Question:
Explain an activity to show that stem conducts water and other substances.
Answer:
Take some water in a glass. Add few drops of red ink to the water. Cut the stem of a herb plant from its base. Put it in the glass as shown in figure. We will see that some parts of the stem become red. This activity shows that stem conducts water.
Getting to Know Plants
Q 2.
Name the part of the plant which produces its food. Name this process.
Q 4.
What are herbs? Give two examples.
Q 5.
What is the relation between leaf venation and the type of roots?
Q 6.
Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), china rose.
Q 7.
Name a plant that eats insect.
Q 8.
What is leaf venation?
Q 9.
Where does the photosynthesis take place in plants?
Q 10.
What is transpiration?
Q 11.
What are lateral roots?
Q 12.
Does the stem prepare food for any plant?
Q 13.
What are petals? Why are they generally coloured?
Q 14.
Name two plants that belong to herbs.
Q 15.
Pitcher plant has green leaves which can prepare food by photosynthesis then why does it eat insects?
Q 17.
Name the process by which leaves can prepare their food.
Q 18.
Where does the photosynthesis take place in plants?
Q 19.
Classify plants and give an example of each.
Q 20.
What are shrubs? Give two examples.
Q 21.
Why are petals colourful?
Q 22.
How can one destarch the leaves of potted plant without plucking, them?
Q 23.
How many kinds of plants are there?
Q 24.
Give two examples of shrubs.
Q 25.
What are the raw materials for photosynthesis?
Q 26.
Does the stem prepare food for any plant?
Q 28.
Explain that sunlight is essential for photosynthesis.
Q 29.
What is the function of a stem in a plant?
Q 30.
If a plant has fibrous root, what type of venation are its leaves likely to have?
Q 31.
Name the part of the plant which produces its food. Name this process.
Q 32.
Why does white flowers bloom at night?
Q 33.
What do you mean by a complete and incomplete flower?
Q 34.
Leaves need oxygen and carbon-dioxide (for photosynthesis). How do they get these gases?
Q 35.
Are all the plants same in size?
Q 37.
Name a plant that has underground as well as aerial (above the ground) root system.
Q 38.
Is it possible for you to recognise the leaves without seeing them? How?
Q 39.
Give names of two plants which have tap root.
Q 40.
What are trees? Give two examples.
Q 41.
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 42.
If a plant has leaves with reticulate venation, what kind of roots will it have?
Q 43.
Give two examples of trees.
Q 45.
What are fibrous roots?
Q 46.
Name the various parts of pistil.
Q 49.
What are the major parts of plants?
Q 50.
What are sepals? What are their functions?
