Answer:
A thick vein in the middle of the leaf is called midrib.
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 3.
Name the female part of a flower. Write names of its parts and draw a diagram.
Q 4.
Why do we see dew drops on leaves in the early morning?
Q 6.
Why does white flowers bloom at night?
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.
What are tap roots?
Q 15.
What are petals? Why are they generally coloured?
Q 16.
Name two flowers, each with joined and separates sepals.
Q 17.
What are creepers? Write an example.
Q 18.
Name a plant that eats insect.
Q 19.
Name the types of roots shown in the Fig. 7.7.
Q 20.
Explain the main functions of leaf.
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.
If a plant has leaves with reticulate venation, what kind of roots will it have?
Q 23.
Name the part of the plant which produces its food. Name this process.
Q 24.
In which part of a flower you are likely to find the ovary?
Q 25.
Name the process by which leaves can prepare their food.
Q 26.
Name two plants which have fibrous root.
Q 27.
What are fibrous roots?
Q 28.
What are shrubs? Give two examples.
Q 29.
How many kinds of plants are there?
Q 30.
Give names of two plants which have tap root.
Q 31.
What are unisexual and bisexual flowers?
Q 32.
What are the major parts of plants?
Q 34.
Does the stem prepare food for any plant?
Q 35.
What are sepals? What are their functions?
Q 37.
Explain an activity to show that stem conducts water and other substances.
Q 38.
What is the relation between leaf venation and the type of roots?
Q 39.
Name the male part of a flower. Write names of its parts and draw a diagram.
Q 40.
Explain an activity to test the presence of starch in a leaf.
Q 41.
Name the part of the plant which produces its food. Name this process.
Q 42.
Give two examples of shrubs.
Q 43.
Give two examples of trees.
Q 44.
Classify plants and give an example of each.
Q 45.
What are unisexual and bisexual flowers?
Q 46.
Are all the plants same in size?
Q 48.
How many types of leaf venation are there?
Q 49.
Where does the photosynthesis take place in plants?
Q 50.
Name various parts of stamen.
