molecule is gradually broken down along the route • How the digestive products are taken up (absorption) • How the absorbed molecules are used by the cells (assimilation) TASK 4: Explain the structure of the ileum and the ultrastructure of the epithelium in relation to its secretory and absorptive functions. (a) Explain the characteristics of enzymes. (b) Explain the lock and key theory of enzyme action. (c) Locate and explain the role of important digestive enzymes. TASK 5: Enzymes
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the experiment (Fig. 7a). There was hyperplasia of the goblet cells in the C. albicans-infected group during the 2nd week of the experiment (Fig. 7b). Regarding to the S. iniae+C. albicans-infected fish‚ there were focal necrosis of the intestinal epithelium with mononuclear inflammatory cell infiltrations (Fig. 7c)‚ particularly during the 2nd week of the
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Hello everyone and welcome. I am Cassie Campbell; I am a video reporter with voyage health. Today we will go on a delightful journey in my mini sub that has been minimized to eight microns long and we will be traveling through the body of a young and healthy lady named Mary. We are going to start at the femoral vein and end up in her lungs. After we have explored her lungs we will then travel through her body to exit out through her nose. Warning!!! Warning!!! There is something going on and
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reason for this is cigarettes contain a large amount of chemical substances which damage the cells in human body. As‚ authors Qamar‚ Wajhul‚ and Sultana explained‚ “The most damaging effect of the cigarette smoke has been found on the lung epithelium is cell
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digestive tract mucous membranes‚ etc.) and different organs and structures (the brain‚ internal and endocrine organs‚ muscles‚ red bone marrow). Some organs and tissues are in direct contact with the environment (the lungs‚ the skin‚ gastrointestinal epithelium‚ etc.)‚ the others are internally located (the brain and spinal cord‚ the liver‚ the kidneys‚ endocrine glands‚ testes and ovaries) and have no direct contacts with the environment. The cardiovascular system
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Each hemisphere of the brain also has a cingulate gyrus part of the limbic system Limbic system includes cingulate gyrus‚ amygdala‚ and hippocampus Emotion‚ learning‚ and memory Cerebral cortex consists of sensory‚ motor‚ and association areas Association areas integrate sensory data into perception Motor outputs control target tissues The noradrenergic system originates from the locus coeruleus in the pons Its axons terminate through the brain disseminates noradrenaline throughout
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cover and protect the surface of the eye. It also lubricates the eye as it moves in the socket. 2- Cornea- the corneas structure is a transparent front window through which light enters the eyeball. It is made up of 3 main structures which are the epithelium‚ stroma and endothelium. Its function is that it performs much of the initial focusing of the image by bending or refracting the light onto the lens. 3- Sclera- its structure is the white of the eye and it is the tough outer layer and it protects
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The age-related macular degeneration (AMD) is a disease that affects the elderly population with a incidence peak over 50 years old. It can occur in two main aspects: the wet form or the dry form. The dry AMD is characterized by the absence of choroidal neovascular complications with a less dramatic evolution compared to the wet form but no less disabling. Great challenge is to understand the pathophysiology that leads to development of one AMD form respect to another and within each of the two‚
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causes bloating‚ abdominal cramping and most commonly excessive‚ sometimes dangerous‚ amounts of diarrhea. 4) Portal of entry and how the pathogen is transmitted: The mouth is the portal of entry for Salmonella. It flourishes in our intestinal epithelium and lymphoid follicles. It is transmitted through food and water. 5) Pathogenesis: LPS (lipopolysaccharide)- the endotoxin stimulates a powerful host immune response. This response causes cytokines to be release that can lead to fevers and other
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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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