WHAT IS THE SOURCE OF GLUCOSE MOLECULE THAT ARE INVOLVED IN CELLULAR RESPIRATION IN ANIMALS ?

Digested carbohydrates are the source of simple sugars. and the stored glycogen also can be converted into glucose when it necessary.

All the foods are the good source of glucose but food like rice,potato,groundnut and any type of food which grow in to the ground are the better source of glucose but the best source of glucose are sugar,jaggary and sweets .

i can prove my answer by taking an ex. of A dibetic patient.When we eat sweets means glucose.our pancreas start producing insuline which are produced by beta cell to convert extra glucose into the form of glycogen and store

it . In case of dibetise the insuline production stops which increase sugar level or glucose level and all those name of food which are mentioned above sequencely are harmfull to a dibetic patient. it means these food have high glucose level respectively.

The fact is that the glucose molecule are goten from the cooked starch acted on by ptyalin.

Should be from external stuff, like eating. We eat foods which have sugars which are broken down to glucose, the simplest sugar. Or something like that anyway. Also, you left caps lock on.

It comes from the food we eat such as grains, dairy, fruits and vegetables.

It's the food you eat.