In what form do plants absorb calcium from the soil? List any two calcium deficiency symptoms in plants.
What is symbiotic nitrogen fixation? Name the two protein components needed for this process. Explain their role.
List the various modes of heterotrophic nutrition in plants. Explain any two modes giving one example of each.
A section of root nodule of chickpea plant appears pink. What is this colour due to?
What type of condition does this pigment create in the nodules?
Explain the process of biological nitrogen fixation in the root nodules.
Name the respective mineral nutrient element of plants that is
(i) needed in the synthesis of auxins
(ii) is a constituent of ferredoxin
(iii) forms the core constituent of the ring structure of chlorophyll
(iv) forms the component of nitrogenase and nitrate reductase
Give information as asked about the following mineral nutrients in plants.
It is a constituent of __________
Its one typical deficiency symptom
The group of enzymes it activates
It is needed for the synthesis of _________
The form in which it is absorbed from the soil
Its deficiency effect on seed germination
In what form do plants absorb phosphorus from the soil? Name any one cell organelle and one organic molecule that require phosphorus in the cell. List any two phosphorus deficiency symptoms in leaves.
Name the organism involved in symbiotic nitrogen fixation. What are the components needed for this process? Explain their role.