Mineral Nutriti...

In the initial phase of mineral ion absorption, there is a rapid uptake of ions into ______ space of cells. Ions absorbed in this phase are ______ exchangable. It is _____ uptake as it ______ the expenditure of metabolic energy.

Following observations are made for a plant grown under different cinditions.
I. Chloride and magnesium in soil + light $$\rightarrow$$ green plant
II. I. Chloride and magnesium in soil + dark $$\rightarrow$$ etiolated plant
III. Magnesium + light $$\rightarrow$$ green plant
IV. Intermittent light flashes + chloride $$\rightarrow$$ etiolated plant

From the above observations, it is concluded that the factors necessary for the green colour in plants are 

Which one of the following statements can best explain the term critical concentration of an essential element? 

For its action, nitrogenase requires

Select the option which completes the given equation for reductive amination.

Refer the given reaction. It represents 

Read the following statements and select the incorrect ones.

Nodules in soybean plant experts the fixed nitrogen in the form of 

Refer the given reaction. What does it depict?

One mineral activates the enzyme catalase and the other is a constituent of the ring structure of chlorophyll. These mineral are ___ and ____ respectively.