Table of Contents
Which nutrients requires the greatest time for digestion?
|Term Where is the epiglottis located?||Definition Throat|
|Term Which of the following nutrients requires the greatest time for digestion?||Definition Fats|
|Term Which of the following is a feature of the lymphatic system?||Definition It carries fats away from the intestines|
Which nutrient is most associated with increased production of intestinal gas?
Most foods that contain carbohydrates can cause gas. By contrast, fats and proteins cause little gas. The sugars that cause gas are raffinose, lactose, fructose, and sorbitol.
Why is most food digested?
Why is digestion important? Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body.
What nutrients are absorbed in the stomach?
The three major classes of nutrients that undergo digestion are:
- Proteins. These are degraded into small peptides and amino acids before absorption.
- Lipids (fats). These are degraded into fatty acids and glycerol.
- Carbohydrates. Some carbohydrates are degraded into simple sugars, or monosaccharides (e.g., glucose ).
What nutrients require the least amount of digestion?
Carbohydrates, for example, spend the least amount of time in the stomach, while protein stays in the stomach longer, and fats the longest. As the food dissolves into the juices from the pancreas, liver, and intestine, the contents of the intestine are mixed and pushed forward to allow further digestion.
Which of the following enzymes digest carbohydrates?
|Enzyme||Produced By||End Products|
|Salivary amylase||Salivary glands||Disaccharides (maltose), oligosaccharides|
|Pancreatic amylase||Pancreas||Disaccharides (maltose), monosaccharides|
|Oligosaccharidases||Lining of the intestine; brush border membrane||Monosaccharides (e.g., glucose, fructose, galactose)|
What is the cause of intestinal gas?
Excess upper intestinal gas can result from swallowing more than a usual amount of air, overeating, smoking or chewing gum. Excess lower intestinal gas can be caused by eating too much of certain foods, by the inability to fully digest certain foods or by a disruption in the bacteria normally found in the colon.
Why is gas produced in the large intestine?
The undigested or unabsorbed food then passes into the large intestine, where harmless and normal bacteria break down the food. This process produces hydrogen, carbon dioxide, and, in about one-third of all people, methane gases, which are released through the rectum.
What is the most important function of digestion?
Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body.
What is digestion of food?
Digestion involves the mixing of food, its movement through the digestive tract, and the chemical breakdown of the large molecules of food into smaller molecules. Digestion begins in the mouth, when we chew and swallow, and is completed in the small intestine.
How many nutrients do we have?
There are six major nutrients: Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water.
Which nutrient is absorbed mainly in the large intestine?
Sodium is actively absorbed in the colon by sodium channels. Potassium is either absorbed or secreted depending on the concentration in the lumen. The electrochemical gradient created by the active absorption of sodium allows for this.
How are nutrients absorbed in the digestive system?
Nutrient Absorption in the Digestive System 1 Carbohydrates. An average American adult eats about half a pound of carbohydrate each day. 2 Protein. Foods such as meat, eggs, and beans consist of giant molecules of protein that must be digested by enzymes before they can be used to build and repair body 3 Vitamins. 4 Water and Salt.
Why are carbohydrates important to the digestive system?
The Essential Nutrients Carbohydrates, protein, fats, vitamins, water, and even salt are essential nutrients because, as the Australian Department of Health explains, they provide the body “with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes.”
What foods can be digested in the digestive system?
An average American adult eats about half a pound of carbohydrate each day. Some of our most common foods contain mostly carbohydrates. Examples are bread, potatoes, pastries, candy, rice, spaghetti, fruits, and vegetables. Many of these foods contain both starch, which can be digested and fiber, which the body cannot digest.
What are the hormones that control the digestive system?
The hormones that control digestion are gastrin, secretin, and cholecystokinin (CCK): Gastrin causes the stomach to produce an acid for dissolving and digesting some foods.