Experiments on Photosynthesis

Complete the following sentence with appropriate word:

________molecules of chlorophyll make one quantasome.

A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.

What aspect of photosynthesis was being tested?

Given alongside is the diagram of an experimental set-up:

What alteration (s) will you make in it for obtaining expected result?

Given below is the representation of a certain phenomenon in nature. With four organisms 1-4.

1. Name the phenomenon represented.
2. Name any one organism that could be shown at No. 5.
3. Name the biological process which was the starting point of the whole chain.
4. Name one natural element which all the organisms 2-4 and even 5 are getting from No. 1 for their survival.

The chemical substance used to test the presence of starch in the cell of a leaf is ______.

Chloroplasts are called energy converters.

Choose the Odd One Out

How would you demonstrate that green plants release oxygen when exposed to light?