Who is considered  as the Father of Plant Physiology?.

______________ is the structrual constituent of cytochromes.

The chief source of nitrogen to plant is___________in the soil

Inorganic nutrients are present in the soil in the form of

The absorption of mineral ions which is carriedout purely by physical process

Which of the following elements are essential for photolysis of water?

The chemical carotene obtained from carrot is

'Exanthema' in citrus tree is as a result of the deficiency of

The most abundant element present in the plant is

Phosphorous is a structural component of