Advertisements
Advertisements
Question
Given alongside is the diagram of an experimental set-up:
Would you take any step before starting the experiment? Describe this step and explain its necessity.
Solution
Before starting the experiment, it is necessary to destarch the leaves of the plant by keeping the plant in complete darkness for 48 hours. This is because if the plant is not destarched, then the experiment will give false results because starch stored previously may be detected in the leaf placed in the beaker even if no starch is produced during the experiment.
APPEARS IN
RELATED QUESTIONS
Complete the following statement by choosing the correct alternative given below :
All animals would die on the earth if there was no ______.
Fill in the blank:
Land plants obtain their carbon dioxide from the ______.
The chemical substance used to test the presence of starch in the cell of a leaf is ______.
How would you demonstrate that green plants release oxygen when exposed to light?
Given alongside is the diagram of an experimental set-up:
Will it work satisfactorily? Given reason.
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.
Why was the plant placed in the dark before beginning the experiment?
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.
Write a balanced chemical equation to represent the process of photosynthesis.
Differentiate Between:
Light reaction and Dark reaction.
Complete the following sentence with appropriate word:
________molecules of chlorophyll make one quantasome.
Choose the Odd One Out
