Class 6 Science Chapter 7 Exercises

 

Chapter 7: Getting to know Plants

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

(a) Stem absorbs water and minerals from the soil.

(b) Leaves hold the plant upright.

(c) Roots conduct water to the leaves.

(d) The number of petals and stamens in a flower is always equal.

(e) If the sepals of a flower are joined together, its petals are also joined together.

(f) If the petals of a flower are joined together, then the pistil is joined to the petal.

 

Ans:

(a) Roots absorb water and minerals from the soil.
(b) Roots hold the plant upright.
(c) Stem conducts water to the leaves.
(d) The number of petals and sepals in a flower is usually equal.
(e) If the sepals of a flower are joined together, its petals are not necessarily joined together.
(f) If the petals of a flower are joined together, then the pistil is not necessarily joined to the petal.

 

2. Draw (a) a leaf, (b) a taproot and (c) a flower, you have studied for Table 7.3.

Ans:

(a)

(b)

(c)

3. Can you find a plant in your house or in your neighborhood, which has a long but weak stem? Write its name. In which category will you place it?

 

Ans: Yes, we find a money plant in our house. It is a climber.

 

4. What is the function of a stem?

 

Ans: A stem performs following functions:

a.     It bears leaves, flowers and fruits.

b.     It transports water from roots to different parts of the plant.

c.     It transports food from leaves to different parts of the plant.

 

 

5. Which of the following leaves have reticulate venation?

Wheat, tulsi, maize, grass, coriander (dhania), China rose

 

Ans: Tulsi and China rose.

 

 

6. If a plant has fibrous root, what type of venation do its leaves have?

 

Ans:  If a plant has fibrous root, its leaves have parallel venation.

 

 

7. If a plant has leaves with reticulate venation, what kind of roots will

it have?

 

Ans: If a plant has leaves with reticulate venation, it has tap root.

 

 

8. Is it possible for you to find out whether a plant has taproot or fibrous roots by looking at the impression of its leaf on a sheet of paper?

 

Ans: Yes, it is possible to find out whether a plant has taproot or fibrous roots by looking at the  impression of its leaf on a sheet of paper. If the leaves have reticulate venation, the plant has tap root and if the leaves have parallel venation, the plant has fibrous root.

 

 

 

9. What are the parts of a flower.

 

Ans: The various parts of a flower are:
(i) Sepals
(ii) Petals
(iii) Stamens
(iv) Pistil.

 

 

10. From the following plants, which of them have flowers?

Grass, maize, wheat, chilli, tomato, tulsi, peepal, shisham, banyan, mango, jamun, guava, pomegranate, papaya, banana, lemon, sugarcane, potato, groundnut.

 

Ans: All of them has flowers.

 

 

 

11. Name the part of plant which produces food. Name the process.

 

Ans: The leaves produce food for the plant. The name of the process of production of food by leaves is photosynthesis.

 

 

 

12. In which part of a flower, you will find the ovary?

Ans:  We find ovary in pistil. It is the lowermost part of the pistil.

 

13. Name two plants in which one has joined sepals and the other has separate sepals.

 

Ans: Flowers with joined sepals:
(i) Datura
(ii) Cotton
Flowers with separate sepals:
(i) Gurhal
(ii) Mustard

Solution of Exercises of Chapter 1; Food: Where does it come from.

Solution of Exercises of Chapter 2; Components of Food.

Solution of Exercises of Chapter 3; Fibre to Fabric.

Solution of Exercises of Chapter 4; Sorting Materials into Groups.

Solution of Exercises of Chapter 5; Separation of Substances.

Solution of Exercises of Chapter 6; Changes around us.

Solution of Exercises of Chapter 7; Getting to Know Plants.

Solution of Exercises of Chapter 8; Body Movements.