Question

Which of the following is a group of end products of carbohydrate digestion?
A. Glucose, galactose, maltose
B.Sucrose, galactose, maltose
C.Galactose, glucose, fructose
D. None of the above

Answer 1

Hint: Carbohydrates are the main source of energy for the body to function properly. Carbohydrates are big chains which upon digestion are broken down to simpler units. This is done with help of carbohydrate digesting enzymes.

Complete answer: The main purpose of digestion is to break down complex substances into simpler absorbable molecules.
The same goes for carbohydrates as well. Disaccharides and complex carbohydrates are further broken down into monosaccharides like galactose, glucose, and fructose, for absorption by the blood. Carbohydrate digestion begins in the mouth with the action of the enzyme amylase (ptyalin) by the breakdown of food starches into maltose.

The food is masticated and formed into a bolus which is pushed down into the stomach through the esophagus. No further enzymatic action on carbohydrates takes place in the stomach, but the remaining part of the digestion of carbohydrates is carried out in the small intestine by the enzyme – pancreatic alpha-amylase. The simple monosaccharides are readily absorbed by the blood in the large intestine.

So, the correct answer is option C. Galactose, glucose, fructose.

Note: The sugar level in the body must have a healthy balance; with the rise in sugar level in the body the pancreas secretes a hormone known as insulin. Insulin is needed to move sugar from the blood into the cells, where the sugar can be used as an energy source.