Question

What are the end products of the digestion of starch, proteins and fats respectively?

Answer 1

Hint: The process of digestion involves breaking down large, insoluble food molecules into smaller molecules that may be absorbed into the bloodstream. Many digestive fluids and enzymes are used in this process, including saliva, mucus, bile, and hydrochloric acid, among others.
The process of absorbing or assimilating chemicals into cells or across tissues and organs via diffusion or osmosis is known as absorption.

Complete answer:
Digestion is the mechanical and biological conversion of complex dietary molecules to simple absorbable forms, which is carried out by our digestive system.
Whatever we eat contains varying amounts of carbohydrates, proteins, and lipids. They're all broken down into separate parts.
Carbohydrates - Carbohydrates are an important ingredient in human nutrition. Sugar and starch are the two forms of carbohydrates that the human digestive system can process. The small intestine and three enzymes found in the mouth, Lactase, Sucrase, and Maltase, break down sugar in the gastrointestinal tract.
Fats- Fats stay together as a big glob of insoluble substance after reaching the stomach because they are hydrophobic. Bile juice, which contains bile salts, is used to break it down. Fats are broken down by pancreatic lipase into tiny molecules of free fatty acids and monoglycerides.
Proteins- Protein digestion occurs in the stomach with the help of protease and pepsin enzymes, which break down proteins into amino acids. The presence of hydrochloric acid in the stomach aids the process
The final products of digestion are absorbed into the body through the intestinal villi's epithelial layer.
The undigested food (faeces) enters the caecum of the large intestine through the ileo-caecal valve, which prevents faecal matter from flowing backward.

Note:
Stages of digestion-
Food enters the body through the mouth, travels into the stomach, and then into the small intestine, where it is digested.
Through microscopic holes in the small intestine, nutrients from digested food are absorbed into the bloodstream.
The undigested meal is transferred to the large intestine, where any unprocessed water or nutrients are reabsorbed.
Stools carry the remainder of the waste food product out of the body.