Discuss the light and dark stages of photosynthesis

Light stage

It occurs in the grana/granum of the chloroplast; the chlorophyll in the chloroplast traps; light energy; used to split water molecules into oxygen molecules and hydrogen ions; in the process called photolysis.

The hydrogen ions produced enter the dark stage, while oxygen is released to  the atmosphere/re-utilized by the plant in respiration; some of the light energy absorbed by chlorophyll molecule is used in the formation of Adenosine triphosphate (ATP), used later in the dark stage;

Dark stage

It involves the combination of carbon (IV) oxide and hydrogen ions; in a series of enzymes catalyzed; reactions to form simple sugar; (e.g. sucrose) in the process called carbon (iv) oxide fixation; the process required energy which is provided by ATP; (formed during the light stage); some of the sugars formed are directly utilized; by the plant cells while the rest are converted to starch; for storage.

Amino acids; and fatty acids; are also formed during this stage of photosynthesis;