<P> Digestion ' is the breakdown of carbohydrates to yield an energy rich compound called ATP . The production of ATP is achieved through the oxidation of glucose molecules . In oxidation , the electrons are stripped from a glucose molecule to reduce NAD+ and FAD . NAD+ and FAD possess a high energy potential to drive the production of ATP in the electron transport chain . ATP production occurs in the mitochondria of the cell . There are two methods of producing ATP : aerobic and anaerobic . In aerobic respiration , oxygen is required . Oxygen plays a key role as it increases ATP production from 4 ATP molecules to about 30 ATP molecules . In anaerobic respiration , oxygen is not required . When oxygen is absent , the generation of ATP continues through fermentation. There are two types of fermentation : alcohol fermentation and lactic acid fermentation . </P>
<P> Digestion ' is the breakdown of carbohydrates to yield an energy rich compound called ATP . The production of ATP is achieved through the oxidation of glucose molecules . In oxidation , the electrons are stripped from a glucose molecule to reduce NAD+ and FAD . NAD+ and FAD possess a high energy potential to drive the production of ATP in the electron transport chain . ATP production occurs in the mitochondria of the cell . There are two methods of producing ATP : aerobic and anaerobic . In aerobic respiration , oxygen is required . Oxygen plays a key role as it increases ATP production from 4 ATP molecules to about 30 ATP molecules . In anaerobic respiration , oxygen is not required . When oxygen is absent , the generation of ATP continues through fermentation. There are two types of fermentation : alcohol fermentation and lactic acid fermentation . </P>
where does the initial breakdown of glucose occur
where does the initial breakdown of glucose occur
mitochondria of the cell
mitochondria of the cell