(b) What is the fate of these nutrients after digestion?
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Answers
Answer:
When the chyme is fully digested, it is absorbed into the blood. 95% of nutrient absorption occurs in the small intestine. Water and minerals are reabsorbed back into the blood in the colon (large intestine) where the pH is slightly acidic about 5.6 ~ 6.9.
Explanation:
Your diet provides the nutrients you need to maintain health. Some of these nutrients are too large to be useful to your body without further processing, and your digestive system accomplishes this by breaking them down to a size small enough to enter your bloodstream. Once in your blood, the digested nutrients travel throughout your body to the cells that need them.
Carbohydrates
The sugars and starches that make up carbohydrates are the main source of energy for your cells. In their simplest form, carbohydrates are monosaccharides, or single sugar units. They can also exist as disaccharides, made up of two monosaccharides, or starches, composed of many monosaccharides – specifically glucose – linked together into a large molecule. The digestive enzyme amylase, secreted from your salivary glands and pancreas, reduces starch molecules to single glucose units, while sugar-specific enzymes from your small intestine break apart disaccharides into individual sugars. Once these carbohydrates are fully digested, the cells lining your small intestine absorb them and transport them to your bloodstream.
Fats
Your digestive system breaks down your dietary fats to fatty acids and monoglycerides. Because your digestive juices are water-based, the fats you eat can’t mix well with them until they combine with a fluid called bile. Bile, produced in your liver and released into your small intestine, separates fat particles into tiny droplets that can mix with water
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