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.
Villi in the small intestine absorbs nutrients and completes the breakdown of food. Factors of its structure that help it function include . Large surface area (provides more surface area for exchange to take place) Thin wall (reduces the distance that materials need to move) Moist (assists the transport of materials across the exchange surface)