CBSE Class 6 Science Chapter 10: Living Creatures — Assertion & Reason
CBSE Class 6 Science Assertion & Reason
Expert crafted · Instant PDF download · 2026-27
The following Assertion and Reason questions are based on Chapter 10: Living Creatures: Exploring their Characteristics from the NCERT Class 6 Science textbook Curiosity. Each question has four options — read both the Assertion (A) and Reason (R) carefully before selecting your answer.
How to attempt Assertion & Reason questions:
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Assertion & Reason Questions
1
Assertion (A): A car is considered a non-living thing even though it can move on roads.
Reason (R): Cars cannot grow, respire, or reproduce on their own, which are essential characteristics of living beings.
Reason (R): Cars cannot grow, respire, or reproduce on their own, which are essential characteristics of living beings.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. Movement alone does not make something living; an object must exhibit all essential life processes like growth, respiration, and reproduction to be considered a living being.
2
Assertion (A): Plants do not show any kind of movement because they are fixed to the ground.
Reason (R): Opening of flowers and winding of climbers around an object are examples of movements shown by plants.
Reason (R): Opening of flowers and winding of climbers around an object are examples of movements shown by plants.
Answer: (d)
A is false, but R is true. Even though plants do not move from one place to another like animals, they definitely exhibit movements such as blooming, climbing, and responding to touch or light.
3
Assertion (A): Drosera is an insectivorous plant that traps insects using saucer-shaped leaves with sticky hairs.
Reason (R): Insectivorous plants depend on insects for their nutrition.
Reason (R): Insectivorous plants depend on insects for their nutrition.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. Plants like Drosera have evolved special movement mechanisms to trap insects because they rely on them to fulfill their nutritional needs.
4
Assertion (A): Plants take in air and breathe through tiny pores present on the surface of their leaves.
Reason (R): These tiny pores on the leaves are called stomata.
Reason (R): These tiny pores on the leaves are called stomata.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. Like all living beings, plants respire, and they use the stomata on their leaves to exchange gases with the air.
5
Assertion (A): Plants do not excrete any waste products.
Reason (R): Grasses and rose plants excrete excess water and minerals in the form of small droplets on their leaves.
Reason (R): Grasses and rose plants excrete excess water and minerals in the form of small droplets on their leaves.
Answer: (d)
A is false, but R is true. Excretion is a characteristic of all living beings, including plants, which release excess water and minerals as visible droplets.
6
Assertion (A): The touch-me-not (chhui-mui) plant folds its leaves when touched.
Reason (R): Touching the plant acts as a stimulus to which the plant responds.
Reason (R): Touching the plant acts as a stimulus to which the plant responds.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. All living things respond to stimuli, and the folding mechanism of the chhui-mui plant is a direct reaction to the physical stimulus of touch.
7
Assertion (A): Water is strictly required for the germination of all seeds.
Reason (R): Water softens the seed coat and helps the tiny embryo inside to develop into a plant.
Reason (R): Water softens the seed coat and helps the tiny embryo inside to develop into a plant.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. Without water, the seed coat remains too hard, and the internal processes necessary for the embryo's growth cannot begin.
8
Assertion (A): Sunlight is absolutely essential for the initial sprouting and germination of all types of seeds.
Reason (R): Some seeds, like Calendula and Zinnia, actually require darkness to germinate.
Reason (R): Some seeds, like Calendula and Zinnia, actually require darkness to germinate.
Answer: (d)
A is false, but R is true. While sunlight is needed for a seedling to grow into a mature plant, most seeds do not require light to initially sprout, and some specifically need darkness.
9
Assertion (A): If a germinating seed is placed upside down, its root will bend and grow downwards.
Reason (R): Roots of plants naturally grow downwards towards the earth.
Reason (R): Roots of plants naturally grow downwards towards the earth.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. Roots have a natural tendency to grow downward into the soil, regardless of how the seed is initially oriented.
10
Assertion (A): When a seedling is kept in a dark box with only one small hole for light, the shoot bends and grows towards the hole.
Reason (R): Shoots of plants exhibit movement and growth towards the direction of sunlight.
Reason (R): Shoots of plants exhibit movement and growth towards the direction of sunlight.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. Plant shoots naturally grow towards light to maximize their ability to perform photosynthesis as they develop.
11
Assertion (A): Jagadish Chandra Bose built an instrument called a crescograph.
Reason (R): The crescograph was used to measure how fast plants grow and record their response to stimuli like light and heat.
Reason (R): The crescograph was used to measure how fast plants grow and record their response to stimuli like light and heat.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. J.C. Bose used his invention to scientifically prove that plants can sense their environment and respond to stimuli.
12
Assertion (A): The life cycle of a bean plant ends immediately after it produces its first flower.
Reason (R): A plant's life cycle continues as the flower develops into a fruit (pod) containing seeds for the next generation.
Reason (R): A plant's life cycle continues as the flower develops into a fruit (pod) containing seeds for the next generation.
Answer: (d)
A is false, but R is true. The flower is just a stage in the cycle; it must develop into a fruit with seeds to ensure the continuity of the plant's life cycle.
13
Assertion (A): A plant is considered dead when it stops growing and all life activities come to an end, even if food and water are available.
Reason (R): Death is an inevitable characteristic and final stage for all living beings.
Reason (R): Death is an inevitable characteristic and final stage for all living beings.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. No matter how many resources are provided, all living creatures eventually reach the end of their natural life cycle and die.
14
Assertion (A): Mosquitoes pass through four distinct stages in their life cycle: egg, larva, pupa, and adult.
Reason (R): Significant changes occur in a mosquito's appearance and body shape during these different stages.
Reason (R): Significant changes occur in a mosquito's appearance and body shape during these different stages.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. The mosquito's life cycle is a process of extreme transformation, where each stage looks and functions very differently from the others.
15
Assertion (A): Spraying kerosene oil on stagnant water helps prevent the breeding of mosquitoes.
Reason (R): Kerosene oil forms a layer on the water surface that stops mosquito larvae and pupae from inhaling air, causing them to die.
Reason (R): Kerosene oil forms a layer on the water surface that stops mosquito larvae and pupae from inhaling air, causing them to die.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. Because larvae and pupae need to come to the surface to breathe, the oil barrier cuts off their air supply.
16
Assertion (A): The cluster of eggs laid by a frog in water is known as spawn.
Reason (R): Frog eggs are covered by a hard, protective white shell just like a bird's egg.
Reason (R): Frog eggs are covered by a hard, protective white shell just like a bird's egg.
Answer: (c)
A is true, but R is false. Frog spawn is a soft, jelly-like substance found in water, not a hard-shelled egg like those laid by birds on land.
17
Assertion (A): A tadpole possesses a tail that helps it swim efficiently in water.
Reason (R): Tadpoles are an early stage in the life cycle of a frog, living exclusively in an aquatic habitat.
Reason (R): Tadpoles are an early stage in the life cycle of a frog, living exclusively in an aquatic habitat.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. Because tadpoles hatch and live in water before developing legs, their tail is a necessary adaptation for aquatic survival.
18
Assertion (A): Froglets live entirely on land and cannot survive in water.
Reason (R): Froglets still live in water but begin to spend some time on land as they develop strong legs.
Reason (R): Froglets still live in water but begin to spend some time on land as they develop strong legs.
Answer: (d)
A is false, but R is true. A froglet is a transitional stage; it has not completely left the water, but it is beginning to adapt to a terrestrial lifestyle.
19
Assertion (A): Reproduction is an essential characteristic of living beings.
Reason (R): Reproduction ensures the continuity of life and maintains the existence of one's own kind generation after generation.
Reason (R): Reproduction ensures the continuity of life and maintains the existence of one's own kind generation after generation.
Answer: (a)
Both A and R are true, and R is the correct explanation of A. Without the ability to produce young ones, a species would simply die out and cease to exist.
20
Assertion (A): Seeds sown deep in tightly packed soil without any air spaces germinate very quickly.
Reason (R): Seeds require the air present in the spaces between soil particles for successful germination.
Reason (R): Seeds require the air present in the spaces between soil particles for successful germination.
Answer: (d)
A is false, but R is true. Seeds need to respire to grow; therefore, tightly packed soil lacking air spaces will prevent germination, not speed it up.
❓ Frequently Asked Questions
What is covered in CBSE Class 6 Science Chapter 10 Living Creatures?
This chapter covers all key topics from Living Creatures as per CBSE 2026-27 syllabus.
Is this Assertion & Reason useful for CBSE board exams?
Yes, designed for CBSE Class 6 board exam preparation covering the complete syllabus.
Are these CBSE Class 6 Science Assertion & Reason updated for 2026-27?
Yes, all content at eBookPublisher is updated as per the latest 2026-27 CBSE syllabus.
How many chapters are in CBSE Class 6 Science?
All chapters of CBSE Class 6 Science are covered at eBookPublisher with free Assertion & Reason for each chapter.
Can I study Living Creatures online for free?
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