The potato growing in hilly areas is bigger in size due to

Plants require water for their survival. But when watered excessively,plants die. Discuss.

When does respiration occur in plants?

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.

What is respiration? Explain about respiratory substrates.

Aerobic respiration is