Read the following sentences about photosynthesis:
(i) Sunlight, carbon dioxide, chlorophyll and water are necessary.
(ii) Oxygen is absorbed.
(iii) Leaves carry out photosynthesis.
(iv) Proteins are made during photosynthesis.
Choose the correct pair of sentences that are true to photosynthesis.
Important Questions on Getting to Know Plants
Solve the riddle given below:
“I have a green tender stem, and I am much shorter than you. Who am I?”
Solve the riddle given below:
I come out first from the seed when it is soaked in water. I provide anchorage to plants. Who am I? Write another function that I perform.
Match the parts of plant given in Column I with their function in Column II.
| Column I | Column II | ||
| (a) | Flower | (i) | Excretion |
| (b) | Leaf | (ii) | Photosynthesis |
| (c) | Stem | (iii) | Reproduction |
| (d) | Root | (iv) | Bears branches |
| (v) | Anchorage |
Boojho wanted to test the presence of starch in leaves. He performed the following steps.
(1) He took a leaf and boiled it in water.
(2) He placed the leaf in a petri dish and poured some iodine over it.
He did not get the expected result. Which step did he miss? Explain.
