Question

1.a)the leaves of a plant first prepare a food A by photosynthesis, then food A gets converted in to food B.What are A and B?
b) Write two adaptation s of leaf for photosynthesis.
c) Leaves of a healthy potted plant were coated with Vaseline to block the stomata. Will this plant remain healthy for long? State why?

Answer 1

1. Food A represents starch and Food B represent  glucose

2. a. The presence of a green pigment called chloroplast which contains chlorophyll.

   b. The leaves must have a broad surface for the absorption of enough sunlight

others could be; the presence of many mesophyll cells and the presence of stomata for the purpose of gaseous exchange.

3. NO. This is because plants uses carbondioxide and other raw materials for the manufacture of thier own  food so as a result if the stomata is blocked the leaves will not be able to absorb carbondioxide from the atmoshpere thus the plant does not remain healthy for long.