Answer:
The part (stalk) of a leaf by which it is attached to the stem is called petiole.
Getting to Know Plants
Q 2.
Name a plant that eats insect.
Q 3.
What are petals? Why are they generally coloured?
Q 4.
Name the part of the plant which produces its food. Name this process.
Q 5.
What are lateral roots?
Q 6.
What are herbs? Give two examples.
Q 7.
What is the relation between leaf venation and the type of roots?
Q 9.
What is leaf venation?
Q 10.
Name the process by which leaves can prepare their food.
Q 11.
Where does the photosynthesis take place in plants?
Q 12.
Does the stem prepare food for any plant?
Q 13.
How can one destarch the leaves of potted plant without plucking, them?
Q 14.
Name two plants that belong to herbs.
Q 15.
Give two examples of shrubs.
Q 16.
What is the function of a stem in a plant?
Q 17.
Name the part of the plant which produces its food. Name this process.
Q 19.
Classify plants and give an example of each.
Q 20.
What are trees? Give two examples.
Q 21.
Pitcher plant has green leaves which can prepare food by photosynthesis then why does it eat insects?
Q 22.
Explain that sunlight is essential for photosynthesis.
Q 24.
Why does white flowers bloom at night?
Q 25.
Leaves need oxygen and carbon-dioxide (for photosynthesis). How do they get these gases?
Q 26.
Are all the plants same in size?
Q 27.
What is transpiration?
Q 28.
Where does the photosynthesis take place in plants?
Q 30.
What are shrubs? Give two examples.
Q 31.
Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), china rose.
Q 32.
What are the raw materials for photosynthesis?
Q 33.
Give names of two plants which have tap root.
Q 34.
What are fibrous roots?
Q 35.
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 sepals and petals 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.
Q 36.
If a plant has fibrous root, what type of venation are its leaves likely to have?
Q 37.
If a plant has leaves with reticulate venation, what kind of roots will it have?
Q 38.
Does the stem prepare food for any plant?
Q 39.
Name a plant that has underground as well as aerial (above the ground) root system.
Q 40.
What do you mean by a complete and incomplete flower?
Q 41.
Give two examples of trees.
Q 44.
Why are petals colourful?
Q 45.
Is it possible for you to recognise the leaves without seeing them? How?
Q 47.
Name the various parts of pistil.
Q 48.
How many kinds of plants are there?
Q 49.
What are sepals? What are their functions?
Q 50.
Name various parts of stamen.
