Question

Q3-The leaves of a plant combine ‘A’ taken from air and ‘B’ taken from soil in the presence of sunlight to make a simple food ‘C’ by the process called ‘D’. Some of the simple food ‘C’ gets converted in to ‘E’ which is stored in various parts of a plant including its leaves. i) What is gas ‘A’ and liquid ‘B’? ii) Name the foods ‘C’ and ‘E’. iii) What is the process ‘D’ ? iv) How can you test the presence of ‘E’ in plants? Which part of alimentary canal is involved in absorption of water?

Answer 1

Answer:

answer of 1 is c

answer of 2 is e

Answer 2

1. 'A' is CO₂ gas and 'B' is WATER.

2. 'C' is GLUCOSE and 'E' is STARCH.

3. 'D' is the PHOTOSYNTHESIS process.

4. We can test presence of 'E' (STARCH) in plants by IODINE TEST.

  Firstly we remove the chlorophyll from the leaf by boiling it in alcohol then we put two drops of IODINE SOLUTION then its color changes to blue which indicates that there is presence of STARCH.

LARGE INTESTINE is involved in absorption of water.

hope this helps u...............