Functions of Mineral Elements — Prelims Questions

Which of the following mineral elements is a constituent of chlorophyll and also activates enzymes of respiration and photosynthesis?

Deficiency symptoms of which of the following elements first appear in older, senescent leaves?

Which micronutrient is essential for the photolysis of water during photosynthesis?

Which of the following elements is a component of the middle lamella and is also required for spindle formation during cell division?

A plant shows stunted growth, dark green leaves, and purplish coloration on the underside of older leaves. This indicates a deficiency of which mineral element?

Which of the following pairs of elements are components of ferredoxin and cytochromes, respectively, and are involved in electron transport?