The glass tube placed in the bell jar in the experimental set-up is comparable to which of the following respiratory organ(s)?
The figure given below represents an experimental set up with a weighing machine to demonstrate a particular process in plants. The experimental set up was placed in bright sunlight. Study the diagram and answer the following questions :
(a) Name the process intended for study.
(b) Define the above mentioned process.
(c) When the weight of the test tubes A and B is taken before and after the experiment, what change is observed ? Justify.
(d) What is the purpose of keeping the test tube B in the experimental set up ?
In an experiment three glass bell jars were set-up as shown in the diagram.
At the end of the experiment, which bell jar has the most oxygen and which has the least?