Which of the following minerals activate the enzymes involved in respiration?

It is a component of Nitrogenase and Nitrate reductase.

Which of the following elements is responsible for maintaining turgor in cells?

Identify the micronutrient.

Sulphur is found as a constituent in which of the following amino acids?

Which element is required in large amounts in comparison to other micronutrients and is also a constituent of proteins involved in the transfer of electrons,such as ferredoxin and cytochromes?