6th Standard Science (Getting to Know Plants )

 Getting to Know Plants

I. Correct the following statement &rewrite them.

1. Stem absorb water and minerals from the soil
Ans:Roots absorb water and minerals from the soil

 

2. Leaves hold the plant upright
Ans:Roots hold the plant upright.

 

3. Roots conduct water to the leaves.
Ans:Stem conduct water to the leaves

 

4. The number of petals and sepals in a flower is always equal.
Ans:The number of petals and sepals in a flower is usually equal.

 

5. If the sepal of a flower are joined together, its petals are also joined together
Ans:If the sepal of a flower are joined together its petals are not necessarily joined together

 

6. If the petals of a flower are joined together, then the pistil is joined to the petal
Ans:If the petals of a flower are joined together them the pistil is not necessarily joined to the petal.

 

II. Draw
(a) A leaf
(b) A taproot and
(c) A flower you have studied
Ans:

 

III. Answer the following:

1. Can you find a plant in your house or in yours neighborhood, which has a long but a weak stem?Write its name. In which category would you classify it?
Ans:It is a money plant. It is a climber

 

2.What is the function of a stem in a plants?

Ans: a)   In order to get maximum sunlight, stem and its branches hold the leaves. 

b) Stems transfer water from roots to various parts of the plants. 

c)  It transports food from leaves to various parts

d)  It bears leaves, flowers and fruits.

 

3.Which of the following leaves have reticular venation? Wheat, tulasi, maize, grass, coriander, China rose.
Ans:Tulasi, and China rose.

 

4.If a plant has fibrous roots, What type of venation do its leaves likely to have?
Ans:It has parallel venation

 

5. If a plant has leaves with reticular venation, what kind of roots will it have
Answer:It has tap root

 

6. 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:We cannot exactly recognise the leaves without seeing them. We may be able to have some idea by touching and smelling them.

 

7. Write the names of the parts of a flower 

Ans:The names of various parts of a flower from outside to inside are: a)   Sepals                b)  Petals

                  c) Stamens             d)  Pistil

 

8. Which of the following plants have you seen? Of those that you have, which one have flowers?
Ans:Grass, maize, wheat, chill, tomato, tulasi, pipal, shisham, banyan, mango, jamun, guava, pomegrenate, papaya, banana, lemon, sugarcane, potato, groundnut

 

9. Name the part of the plant which produces its food. Name this process.
Ans: Leaves produces the food of the plant, the process of making food in the presence of sunlight is called photosynthesis

 

12.In which part of a flower you are likely to find the ovary?
Ans: Ovary is present in the pistil of the flower

 

13.Name two flower, each with joined and separated sepals.
Ans: Two flower with joined sepals: China rose and cotton.
Two flower with separated sepals: Rose and jasmine.