path of glucose?

Question

Describe the path glucose takes as it enters the body from the outside environment and ends in the cell’s mitochondria.

Answer 1

Glucose is present most in grape and other fruits. Most of the glucose we take in is in the form of starch. Amylase in saliva breaks down starch to maltose. In the intestine, amylase and maltase convert starch to glucose, which is then transported into blood circulation. Cells take up glucose to form glycogen and fat. During respiration, glucose is broken up to pyruvate which enters the mitochondria, where it is metabolised to acetyl-CoA and eventually to CO2 to generate ATP.

Answer 2

1

Answer 3

2

Answer 4

Glucose needs to be absorbed.

first is the mouth, quite a bit of the vast sugars are absorbed this way.

then your stomach absorbs as much as it can while breaking down the tough fibres and proteins, then it can also be absorbed through the small intestine, this is the final stage of absorbtion.

after that you have sugar in your blood stream, a small organ called the pancreas produces the chemical insulin, it allows glucose to be absorbed by cells anywhere in the body. The blood glucose is distributed accordingly to the consumption of the body part, for instance the brain can only consume BG and it gets the most (20%).

Answer 5

http://en.wikipedia.org/wiki/Glycolysis

http://en.wikipedia.org/wiki/Gluconeogenesis