Question:
What are trees? Give two examples.
Answer:
The plants which are very tall and have hard and thick brown stem are called trees. The stems have branches in upper part and much above the ground. For example, mango, neem.
Getting to Know Plants
Q 1.
Write the names of the parts of a flower in sequence, from outside to inside.
Q 2.
List few plants found around your house.
Q 4.
Why does white flowers bloom at night?
Q 5.
Why do we see dew drops on leaves in the early morning?
Q 6.
Name the female part of a flower. Write names of its parts and draw a diagram.
Q 7.
Name the part of plant which helps in holding the plant in the soil.
Q 8.
What are lateral roots?
Q 10.
What is the function of a stem in a plant?
Q 12.
Name the prominent parts of a flower.
Q 14.
Name two flowers, each with joined and separates sepals.
Q 15.
What are tap roots?
Q 16.
What are creepers? Write an example.
Q 17.
Name the process by which leaves can prepare their food.
Q 18.
Name the types of roots shown in the Fig. 7.7.
Q 19.
What are fibrous roots?
Q 20.
What are petals? Why are they generally coloured?
Q 21.
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 22.
In which part of a flower you are likely to find the ovary?
Q 23.
Name two plants which have fibrous root.
Q 24.
Name a plant that eats insect.
Q 25.
Name the part of the plant which produces its food. Name this process.
Q 26.
What are shrubs? Give two examples.
Q 28.
Explain the main functions of leaf.
Q 29.
If a plant has leaves with reticulate venation, what kind of roots will it have?
Q 30.
Give names of two plants which have tap root.
Q 31.
How many kinds of plants are there?
Q 32.
Give two examples of trees.
Q 33.
How many types of leaf venation are there?
Q 35.
What are unisexual and bisexual flowers?
Q 36.
What are the major parts of plants?
Q 37.
Give two examples of shrubs.
Q 38.
Where does the photosynthesis take place in plants?
Q 39.
Does the stem prepare food for any plant?
Q 40.
What are sepals? What are their functions?
Q 41.
Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), china rose.
Q 42.
Are all the plants same in size?
Q 44.
Explain an activity to show that stem conducts water and other substances.
Q 45.
What are unisexual and bisexual flowers?
Q 46.
Explain the important functions of root.
Q 47.
If a plant has fibrous root, what type of venation are its leaves likely to have?
Q 48.
Classify plants and give an example of each.
Q 49.
Name a plant that has underground as well as aerial (above the ground) root system.
Q 50.
Why are petals colourful?
