It causes premature ageing of the skin by a process called glycation. This is where excess sugar in the blood attaches itself to lipids, nucleic acids and proteins (especially your collagen) to form âadvanced glycation end Â­productsâ or AGEs, which accelerate the ageing process and so cause wrinkly skin.
What is the role of villi in digestive system? the role of the villi is that it increases the surface area so that when food passes through the small intestine the food will get caught on the villi and the nutrients are ab â¦ sorbed into the blood.
Villus capillaries collect the simple sugars and amino acids taken in by the villi into the bloodstream. Villus lacteals are lymph capillaries that collect the absorbed fatty acids and glycerol and take it to the rest of the body through the lymph fluid.Villi also help the food to move along the digestive tract.