Gastrointestinal System

    Gastrointestinal System
    What are the cells in the pancreas that secrete “pancreatic juice” called?
    Hepatocytes are in the liver; Peyer’s patches are lymphoid tissue in the gut wall; the islets produce insulin and glucagon.
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    Gastrointestinal System
    What is the pH of the duodenum?
    The duodenum is slightly alkaline.
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    Gastrointestinal System
    Which of the following is TRUE of bile?
    Bile emulsifies (rather than digests) fat. It is stored (but not synthesised) in the gall bladder.
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    Gastrointestinal System
    If blood glucose is high, what does the liver do about it?
    This process removes glucose from circulation. Choices B and C would increase blood glucose. Transamination is done to amino acids to produce different amino acids.
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    Gastrointestinal System
    What food is digested by lipase?
    Lipase digests lipids. Our dietary lipids are triglycerides.
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    Gastrointestinal System
    Where is the gastro-oesophageal sphincter?
    It is where the oesophagus enters the stomach. It prevents the stomach contents refluxing into the oesophagus.
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    Gastrointestinal System
    What are the products of carbohydrate digestion?
    Carbohydrates are digested into simple sugars known as monosaccharides (e.g. glucose, fructose, ribose).
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    Gastrointestinal System
    Which three sections do the small intestine consists of?
    Caecum is part of the LI; antrum is part of the stomach; rectum is the last part of the colon.
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    Gastrointestinal System
    Monosaccharides are the product of digestion of what substance?
    Carbohydrates are composed of many monosaccharide units.
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    Gastrointestinal System
    What is the function of gastrin?
    Gastrin is a hormone that stimulates the cells lining the stomach gastric pits to secrete.
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