Digestion. Biological & Biomedical Sciences Coursework

Annotation Summary 
Page 1:HighlightSmall intestinesHighlightStomach PeristalticTextwhat secretion causes mechanical digestion? And what macromolecule is digested?Highlightteeth, mandibles, tongue and chewing muscles that are located in the jawTextThis question is not about chemical digestion, so you should not include this in your answer. Also, youshould be specific in naming the which secretion digests which macromolecule.Textwhat secretion causes mechanical digestion? And what macromolecule is digested?HighlightChemical Digestion
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Highlightit is expected that the digestive tract of the mammal will be specialized to maximize the perquisites of theirendosymbiotic microorganisms.Highlightanaerobic microorganisms that are found in the first two chambers that break down cellulose usingfermentationTextExplain what this means.Highlightlong digestiveHighlightmicroorganisms in the rumen and reticulum that break down celluloseHighlightsmall intestinesHighlightlat and broad premolars and molars to assist in grindingHighlighthuge four-chambered organ
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Highlightsecretion of excess acids in the stomachHighlightget of the excess amino acidsTextPlease reread the question and answer the last two parts. Please use the figure to identify the other, morerelevant secretions that will be affected, and explain how they will affect subsequent fat and carb digestion.Textbut this questions is about digestion of carbohydrates and fats, not proteins.
CL: Digestion
1. In a Vertebrate digestive system, name the primary sites of mechanical digestion of carbohydrates, proteins and fats, respectively, and explain what structures or secretions are responsible for the mechanical digestion of each. A comparative table will be useful.
2. Imagine that while exploring the Siberian steppe you stumble upon an unfamiliar mammal species. You observe it eating and note that it is cropping a variety of low-growing grass species, which is the only vegetation visible in any direction. Answer the following questions about this animal:
Describe the type of molars and premolars you expect it to have and explain your answer.
Do you expect it to have a relatively short or a relatively long digestive tract? Explain your answer.
Describe any special anatomical adaptations you expect to find in its digestive tract.

3. Refer to the image to answer the following question:
Imagine that the chemoreceptors of your small intestine (that bind to lipids and amino acids) are damaged. Explain how and why subsequent digestion of fats and carbohydrates will be altered.