6 primary functions of digestive system: 1. Ingestion- food intake 2. Secretion 3. Digestion- mechanical & chemical breakdown of food Mechanical Mastication- first step. Enables mixing with saliva to form bolus to be swallowed. Regulated by CNS. Deglutition Mixing/Churning Peristalsis- movement of muscles within GI tract that facilitates movement of food Chemical- Hydrolysis (using H2O) of macromolecules into monomers (residues) carried out by digestive enzymes produced by salivary glands
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functions like digestion of food‚ assist in the process of providing cellular energy‚ support the brain functions‚ repairing and healing processes within the body‚ breaking down toxins‚ detoxification of blood. The properties of enzymes are that they reduce the amount of energy needed for molecules to react together Two examples of enzymes are: Digestive Enzymes Digestive enzymes are secreted by the body that helps in digestion of food. The names of enzymes that help in digestion are: •Amylase:
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The comparison and contrast of a rabbit and tigers digestive systems Rabbits are herbivores that eat grass only. Rabbits can’t eat meat because it’s easier for them to digest grass. Tigers are carnivores that eat meat only. Tigers can’t eat grass because they cannot digest the food fast enough and their digestive system in the stomach is short. The digestive system of a tiger consists of an oesophagus‚ pancreas‚ mouth‚ stomach‚ small intestine‚ caecum‚ Large intestine. The digestive system of
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stomach‚ small and large intestine‚ and the anus. There are also accessory digestive organs involved including the salivary glands‚ liver‚ pancreas‚ and gallbladder. Digestion begins in the oral cavity where the cheeks and lips press the food against the teeth‚ a process known as mastication. This is the first phase of mechanical digestion which is also aided by the tongue. There are three major pairs of salivary glands that secrete approximately 1 liter
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Bio 112 Exam #4 Homework Animal Body and How It Moves 1. Briefly describe the body of all vertebrates? A tube within a tube‚ a digestive tract- long tube from mouth to anus that is suspended in coelom‚ coelom subdivided into two cavities- separated by diaphragm in mammals and some reptiles. Peritoneal cavity- stomach‚ intestines‚ liver. Thoracic cavity- heart and lungs. All vertebrate bodies supported by internal skeleton skill around brain and vertebra around spinal cord and dorsal nerve cord
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greater with nipple-feeding‚ resulting in more effective stimulation of protein digestion activity in abomasal fluids. In addition to greater protease secretion‚ Ternouth and Roy (1978) report secretion of more abomasal acid with nipple feeding. They also found a lower level of protein nitrogen relative to total nitrogen (PN:N) in the duodenum when calves were fed with nipples‚ indicating a higher level of protein digestion in the abomasum than with bucket
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Unit 5 – Anatomy and Physiology – Assignment 3 In this assignment I will outline the anatomy and physiology of these three body systems; The Cardiovascular system‚ The Respiratory system and The Digestive system. The Cardiovascular System The cardiovascular system‚ also known as the circulatory system‚ consists of the heart‚ blood vessels and approximately 5 litres of blood. 55% of the blood is straw coloured yellow and 45% of the blood is made up of red and white blood cells and tiny particles
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(no double bonds between carbons) * Solid at room temperature * Fat has higher energy density than other nutrients * Gross energy = (kcal/g) Volatile fatty Acids * Three fatty acids are the end product of carbohydrate digestion in the ruminant * Basically gases * Energy source for ruminants * 3 types: * Acetic * Propionic * Butyric Carbohydrates
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reducing the particle size and increasing the available surface area for the digestion stage. Lime and "spent liquor" (caustic soda returned from the precipitation stage) are added at the mills to make pumpable slurry. 2. Desilication Bauxites that have high levels of silica (SiO2) go through a process to remove this impurity. Silica can cause problems with scale formation and quality of the final product. 3. Digestion A hot caustic soda (NaOH) solution is used to dissolve the aluminium-bearing
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carbohydrate. However since the stomach’s acidity is very high the salivary enzyme is inactivated. Carbohydrates do not resume their digestion until it reaches the duodenum and pancreatic amylase continues the digestive process. After being digested‚ the carbohydrates
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