Salivary amylase is inactivated by stomach acid in the stomach and to a small extent‚ it continues breaking down starch (but there’s no enzymatic activities on carbohydrates in the stomach). An intestinal enzyme‚ pancreatic amylase‚ continues the activity
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canal does the pancreas secrete pancreatic juice? 13 What is the function of bile in digestion? 14 State three ways in which the absorbing surface of the small intestine is increased. 15 Into what body fluids do (a) glucose‚ (b) fatty acids‚ glycerol (c) amino acids pass? 16 Fill in the missing words.. The blood from the intestine goes first to the …….. before entering the general circulation. If the glucose concentration in the blood is above a certain level‚ it is changed to ……..
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localized in the stomach. This abdominal discomfort usually takes place in the stomach and intestines. This condition is known as the irritable bowel syndrome. Irritable bowel syndrome‚ commonly known as (IBS)‚ is a diet-related disease that causes significant abdominal discomfort involving the entire digestive tract (Martin Hughes‚ n.d.). In simpler terms‚ it is a functional disorder whereby the large intestine fails to function properly as it
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This transports blood from the small intestine to the liver. Some glucose is distributed around the body and used during respiration. Excess glucose is stored in the liver or in muscle as glycogen. Amino acids are used to build cell protoplasm and to repair damaged tissues. They are also used
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absorption‚ and metabolism; while the second half focused on pathological stress and kidney disease. Protein digestion occurs in the stomach and small intestine. When a protein reaches the stomach it is denatured by hydrochloric acid. Once the protein is digested pepsin breaks apart the denatured protein into peptides. Peptides move into the small intestine where they encounter an enzyme that digest the peptides into di- or tripeptides‚ then into single amino acids. Once the protein is digested into
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hormones‚ enzymes‚ and waste products. Lipid absorption. Lymphatic vessels such as lacteals in the intestines absorb and transport large molecules‚ fats‚ and lipids in the digestive system mainly in the form of lipoprotein such as chylomicrons. The lymphatic system absorbs lipids and other substances from the digestive tract through lymphatic vessels called lacteals located in the lining of the small intestine. Lipids enter the lacteals and pass through the lymphatic vessels to the venous circulation.
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other organsims‚ many which are not suitable for human tissues therefore they must be broken down and reassembled in a form that is suitable * Many molecules in foods are too large to be absorbed by the villi in the small intestine‚ the large molecules have to be broken down into small molecules that can then be absorbed by diffusion‚ facilitated diffusion or active transport. 6.1.2 explain the need for enzymes in digestion enzymes speed up the rate of digestion 6.1.3 state the source‚ substrate
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directly linked to an immune response. With Crohn’s the immune system launches a direct attack on the digestive tract‚ leading to inflammation which can occur anywhere from the mouth to the rectum; although it is most commonly restricted to the small intestine. This constant state of inflammation causes physical damage to the lining of the area of the digestive tract affected‚ which leads to pain‚ ulceration‚ abcesses‚ along with frequent‚ watery bowel movements often accompanied by blood. Vomiting
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nutrients to feed the entire body. Food passes through a long tube inside the body known as the alimentary canal or the gastrointestinal tract (GI tract). The alimentary canal is made up of the oral cavity‚ pharynx‚ esophagus‚ stomach‚ small intestines‚ and large intestines. In addition to the alimentary canal‚ there are several important accessory organs that help your body to digest food but do not have food pass through them. Accessory organs of the digestive system include the teeth‚ tongue‚ salivary
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Chapter 22: Nutrition and Digestion Short-Answer Questions 1) What types of foods are characteristic of the diets of carnivores‚ herbivores‚ and omnivores? Answer Carnivores – have a diet that consists of meat which they get by killing and consuming other living animals‚ other animals that have died‚ or by sucking the fluids of other animals. Herbivores – have a diet that consists of eating parts of plants such as leaves‚ fruit‚ stems‚ roots‚ or by extracting fluids from plants and consuming
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