NCERT Class VI Science Solutions: Chapter 7 – Getting to Know Plants Part 5 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 16:

Observe the picture of an activity given as Fig, carried out with leaves of plants and polythene bag.

Result for Leaf (Q)

Now answer the following:

  1. Which process is demonstrated in the activity?
  2. When will this activity show better results - on a bright sunny day or a cloudy day?
  3. What will you observe in the polythene bag after a few hours of setting up the activity?
  4. Mention any one precaution you must take while performing this activity.

Answer:

  1. Transpiration.
  2. On a bright sunny day.
  3. Small drops of water inside the polythene cover.
  4. The set-up must be airtight/polythene bag must be dry/the twig must he fresh with 10 - 12 leaves.

Question 17:

Identify the wrong statements and correct them.

  1. Anther is a part of the pistil.
  2. The visible parts of a bud are the petals.
  3. Lateral roots are present in a tap root.
  4. Leaves perform the function of transpiration only.

Answer:

  1. Wrong - Anther is a part of the stamen.
  2. Wrong - The visible parts of a bud are the sepals.
  3. Correct.
  4. Wrong - Leaves also perform photosynthesis.

Question 18:

Solve the crossword given in Fig, as per the clues given below it:

Result for Crossword

Across:

1. The term that describes upward movement of water in a stem.

3. The part of leaf which is attached to the stem.

5. This part is attached to the tip of filament.

Down:

1. Plants that are weak and spread on the ground.

2. Ovules are present in this part of flower.

4. Is the broad part of leaf.

Answer:

Result for Crossword (A)

Across:

1. The term that describes upward movement of water in a stem – Conduction.

3. The part of leaf which is attached to the stem - Petiole

5. This part is attached to the tip of filament - Anther

Down:

1. Plants that are weak and spread on the ground - Creepers

2. Ovules are present in this part of flower - Ovary

4. Is the broad part of leaf - Lamina

Question 19

Fill in the blanks with the terms that are listed below:

Anther, male, ovary, ovule, petals, pistil, stamen, filament.

Sepal, ________, stamens and ________ are the parts of a flower. Stamen is made up of ________and ________and it represents the ________ part of the flower. The female part of the flower is called the ________. The basal, swollen part of the pistil is called the ________ which contains the ________.

Answer:

Sepal, sepals, stamens and petals are the parts of a flower. Stamen is made up of pistil and filament and it represents the anther part of the flower. The female part of the flower is called the male. The basal, swollen part of the pistil is called the pistil which contains the ovary.

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