Vani believes that carbon dioxide is essential for photosynthesis. She puts an experimental setup Class 7

Vani believes that carbon dioxide is essential for photosynthesis. She puts an experimental setup Class 7

Vani believes that 'carbon dioxide is essential for photosynthesis'. She puts an experimental set-up, as shown in Fig. 10.11, to collect evidence to support or reject her idea. Class 7

Answer the following questions.

(i) In which plant(s) in the above setup(s) will starch be formed?

Answer:

Only in plant kept in sunlight with carbon dioxide (a), starch will be formed.

(ii) In which plant(s) in the above setup(s) will starch not be formed?

Answer:

The starch will not be formed in setup(s) (b), (c) and (d).

(iii) In which plant(s) in the above setup(s) will oxygen be generated?

Answer:

Oxygen will be generated in plants in set-up (a), kept in sunlight with carbon dioxide.

(iv) In which plant(s) in the above setup(s) will oxygen not be generated?

Answer:

Oxygen will not be generated in plants in set-up(s) (b), (c) and (d).