To explain: The digestion and absorption of three
Introduction: Digestion is a process by which the body fulfills its demand for energy to operate. The conversion of large insoluble molecules into smaller molecules is called digestion. Digestion typically consists of two parts. In one part, the large food chunks are broken down into smaller ones. In the second part, the smaller food particles are digested to the molecular level by the enzymes in chemical digestion Digestion process makes the biomolecules ready for absorption. The movement of digested particles from the lumen of the intestine to the extracellular fluid is called absorption.
To explain: The process of iron absorption.
Introduction: The absorption of minerals usually takes place through active transport. The intestinal absorption of the iron is regulated. The decrease of body concentration of iron gives rise to enhance uptake of the iron at intestine.
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Human Physiology: An Integrated Approach (8th Edition)
- You will only describe how proteins, carbohydrates, and lipids are digested in the body. The goal is to get to a point where there are only amino acids(from proteins), fatty acids (from lipids), and glucose (from starch). Enzymes are only part of chemical digestion. Provide a simple description of Ingestion, Movement, Mechanical digestions, absorption, and elimination related to your food. Lastly describe what glucose, amino acids, and fatty acids will be used once they are absorbed into the bloodstream.arrow_forwardThe catalytic activity of enzymes depends on the presence of appropriate environmental conditions. Pepsin is a digestive enzyme found in the stomach and facilitates the digestion of large proteins. If pepsin is removed from this acidic environment of the stomach and is instead placed in a more basic environment, it will cease to function. Describe the specific effect that a change in environmental pH will have on pepsin and explain how this change can lead to inhibition of its catalytic activity. Respond in 4 to 6 complete sentences.arrow_forwardWith the two menus provided, answer the question below: Menu 1: Roasted chicken with mashed potatoes (mostly proteins and carbohydrates) Menu 2: Pasta with alfredo saude and cheese (mostly carbohydrates, dairy products and lipids) Question: Describe the steps in the chemical digestion of the main constituents of your meal (name the enzyme (s) and other secretions involved, and what cells secrete them), all of that from the beginning to the end of digestion.arrow_forward
- Which of the following best describe protein digestion? . Protein digestion is a hydrolytic process regulated by pH changes in the gastro-intestinal track, and hormonal and enzyme releases at various stages of digestion. .. Protein digestion occurs during the gastric phase of digestion starting in the stomach. Protein digestion cleaves peptide bonds releasing peptides, and amino acids Protein digestion is a hydrolytic process involving proteases/ proteinases Protein digestion occurs at the active site of proteases and is effected by the catalytic triads.arrow_forwardNAME: Human Digestive System (1) Match the words provided to the letters in the diagram of the digestive system. Put your answer in the table: Liver Stomach Salivary glands Pancreas Rectum Mouth Oesophagus Gall Bladder Small intestines Large intestines Letter Part of Digestive System F A C B. F D. E J (2) Which of the following gives the correct order for food as it passes through the organs of the digestive system? a. Mouth, oesophagus, stomach, gall bladder, pancreas, large intestines, small intestines b. Oesophagus, epiglottis, stomach, liver, small intestines, large intestines, anus c. Mouth oesophagus, stomach, small intestines, large intestines, anus d. Mouth, liver, gall bladder, stomach, large intestines, small intestines, anus. (3) Which part of the digestive system is (4) Which part of the digestive system responsible for absorbing water: a. Small intestines contains Hydrochloric acid and is coated with mucus for its protection: b. Large intestines c. Kidneys d. Stomach a.…arrow_forwardIn order for the food to be processed and absorbed in an optimal way, there are several feedback mechanisms. One of the most important starts when the food reaches the small intestine, this is sometimes also called the intestinal phase. Describe what happens if the food that reaches the duodenum contains a lot of fat and a lot of protein. The answer must include: Which different mechanisms are affected by the respective stimuli (fat and protein) and how (increases or decreases the activity). What cell type senses stimuli and how these cells react. Which different signaling pathways (including the signaling substances involved) control the different mechanisms that are affected by the respective stimuli. Feel free to draw.arrow_forward
- Proteasas are enzymes that break down proteins. Gastric proteasas are found in the stomach; intestinal proteases are found in the small intestine. Estimate the optimum pH for these two enzymes and identify as acidic or basic: Gastric proteases: pH= ____; acidic or basic Intestinal proteases activity: pH= ____; acidic or basicarrow_forwardConsider the following nutrients: (water, simple sugar (glucose), amino acid, and fatty acid). Describe where each one is absorbed in the small intestine and which mechanism (active transport, facilitated diffusion, or simple diffusion) drives their movement into the bloodstream. Please be detailed with your explanationarrow_forwardFollow the digestive process, include both mechanical and chemical digestion of nutrients, where in the digestive tract digestion begins and ends, include organs and enzymes involved in digestion. Clearly define the mechanical and chemical aspects of digestion. Regarding storage systems-How does the body process an excess amount of carbohydrate and fat consumed?arrow_forward
- create a flow chart or diagram to illustrate the digestion and absorption of carbohydrates. The starting carbohydrate molecules are starch, sucrose, lactose, glycogen, and cellulose. What will happen to these carbohydrates once we ingest them? Include the following from your flow chart or diagram: 1) the location or site where the digestion or absorption occurs 2) the enzymes 3) the products generated at each site or locationarrow_forwardlabel of all the number of the digestive system model?arrow_forwardcreate a flow chart or diagram to illustrate the digestion and absorption of proteins. What will happen to the meat once we ingest them? Include the following from your flow chart or diagram: 1) the location or site where the digestion or absorption occurs 2) the enzymes 3) the products generated at each site or locationarrow_forward
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