RBSE Solutions for Class 5 Environmental Studies Chapter 6 Seed becomes Plant

RBSE Solutions for Class 5 Environmental Studies Chapter 6 Seed becomes Plant

Rajasthan Board RBSE Class 5 Environmental Studies Chapter 6 Seed becomes Plant

Text Book Questions

Think and answer (Page No. 32)

Question 1.
The name of some food items are given below in the table. Write the names of the parts of the plant which we use as food.

Answer:
1. (Seed)
2. (Fruit)
3. (root)
4. (seed)
5. (root)
6. (root)

Do the following activity and record your observations (Page No. 33)

1. In a bowl, take some grains of green gram/moth bean/chickpea and fill it with water.
2. In the second bowl, place some grains of green gram /moth bean/chick pea in a wet cloth and cover them with the wet cloth.
3. In the third bowl, take some grains of green gram /moth bean/chick pea and leave them open. Record the observations related to their germination for a few days, for all three bowls in your feedback.

Think and answer the following question (Page No. 33)

Question 1.
In which bowl, there is more germination? Why?
Answer:
In bowl no. 2, because there is balance of temperature and moisture.

Question 2.
In which bowl the germination of grains started from day 1?
Answer:
None of the bowls.

Question 3.
Why were the grains tied in a wet cloth for germination?
Answer:
The grains were tied in a wet cloth for germination because it creates the situation for germination which gives the seed the proper moisture and temperature.

Question 4.
In which bowl there is no germination?
Answer:
Bowl No. 3.

Question 5.
Why is there no germinations of the grains of the cereals, kept in our home?
Answer:
There is no germination of grains kept in our home because they become very dry and they are not in moist condition.

Points of discussion (Page No. 35)

Question 1.
Observe different plants in your surrounding, and discuss which plant grow without seed? From which part of the plant do they grow?
Answer:

Explore and answer the following (Page No. 36)

Question 1.
How is grafting done?
Answer:
Some plants are such that if their twigs are cut and planted in the soil then sometime later a new plant emerges from it It is called grafting. Like rose, sugarcane, orange, kaner, lemon, mogra, jasmine etc. The Money Plant can also be planted with a twig.

Question 2.
Write the name of a plant which is grown from its leaf?
Answer:
Patharchatta (Bryophillum) is grown from its leaves.

Think and answer the following (Page No. 36)

Question 1.
Where have you seen plants growing at places other than the ground?
Answer:
Plants can grow in water, on the wall, in a pot, other than the grounds.

Things to do (Page No. 37)

Question 1.
Paste a map of the world in your notebook and mark the continents in it. Also write the names of the food items and the plants with the continent from where they came to our country.
Answer:
Follow the map of the textbook (Page No. 37)

Explore (Page No. 38)

Question 1.
Out of the above, which foreign plants have you seen in your surroundings?
Answer:
Tea, coffee, lady finger, cauliflower, peas, eucalyptus, lantana. Parthenium etc. are the foreign plants.

Learnt, understood and now tell (Page No. 38-39)

Question 1.
Explain about the necessary conditions required for the germination of the seeds.
Answer:
By soaking the seeds in water and binding them in a cotton cloth, seeds get germinated. It is evident from the fact that moisture, heat and air are required for germination of a seed.

Question 2.
Name a plant which grows without seed and draw a diagram of it.
Answer:
Patharchatta (Bryophillum) grows without seed.

Question 3.
What is dispersal?
Answer:
Seeds are scattered in different places with high speed, wind, flow with water or stick on the beak of the birds and body of the animals. This phenomenon of scattering of seeds is know n as dispersal.

Question 4.
How human beings help in dispersal of seeds?
Answer:
When humans sit near the trees, seeds from them stick to their clothes and are carried to other places. Humans also cany’ seeds to other places and plant them in farms or parks where they sprout.

Question 5.
Write the names of 5 plants which came to India from foreign countries.
Answer:
Tea. coffee, lady finger, cauliflower, peas came to India from foreign countries.

Other Important Questions

Objective Type Questions :

Question 1.
Sugarcane grows in this process :
(a) By seed
(b) By root
(c) By stem
(d) By leaf
Answer:
(c) By stem

Question 2.
Bajra can be produced from :
(a) Seed
(b) Root
(c) Stem
(d) Leaf
Answer:
(a) Seed

Question 3.
Lantana plant came from :
(a) Europe
(b) South America
(c) China
(d) Australia
Answer:
(b) South America

Question 4.
This type of plant came to India from Africa,
(a) Lady finger
(b) Potato
(c) Green chilli
(d) Peas
Answer:
(a) Lady finger

Question 5.
The root of which plant group are used as food? .
(a) Rice, carrot, raddish
(b) Carrot, raddish, onion
(c) Apple, mango, turnip
(d) Onion, potato, bajra
Answer:
(b) Carrot, raddish, onion

Question 6.
A rose plant is grown through a stem, similarly, name the plant which is grown through a leaf: (Board Paper)
(a) Potato
(b) Jasmine
(c) Pathharchatta (Bryophyllum)
(d) Mint
Answer:
(c) Pathharchatta (Bryophyllum)

Fill in the blanks :

1. The British brought……… plant from South America and planted in the garden of Kolkata city. (lantana / eucalyptus)
2. A British officer brought eucalyptus from ………… and planted it in Nilgin hills in Tamil Nadu. (America / Australia)
3. We take food of wheat, maize, rice in the form of ………… (seed / plant)
4. Mango, apple etc. are the which are ……… eaten happily. (fruits / leaf)
5. Rose plant is grown by ………. (root / graft)
Answer:
1. (lantana)
2. (Australia)
3. (seed)
4. (fruit)
5. (graft).

State True or False :

Question 1.
Coffee plant came to India from Africa.
Answer:
true

Question 2.
Another name of eucalyptus is nilgin.
Answer:
true

Question 3.
Gajarghas came to India from London
Answer:
false

Question 4.
Lantana plant came to India from South America.
Answer:
true

Very Short Answer Type Questions :

Question 1.
Wliich part of spinach and methi plant are used as food?
Answer:
Leaf

Question 2.
Which part of carrot, raddish, onion are used as food?
Answer:
Root

Question 3.
From what the wheat plant is grown?
Answer:
From seed.

Question 4.
From what sugarcane is grown?
Answer:
By grafting.

Question 5.
Which plant grows from leaves?
Answer:
Pattharchatta (bryophyllum).

Question 6.
Ginger grows from which part?
Answer:
From root.

Question 7.
When the seeds are scattered in different places with wind, water or may stick to the beak of the birds and body of animals, what is the process called?
Answer:
Seed dispersal.

Question 8.
From which county, cauliflower and peas came to India?
Answer:
From Europe.

Question 9.
Which plant came to India from Africa?
Answer:
Coffee and lady finger.

Question 10.
Winch plant in India is called Nilgiri plant?
Answer:
Eucalyptus.

Short Answer Type Questions :

Question 1.
What is ‘gajarghas’ (parthenium)?
Answer:
When India imported wheat from USA, some seeds of parthenium (gajarghas) came along with it and unnecessarily spread in our country.

Question 2.
When did the Lantana plant come to India?
Answer:
In the year 1807, the British brought lantana plant from South America and planted in the garden of Kolkata city.

Question 3.
When did the Eucalyptus plant come to India?
Answer:
A British officer brought eucalyptus from Australia) 1830) and planted it in Nilgiri hills in Tamil Nadu. Hence, it is also called as Nilgiri.

Question 4.
How is grafting done?
Answer:
Some plants are such that if their twigs are cut and planted in the soil, then, sometime later a new plant emerges from it. It is called grafting.

Question 5.
Which type of plants are gown by grafting?
Answer:
Rose, sugarcane, orange, kaner, lemon, mogra, jasmine, money plant etc. are gown by grafting.

Question 6.
What is the dispersal process?
Answer:
Seeds are scattered in different places with high speed, wind, flow with water or stick on the beak of the birds and body of the animals. This phenomenon of scattering of seeds is known as dispersal.

Essay Type Questions :

Question 1.
How human beings help in dispersal of seeds? Give examples.
Answer:
When humans sit near the trees, seeds from them stick to their clothes and are carried to other places. Humans also carry seeds to other places and plants them in farms or parks where they sprout. When people migrate and settle down at other places, the plants also shift from one place to another.

Question 2.
Describe the process of plants growing from seed and growing without seed.
Answer:
(i) Germination of a Seed- Generally, the plants grow from the seed. Put the seeds in the soil, give them fertilizer, water. Then the leaves sprout in them and go into the ground, and after a few days copulas grow towards the top, which make the plants. Wheat, Barley, Rice, Chana, Jawar, Bajra, mung, Moth, Urad, Arhar etc. plants grow from seed.

(ii) Growing Plant without Seed- There are many plants that grow without seed. Some plants are such whose twigs are cut off and sown in the soil and sometimes later new plants come from it. It is called grafting. But, for grafting, the twig should be cut down from the lump and should be sown in the rain. Rose, jasmine, sugarcane etc. are grown by this process. Atwig of a money plant along with its bud put in a bottle containing water or in a pot containing soil and a plant would grow from it.

A twig of a mint plant (pudina) along with its root when sown in the wet soil, after few days, many mint plants grow in that place. Similarly, if we bury potato, ginger etc. in a pot containing soil, plants will grow from it. On the other side, if we put a leaf of Bryophyllum (pattharchatta) in a pot containing soil, a new plant grows from that leaf. In this way, plants grow without seed.

(iii) From Root- Some plants are bom from the roots. E.g. Potatoes, sweet potatoes, ginger etc.

(iv) From Reaf- There are some plants which grow from the edge of the leaves. E.g. pattharchatta (bryophyllum).