diagram modeling the pathway by which a nitrogen atom in a protein in a bird can become incorporated into a protein in a plant.

Name the essential element involved in each process: changes the osmotic potential in guard cells as they swell or shrink, present in all nucleotides and amino acids, carries electrons in chlorophyll, present in cytochromes, present in plastocyanins, involved in nitrogen metabolism, present in the water-splitting enzyme of photosystem II, present in ATP, present in the middle lamella, and important in regulating the activity of many enzymes.

Explain how coumarins are usually stored in the vegetable in an un-elicited tissue, compared to a vegetable under conditions of biotic (or abiotic) stress in which, for example, leaf tissue disruption occurs. What is the relationship of this condition to the regulation of coumarin biosynthesis? Describe how compartmentalization / accumulation of this metabolite occurs in the cell and point out a biosynthetic step in which key enzymes are involved in this condition.

Identify major pathways where moleculescan be redirected or converted into usefulcell products.