Class 6 Science Chapter 10 Extra Questions Living Creatures Exploring their Characteristics
Class 6 Science Chapter 10 Living Creatures Exploring their Characteristics Important Extra Questions and Answers
Living Creatures Exploring their Characteristics Class 6 Extra Questions Very Short Answer Type
Question 1.
Give an example of movement in plants?
Answer:
Opening of flower is one of the examples of movement in plants.
Question 2.
Why do living beings need food?
Answer:
Living beings need food (nutrition) for their growth and development.
Question 3.
Define the process of breathing?
Answer:
In the process of breathing, when we inhale, the air moves from outside to inside our body and when exhale, the air moves front inside of our body to outside.
Question 4.
Name the structure that help plant to respire.
Answer:
Stomata is a tiny pore present on the surface of leaves that helps plant to respire.
Question 5.
What does the patches around the armpit consists of?
Answer:
The patches around the armpit consists of water and salts.
Question 6.
Give two examples of plant that excrete excess water and minerals in the form of small droplets on leaves.
Answer:
Grasses and roses.
Question 7.
How does water helps in seed germination?
Answer:
Water softens the seed coat and helps the tiny embryo inside it to develop into a plant.
Question 8.
What are the two distinct life stages during the development of mosquito?
Answer:
Larva and pupa.
Question 9.
Name two seeds of flowering plants that require darkness to germinate.
Answer:
Calendula and Zinnia
Question 10.
Do the pupa and adult mosquito appears the same?
Answer:
No, pupa appears very distinct from the adult mosquito.
Question 11.
Name the organism used to produce silk.
Answer:
Silk moth.
Living Creatures Exploring their Characteristics Class 6 Extra Questions Short Answer Type
Question 1.
Plants are also called living beings. Mention any two characteristics that support this classification.
Answer:
Plants are called living beings because
(i) they carry out respiratory process.
(ii) they respond to stimulus.
Question 2.
List the types of movements seen in plants.
Answer:
We see the following movements in plants.
- Opening and closing of flower.
- Growth of stem and leaves.
- Growth of stem and twigs towards light and roots towards soil and water.
Question 3.
Ayush spotted the flower shown below on his way back home. What is special about this plant? Explain in brief.
Answer:
The plant Aayush, spotted was Drosera. It is an insectivore plant, which traps insects with its sticky ends when they enter its saucer shaped leaves.
Question 4.
How do plants excrete?
Answer:
Plants excrete the unwanted products, i.e. excess water and minerals in the form of small droplets on their leaves. These can be easily observed on roses and grasses.
Question 5.
What direction of growth of root and shoot is expected if
(i) the plant is kept upright?
(ii) the plant is kept inverted?
Ans.
(i) When the plant is kept upright, the root grows downwards while the shoot grows upwards.
(ii) When the plant is kept inverted, the root bends and grows downwards, whereas the shoot bends and grows upwards.
Question 6.
If you want to record how plants respond to stimuli, what machine would you use?
Ans.
To record how plants respond to stimuli like light, heat, electricity or gravity, we can use a crescograph. With this machine, we can also measure how fast the plants grow.
Question 7.
Carefully observe the diagram given and answer the questions that follows.
(i) Identify ‘ A ‘ and ‘ B ‘.
(ii) What is the effect of water on ‘ B ‘
(iii) What does ‘ A ‘ develop into?
Answer:
(i) In the given figure, ‘ A ‘ represents embryo while ‘ B ‘ represents the seed coat.
(ii) Water softens the seed coat labelled as ‘ B ‘.
(iii) ‘ A ‘, i.e. the embryo develops into a plant.
Question 8.
Observe the figure given below and answer the questions that follows.
(i) Identify ‘ X ‘ and ‘ Y ‘.
(ii) Where can you easily spot ‘ X ‘ and ‘ Y ‘?
(iii) Write down the key difference between ‘ X ‘ and ‘ Y.
Answer:
(i) In the given figure, ‘ X ‘ represents the pupa, while ‘ Y, represents the larvae of a mosquito.
(ii) Larvae and pupae can be easily found in places, where stagnant water is likely to gather like in any open container, pots or desert coolers.
(iii) The larva and pupa are two distinct life stages during the development of mosquito. The larva grows into a pupa, which further transforms into an adult mosquito.
Question 9.
Why do tadpoles have tails even after developing legs?
Answer:
Tadpoles retain their tails even after their legs are developed as these tails help them to swim in water.
Question 10.
Label the diagram given below from A to F.
Answer:
The figure can be labelled as follows
- A – Spawn
- B – Embryo
- C – Tadpole with tail
- D – Tadpole with legs
- E – Froglet
- F- Adult frog
Living Creatures Exploring their Characteristics Class 6 Extra Questions Long Short Answer Type
Question 1.
Although a car also moves, it is not considered a living organism. Give two or three reasons.
Answer:
A moving car is not considered as a living organism because of the following reasons
(i) Living organisms have the ability-to move on their own, whereas a car moves by the burning of fuels like diesel and petrol.
(ii) Like all living organisms, a car does not show any other living characteristics like respiration, reproduction or growth.
Question 2.
Consider the diagram given below and answer the following questions.
(i) Identify A, B and C in given life cycle of mosquito.
(ii) Name any two diseases that are transmitted by female mosquito.
(iii) What can you do to prevent the development of ‘ A ‘?
Answer:
(i) The figure can be labelled as follows A-Egg, B-Larva, C-Pupa
(ii) The female mosquito transmits diseases like malaria and dengue.
(iii) The methods to prevent the formation of A, i.e.
eggs are-
- Not allowing water to stagnate in our surroundings.
- Spraying of kerosene oil in areas where water tends to gather.
Living Creatures Exploring their Characteristics Class 6 Extra Questions Case Based
Question 1.
In school garden, the students have planted a special plant called chhui-mui, also known as the “touch-me-not” plant. This plant is known for its unique ability to respond to touch. Whenever someone touches its leaves, they fold up quickly. The
students are excited to learn more about this fascinating plant and its behaviour.
i. What happens to leaves of the chhui-mui plant, when they are touched?
Answer:
The leaves of the chhui-mui plant fold up quickly when they are touched.
ii. How can observing the chhui-mui plant help us to understand more about plants and their behaviours?
Answer:
The leaves of the chhui-mui plant helps us to understand how plants can respond to environmental changes and threats. It demonstrates that some plants can have sensitive reactions to touch and they use these responses as survival strategies.
iii. Give example of one more such unique plant which respond to stimulus.
Answer:
Indian gooseberry is another example of such unique plants that respond to stimulus, as after sunset, leaves of this plant that faces each other tend to come together.
Question 2.
In a small village mosquitoes were causing problems, spreading diseases like malaria. To tackle this, the village head suggested using kerosene on stagnant water around the village, which reduced the mosquito population.
i. Why is stagnant water a problem for mosquito breeding?
Answer:
Stagnant water allows mosquitoes to breed by laying their eggs and provides a habitat for larva and pupa to grow.
ii. How do kerosene help in reducing mosquitoes?
Answer:
Kerosene forms a layer on the water preventing mosquito larvae from breathing, which kills them.
Living Creatures Exploring their Characteristics Class 6 Extra Questions Skill Based
Question 1.
Can we grow plants without germinating their seeds? Explore and write some examples. Thinking Skill
Answer:
Yes, plants can be grown without germinating seeds through various method. Here are some examples.
(i) Many plants can grow from cuttings taken from the parent plant. For example, tomato plants or rose bushes can be grown from cuttings of the stems.
(ii) Some plants like strawberries, produce long, horizontal stems that grow into a new plant.
(iii) Plants like potatoes can be grown from tubers (the underground storage organs.)
Question 2.
Visit a nearby park and observe the life cycle of a butterfly. Compare it with the life cycle of a frog. How are the two life cycles are different? Make notes on your observation and explain the differences. Observation Skill
Answer:
The differences between the life cycle of butterfly and frog are as follows
(i) Butterflies lay eggs on plants, while frogs lay eggs in water.
(ii) Butterflies undergo a life cycle with stages of egg, caterpillar, chysalis and adult butterfly, while frogs have stages of egg, tadpole, froglet and adult frog.