations A, B, and C.

i. lipase, ii. trypsin, iii. pepsin

i. permease, ii. carboxylase, iii. oxidase

i. amylase, ii. pepsin, iii. trypsin

i. trypsin, ii. amylase, iii. carboxylase

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Pos.	Name	Score	Duration	Points
1	Shivanshi Mishra	100 %	45 seconds	15
2	A	100 %	47 seconds	15
3	A	100 %	50 seconds	15
4	harsha	100 %	1 minutes 7 seconds	15
5	Shivanshi Mishra	100 %	1 minutes 15 seconds	15
6	atharvv	100 %	1 minutes 23 seconds	15
7	harsha	100 %	1 minutes 33 seconds	15
8	varun	100 %	1 minutes 40 seconds	15
9	D	100 %	2 minutes 3 seconds	15
10	varun	100 %	2 minutes 7 seconds	15
11	s	100 %	2 minutes 12 seconds	15
12	Pritha	100 %	2 minutes 25 seconds	15
13	sparsh goel	100 %	3 minutes 38 seconds	15
14	varun	100 %	3 minutes 49 seconds	15
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16	Mayank	100 %	6 minutes 7 seconds	15
17	roli	100 %	7 minutes 26 seconds	15
18	Varun	100 %	12 minutes 52 seconds	15
19	harsha	93 %	1 minutes 5 seconds	14
20	harsha	93 %	1 minutes 7 seconds	14
21	Shreya	93 %	1 minutes 8 seconds	14
22	A	93 %	1 minutes 16 seconds	14
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24	Prakash	93 %	1 minutes 38 seconds	14
25	atharvv	93 %	1 minutes 39 seconds	14
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31	john hollock	93 %	4 minutes 53 seconds	14
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34	Pritha	93 %	7 minutes 15 seconds	14
35	Arnav	93 %	10 minutes 5 seconds	14
36	Lana Del Ray	93 %	10 minutes 37 seconds	14
37	sparsh goel	93 %	11 minutes 34 seconds	14
38	TOKYO	93 %	34 minutes 57 seconds	14
39	A	87 %	1 minutes 12 seconds	13
40	A	87 %	1 minutes 21 seconds	13
41	marvella	87 %	1 minutes 53 seconds	13
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48	Mahima	87 %	4 minutes 7 seconds	13
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50	P	87 %	5 minutes 15 seconds	13
51	Reproduction in organisms	87 %	5 minutes 16 seconds	13
52	Kiara	87 %	5 minutes 26 seconds	13
53	Prem Prakash	87 %	5 minutes 27 seconds	13
54	Har	87 %	5 minutes 59 seconds	13
55	Diya	87 %	6 minutes 3 seconds	13
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64	AMRUTA	87 %	10 minutes 48 seconds	13
65	akash	87 %	12 minutes 24 seconds	13
66	.	87 %	13 minutes 22 seconds	13
67	Manasa.M	87 %	14 minutes 33 seconds	13
68	A	80 %	56 seconds	12
69	Prem Prakash	80 %	3 minutes 17 seconds	12
70	RITURAJ Rizz Agian	80 %	3 minutes 24 seconds	12
71	Uu	80 %	3 minutes 25 seconds	12
72	Pritha	80 %	3 minutes 29 seconds	12
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80	Charan Raj	80 %	4 minutes 50 seconds	12
81	anu	80 %	5 minutes 11 seconds	12
82	Harsh	80 %	5 minutes 42 seconds	12
83	Pritha	80 %	5 minutes 47 seconds	12
84	Gtvvgvgd	80 %	6 minutes 8 seconds	12
85	Charan Raj	80 %	6 minutes 12 seconds	12
86	Goat	80 %	6 minutes 12 seconds	12
87	Rekha	80 %	6 minutes 32 seconds	12
88	Anya	80 %	7 minutes 5 seconds	12
89	Kashish	80 %	7 minutes 19 seconds	12
90	why	80 %	7 minutes 40 seconds	12
91	akki'	80 %	9 minutes 33 seconds	12
92	amritha	80 %	10 minutes 46 seconds	12
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97	Prakash	73 %	1 minutes 14 seconds	11
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110	S	73 %	4 minutes 38 seconds	11
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114	Fossil	73 %	5 minutes 1 seconds	11
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120	Siya	73 %	5 minutes 36 seconds	11
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122	tony joseph	73 %	5 minutes 47 seconds	11
123	D	73 %	5 minutes 57 seconds	11
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148	Meet	73 %	10 minutes 41 seconds	11
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150	S. VISHNU RAM	73 %	13 minutes 5 seconds	11
151	Ghi	73 %	14 minutes 3 seconds	11
152	Shivendra Singh	73 %	15 minutes 20 seconds	11
153	aman	73 %	16 minutes 13 seconds	11
154	Thanusree	73 %	28 minutes 34 seconds	11
155	anuradha	73 %	1 hours 1 minutes 27 seconds	11
156	Gbb	67 %	2 minutes 51 seconds	10
157	Prakash	67 %	3 minutes 26 seconds	10
158	Adeer	67 %	3 minutes 48 seconds	10
159	AKSHARA	67 %	4 minutes 16 seconds	10
160	fire	67 %	4 minutes 23 seconds	10
161	Jiya	67 %	4 minutes 26 seconds	10
162	AMRUTA	67 %	4 minutes 54 seconds	10
163	Aruhi	67 %	5 minutes 3 seconds	10
164	r	67 %	5 minutes 28 seconds	10
165	ZXCVB	67 %	5 minutes 40 seconds	10
166	Ilma	67 %	5 minutes 47 seconds	10
167	Priya	67 %	6 minutes 18 seconds	10
168	k	67 %	6 minutes 26 seconds	10
169	Rahul	67 %	6 minutes 42 seconds	10
170	Kiara	67 %	6 minutes 51 seconds	10
171	Charan Raj	67 %	7 minutes	10
172	Raj	67 %	8 minutes 3 seconds	10
173	Sunidhi sawkare	67 %	8 minutes 12 seconds	10
174	Adyasa	67 %	8 minutes 13 seconds	10
175	Bhumika Singh	67 %	9 minutes 22 seconds	10
176	Rahul	67 %	9 minutes 36 seconds	10
177	Dhruv	67 %	10 minutes 45 seconds	10
178	r	67 %	11 minutes 19 seconds	10
179	Tejasvi	67 %	11 minutes 23 seconds	10
180	atharv	67 %	12 minutes 32 seconds	10
181	Archita	67 %	29 minutes 26 seconds	10
182	r	60 %	1 minutes 44 seconds	9
183	Mee	60 %	1 minutes 57 seconds	9
184	☆	60 %	2 minutes 17 seconds	9
185	Anshika chaudhary	60 %	2 minutes 54 seconds	9
186	Prakash	60 %	3 minutes 17 seconds	9
187	Megha basapur	60 %	3 minutes 37 seconds	9
188	Varshini	60 %	3 minutes 55 seconds	9
189	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
190	Fla	60 %	4 minutes 11 seconds	9
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192	Prince Kumar	60 %	4 minutes 23 seconds	9
193	hh	60 %	4 minutes 34 seconds	9
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197	lolan	60 %	5 minutes 20 seconds	9
198	Elsa	60 %	5 minutes 35 seconds	9
199	maddy	60 %	5 minutes 42 seconds	9
200	Prem Prakash	60 %	5 minutes 45 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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Also See: Forest and Wildlife Resources Class 10 Social Science MCQ Quiz – Test Your Knowledge

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