Page No. 10
We learnt a little bit about plants. Let us revise the same by completing the following statements:
(Help Box – chlorophyll, stem, seeds, root)
(a) Root fixes a plant in the soil.
(b) Stem supports a plant and keeps it upright.
(c) Leaf has chlorophyll in it to prepare food and to give it its green colour.
(d) Fruits have seeds in them which germinate to form plants.
Something to Know
A. Fill in the blanks.
1. Root is the underground part of a plant.
2. Roots absorb water and mineral for the plant.
3. Neem and peepal have tap roots.
4. Carrot and radish are edible roots.
5. Mangrove plants have aerial (breathing) roots.
B. Write True or False for the following statements.
1. Carrot and beetroot store food in them. True
2. Beans and rose have fibrous roots. False
3. All roots are edible. False
4. Roots do not get sufficient oxygen in marshy areas. True
C. Tick (✔) the correct option.
1. The root of this plant stores food-
(a) mango
(b) apple
(c) banana
(d) carrot (✔)
Answer – (d) carrot (✔)
2. This plant has a tap root-
(a) banana
(b) grass
(c) wheat
(d) rose (✔)
Answer – (d) rose (✔)
3. These plants have breathing roots-
(a) mangrove (✔)
(b) apple
(c) neem
(d) peepal
Answer – (a) mangrove (✔)
D. Answer the following questions in brief.
1. Name the two different types of roots.
Answer – Two different types of roots are tap roots and fibrous roots.
2. Give two examples of plants having fibrous roots.
Answer – Two plants having fibrous roots are banana and grasses.
3. Why do aerial roots need to come out of the soil?
Answer – Aerial roots need to come out of the soil to get sufficient oxygen in the marshy areas.
E. Answer the following questions.
1. Draw the shape of the tap root and the fibrous root.
Answer –
2. In what way(s) is the tap root different from the fibrous root?
Answer – Tap roots
Tap roots is a single, long roots arising from it. Plants like bean, rose, lady finger have tap roots.
Fibrous roots
Fibrous roots are those in which many roots arise from the base of stem. Cereals, grasses and banana have fibrous roots.
3. State the two main functions of roots.
Answer – Two main functions of the roots are
It helps plants to absorb water and mineral from the soil.
It holds the plant upright in the soil.
4. In what way are the roots of banyan tree and maize ‘special’?
Answer – In banyan tree it gets extra support with the help of special roots that grow downwards from the branches.
Maize tree have thin and long stems which require extra support to keep them erect. Such plants have roots arising from the base of their stem that help to support the plant.
Value Based Question
Rohan saw Ram Manohar, the watchman, cutting a small tree to make a fire to warm himself. He immediately asked him not to do so. Later, he went home and requested his mother to give a blanket to the watchman. The watchman was very happy to get the blanket. He thanked Rohan and promised him that he would not cut any tree. He also promised to check that nobody else does so.
1. What does the above situation tell us about Rohan?
Answer – Rohan is a very kind hearted boy. He is nature lover as he saves the tree and told watchman not to cut trees as well as he gave blanket to the watchman.
2. How did he help the watchman?
Answer – Rohan helped the watchman by telling his mother to give a blanket to the watchman.
3. Rohan, stopped the watchman from cutting trees. Have you ever done anything similar to save your environment?
Answer – Yes, I have stopped some school children from throwing plastics bottles around our neighbourhood as plastics are harmful for animal as well as for environment.
Something to Do
1. Take a small sapling of grass and a mustard plant, observe their roots and note down their differences, if any.
Answer – Students will do this activity under the guidance of parents or teacher.
2. Prepare a chart showing some ‘edible roots’. List down the ways in which they are usually eaten.
Answer – Here are some names of edible roots
Beets – eaten raw
Carrots – eaten both raw and cooked
Onions – eaten both raw and cooked
Parsnips – eaten both raw and cooked
Potatoes – eaten cooked
Radishes – eaten raw
Rutabaga – eaten both raw and cooked