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NCERT Solutions for Class 6 Science Chapter 7 Getting to Know Plants

Contents

  • 1 Getting to Know Plants NCERT Solutions for Class 6 Science Chapter 7
    • 1.1 Class 6 Science Chapter 7 Getting to Know Plants Exercise Questions and Answers
    • 1.2 Class 6 Science Chapter 7 Getting to Know Plants InText Questions and Answers

Our team of subject expert teachers has prepared and reviewed the NCERT Solutions for Class 6 Science Chapter 7 Getting to Know Plants are given here will help you to prepare well and score good numbers in exams.

Getting to Know Plants NCERT Solutions for Class 6 Science Chapter 7

Class 6 Science Chapter 7 Getting to Know Plants Exercise Questions and Answers

Question 1.
Correct the following statements and rewrite them in your notebook.

  1. Stem absorbs water and minerals from the soil.
  2. Leaves hold the plant upright.
  3. Roots conduct water to the leaves.
  4. The number of petals and sepals in a flower is always equal.
  5. If the sepals of a flower are joined together, its petals are also joined together.
  6. If the petals of a flower are joined together, then the pistil is joined to the petal.

Answer:

  1. Root absorbs water and minerals from the soil.
  2. Roots hold the plant upright.
  3. Stem conducts water to the leaves.
  4. The number of petals and sepals in a flower is usually the same.
  5. If the sepals of a flower are joined together, then its petals are not necessarily joined together.
  6. If the petals of a flower are joined, then the pistil is not necessarily joined to the petals.

Question 2.
Draw (a) a leaf, (b) a taproot, and (c) a flower you have studied for table 7.3?
NCERT Solutions for Class 6 Science img 14
NCERT Solutions for Class 6 Science img 15
NCERT Solutions for Class 6 Science img 17
NCERT Solutions for Class 6 Science img 16

Question 3.
Can you find a plant in your house or in your neighbourhood, which has a long but weak stem? Write its name. In which category would you classify it?
Answer:
Yes. It is a money plant. It is a herb.

Question 4.
What is the function of a stem in the plant?
Answer:
Functions of a stem in the plant are:

  1. The stem bears the weight of the plant and keeps the plant erect. It supports the branches and leaves in such a way that the leaves are properly exposed to sunlight and air to carry out photosynthesis and respiration efficiently. The stem also supports flowers and fruits.
  2. The water and minerals absorbed by the roots are conducted upwards by the stem to the branches, leaves etc.
  3. It also conducts the prepared food (starch) downwards from the leaves to all other parts of the plant.
  4. Green stems manufacture food for the plant by photosynthesis

Question 5.
Which of the following leaves have reticulate venation?
wheat, tulsi, maize, grass, coriander (dhania) China rose.
Answer:
Tulsi, China rose, coriander (dhania).

Question 6.
If a plant has a fibrous root, what type of venation do its leaves likely to have?
Answer:
The venation of the leaf is parallel for plants having fibrous roots.

Question 7.
If a plant has leaves with reticulate venation, what kind of roots will it have?
Answer:
If a plant has leaves with reticulate venation then it will have taproots.

Question 8.
Is it possible for you to recognize the leaves without seeing them?
Answer:
Yes, it is possible to recognize the leaves without seeing them by touching or smelling.

Question 9.
Write the names of the parts of a flower?
Answer:
Starting from outside, the names of various parts of a flower are:

  • Sepals (Calyx)
  • Petals (Corolla)
  • Stamens (Androecium)
  • The pistil (Gynoecium)

Question 10.
Which of the following plants have you seen? Of those that you have seen, which one has flowers?
Grass, maize, wheat, chilli, tomato, tulsi, peepal, shisham, banyan, mango, Jamun, guava, pomegranate, papaya, banana, lemon, sugarcane, potato, groundnut.
Answer:

Plants having flowers Plants not having flowers
Maize Shisham
Grass Peepal
Wheat Banyan
Chilli Sugarcane
Tomato Potato
Tulasi Groundnut
Mango
Jamun
Guava
Pomegranate
Papaya
Banana
Lemon

Question 11.
Name the part of the plant which produces its food, Name this process?
Answer:
Leaves produce food for the plant. This process is known as photosynthesis.

Question 12.
In which part of a flower you are likely to find the ovary?
Answer:
Pistil

Question 13.
Name two flowers each with joined and separated sepals?
Answer:
Flowers with joined sepals:

  • Datura
  • Louki

Flowers with separate sepals:

  • Gurhal
  • Mustard

Class 6 Science Chapter 7 Getting to Know Plants InText Questions and Answers

Activity 1

Enclose a branch of a potted plant in a polythene bag and tie up its mouth as shown in Fig. 7.1. After some time observe the inner surface of the bag.

Question 1.
What do you see ?
Answer:
We see drops of water inside the polythene bag.
NCERT Solutions for Class 6 Science img 10

Question 2.
How did water droplets appear in the bag ?
Answer:
Water droplets come from the plants.

Question 3.
Where could they have come from ?
Answer:
They could have come from the leaves.

Question 4.
Why do we tie a bag around the leaves ?
Answer:
We tied a bag around the leaves to test if water comes out of the leaves or not.

Activity 2

Place the leaf in the beaker and pour enough alcohol to cover it. Boil on a low flame till the green colour comes out.
Take out the leaf and wash it in water. Put it in a petridish/plate and pour some iodine solution over it.
NCERT Solutions for Class 6 Science img 11

Question 1.
What did you observe ?
Answer:
We observe that leaf becomes blue-black.

Question 2.
Did you make a similar observation in the chapter 1, food we eat ?
Answer:
Yes

Question 3.
Does it mean leaf has food/carbohydrate in it ?
Answer:
Yes, leaf has carbohydrate in it.

Activity 3

Uproot two weed plants from the roadside. Cut away the root of one. Place both in the soil in the pots as shown in Fig. 7.16. Water the pots daily. Observe both plants for four days.
Question 1.
In your class how many of the plants with their roots intact withered as compared to those that had no roots?
NCERT Solutions for Class 6 Science img 12
Answer:
All plants having no roots withered whereas plants having roots did not wither.

Question 2.
On the basis of the experiment can you say that plants generally wither without their roots ?
Answer:
Yes, we can say that, plants generally wither without their roots.

Question 3.
Based on this experiment tell why the root is inside the soil.
Answer:
The root absorbs water from the soil.

Activity 4

Place the seeds on wet cotton in a bowl. Keep the cotton moist by adding a little water every day. After about five days try and separate the small seedlings from the cotton. Was it easy to do this ? Did the roots become free of cotton ?
NCERT Solutions for Class 6 Science img 13
Answer:

  • No, it was not easy to separate the small seedlings from the cotton.
  • No, the roots do not become free of cotton.

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