NCERT Solutions Class 6 Science Chapter 7 Getting To Know Plants

NCERT Solutions for Class 6 Science for Biology chapter 07 Getting To Know Plants

Exercises

Question.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 sepals 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.

Answer:

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

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

Answer:
a) a leaf of rose plant

b) tap root of rose plant

c) a flower of rose plant

Question.3 Can you find a plant in your house or in your neighbourhood, which has a long but a week stem? Write its name. In which category would you classify it?

Answer: In our house or in our neighbourhood, the plant found with a long but week stem is money plant. This plant can be classified as a climber because it takes support on its neighbouring structures and climb up.

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

1. The stem provides support to the plant.
2. It conducts water and minerals from the roots of the plant to its leaves and various other parts.
3.It also transports food prepared in leaves to the other parts of the plants.

Question.5. Which of the following leaves have reticulate venation?

Wheat, tulsi, maize, grass, coriander (dhania) and china rose

Answer: The leaves that have reticulate venation are tulsi, coriander (dhania) and China rose.
 

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

Answer: If a plant has fibrous root, the venation present in its leaves is parallel.
 

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

Answer: Plants having leaves with reticulate venation will have tap roots.
 

Question.8. Is it possible for you to recognise the leaves without seeing them? How?

Answer: Yes, it is very much possible to recognise leaves without seeing them. If roots of the plants are identified then the leaves of the same plant can be identified easily. If a plant has fibrous roots, then the leaves of the plant will have parallel venation. If a plant has tap root, then the leaves of the plant will have reticulate venation.

Q9. Write the names of the parts of a flower.

Answer: Names of the parts of a flower are:

Sepals, petals, stamen (filament and anther) and pistil

(stigma, style and ovary)

Question.10 Which of the following plants have you seen? Of those that you have seen, which one have flowers?

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

Answer: All the plants mentioned here bear flowers. Plants like grass, tulsi and pipal bear small very flowers.

Question.11 Name the part of the plant which produces its food. Name this process.

Answer: In plants, food is produced in leaves by the process of photosynthesis.
 

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

Answer: In the flower, ovary is found in the swollen and lowermost of the pistil.

Question.13 Name two flowers, each with joined and separated sepals.

Answer: Flowers with joined sepals are: China rose and tomato. Flowers with separate sepals are: Rose and jasmine.