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.
List few plants found around your house.
Q 2.
Write the names of the parts of a flower in sequence, from outside to inside.
Q 3.
What are trees? Give two examples.
Q 4.
Why do we see dew drops on leaves in the early morning?
Q 5.
Name the female part of a flower. Write names of its parts and draw a diagram.
Q 6.
What is the function of a stem in a plant?
Q 7.
Why does white flowers bloom at night?
Q 9.
What is transpiration?
Q 10.
Where does the photosynthesis take place in plants?
Q 11.
Name the part of plant which helps in holding the plant in the soil.
Q 12.
Name the prominent parts of a flower.
Q 13.
What are sepals? What are their functions?
Q 14.
Name various parts of stamen.
Q 15.
Classify plants and give an example of each.
Q 17.
Where does the photosynthesis take place in plants?
Q 18.
Name the various parts of pistil.
Q 20.
Name two flowers, each with joined and separates sepals.
Q 21.
What are tap roots?
Q 23.
What are unisexual and bisexual flowers?
Q 24.
Why are petals colourful?
Q 25.
Leaves need oxygen and carbon-dioxide (for photosynthesis). How do they get these gases?
Q 26.
Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), china rose.
Q 27.
In which part of a flower you are likely to find the ovary?
Q 28.
Give two examples of shrubs.
Q 29.
Name the process by which leaves can prepare their food.
Q 30.
Name the types of roots shown in the Fig. 7.7.
Q 31.
Does the stem prepare food for any plant?
Q 32.
Pitcher plant has green leaves which can prepare food by photosynthesis then why does it eat insects?
Q 33.
Can you find a plant in your house or in your neighbourhood which has a long but a weak stem? Write its name. In which category would you classify it?
Q 34.
How many kinds of plants are there?
Q 35.
What is leaf venation?
Q 36.
Name a plant that eats insect.
Q 37.
Is it possible for you to recognise the leaves without seeing them? How?
Q 38.
Give names of two plants which have tap root.
Q 39.
Are all the plants same in size?
Q 42.
What are fibrous roots?
Q 43.
What are petals? Why are they generally coloured?
Q 45.
What are herbs? Give two examples.
Q 46.
What are shrubs? Give two examples.
Q 47.
Name a plant that has underground as well as aerial (above the ground) root system.
Q 48.
How can one destarch the leaves of potted plant without plucking, them?
Q 49.
What do you mean by leaf venation? Explain various types of leaf venation with example.
Q 50.
Explain the important functions of root.
