Which of the following methods is most effective for determining the chemical pathway of a physiological process?

In trees,the death of protoplasm is essential for a vital function such as

The end products of respiration in plants are:

Which of the following reasons explain why plants do not have specialized respiratory organs?
$I-$ Each plant part takes care of its own gas exchange needs.
$II-$ There is very little transport of gases from one plant part to another.
$III-$ The rate of respiration in plants is much slower compared to animals.
$IV-$ Plants have a higher requirement for gas exchange.
$V-$ During photosynthesis,the plant's requirement for oxygen from the atmosphere increases.
$VI-$ In large,dense plants,gases can diffuse over long distances.
$VII-$ In plants,each living cell is located very close to the plant surface.

Which of the following chemical equations represents aerobic respiration?

For which of the following processes is the presence of chlorophyll not necessary?