Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Question
Chapter 41.5, Problem 3CC
Summary Introduction
To explain: The effect of insulinomas on blood glucose levels and liver functions.
Introduction:
Insulinomas are cancerous insulin-producing beta cells of pancreatic islets of Langerhans. These tumors lack response to feedback mechanisms and secret insulin even when there is a low blood glucose level in the body.
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Match the molecule involved in insulin signaling with what it does
insulin receptor
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physically brings glucose into the cell
binds to insulin and sends signal to cell
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a carbohydrate taken into cells as an energy source
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The image below shows how the human body and the endocrine system controls the level of blood sugar.
b)
Using the diagram above, describe the differences between positive and negative feedback.
Chapter 41 Solutions
Campbell Biology (10th Edition)
Ch. 41.1 - An animal requires 20 amino acids to make...Ch. 41.1 - Prob. 2CCCh. 41.1 - WHAT IF? If a zoo animal eating ample food shows...Ch. 41.2 - Prob. 1CCCh. 41.2 - In what sense are nutrients from a recently...Ch. 41.2 - Prob. 3CCCh. 41.3 - Explain why a proton pump inhibitor, such as the...Ch. 41.3 - Thinking about our nutritional needs and feeding...Ch. 41.3 - Prob. 3CCCh. 41.4 - Prob. 1CC
Ch. 41.4 - What features of a mammal's digestive system make...Ch. 41.4 - WHAT IF? "Lactose-intolerant" people have a...Ch. 41.5 - Explain how people can become obese even if their...Ch. 41.5 - WHAT IF? Suppose you were studying two groups of...Ch. 41.5 - Prob. 3CCCh. 41 - Prob. 41.1CRCh. 41 - Propose an artificial diet that would eliminate...Ch. 41 - Prob. 41.3CRCh. 41 - How does human anatomy indicate that our primate...Ch. 41 - Prob. 41.5CRCh. 41 - Fat digestion yields fatty acids and glycerol....Ch. 41 - The mammalian trachea and esophagus both connect...Ch. 41 - Which of the following organs is incorrectly...Ch. 41 - Prob. 4TYUCh. 41 - After surgical removal of the gallbladder, a...Ch. 41 - If you were to jog 1 km a few hours after lunch,...Ch. 41 - DRAW IT Create a flowchart to summarize the events...Ch. 41 - Prob. 8TYUCh. 41 - SCIENTIFIC INQUIRY In human populations of...Ch. 41 - WRITE ABOUT A THEME: ORGANIZATION Hair is largely...Ch. 41 - SYNTHESIZE YOUR KNOWLEDGE Hummingbirds are well...
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- Regulation in biological systems depends on feedback .which is an exmple of in formation flow. when diabbetes destroy insulin-producing cells, what infortamtion flow in disrupted? The body is unable to send signals that indicate the amount of sugar in the blood. Cells in the bladder are no longer able to send signals when the blodder fills. Appetite signals no longer regulate feeding . The pancres is unable to produce enzymes to break down protein.arrow_forwardThe image below shows how the human body and the endocrine system controls the level of blood sugar. a) Explain how the cells communicate with one another.arrow_forwardDiabetes often results in the production of reduced levels of insulin. Researchers claim that a drug that binds to and blocks the active site of GSK3 might mimic the role of insulin in the pathway shown in Figure 2. Provide reasoning to justify the researchers' claim.arrow_forward
- Biology B Tutorial Seven- Nervous and Endocrine System Compare this summary to the tables provided in the lecture. Which format works better for your revision and understanding? During your own revision, expand on your preferred format to include all the endocrine organs and their hormones. 5. Hormonal secretions by the endocrine system occur due to detection of a stimulus which signals a deviation from homeostasis. As an example of a humoral stimulus, outline blood glucose regulation. You can use a figure or describe the stimulus, sensor, effector and response.arrow_forwardWhich of the following statements about glucose regulation is FALSE? *Glucagon is released by the alpha cells when blood glucose levels are low.Insulin is released by the beta cells when blood glucose levels are high.Glucagon stimulates the formation of glycogen in the liver.Individuals with Type II diabetes produce insulin, but the insulin receptors don’t work.Insulin makes body cells more permeable to glucose.arrow_forwardWhat technology does insulin pump and diabetes represent? And What is its main purpose?arrow_forward
- Give typed full explanation Why are glycogen levels regulated differently in the muscle and in the liver?arrow_forwardWhich of the following correctly orders the steps of insulin secretion from the pancreas: Increased glucose passes into beta cells > Depolarziation opens calcium channels > ATP Levels increase > Potassium channels close due to ATP > insulin secretion ATP levels increase > Potassium channels close due to ATP > Increased glucose passes into beta cells > Depolarization opens calcium channels > insulin secretion Depolarization opens calcium channels > Increased glucose passes into beta cells > ATP levels increase > Potassium channels close due to ATP > insulin secretion Increased glucose passes into beta cells > ATP levels increase > Potassium channels close due to increased ATP > Depolarization opens calcium channels > insulin secretionarrow_forwardConsidering the endocrine function of adipose tissue, why is it so hard for people to maintain weight loss? I was thinking from the adipose tissue there is: adiponectin → hormone synthesized by adipose cells → reduce cellular insulin resistance + protects blood vessels from inflammation + atherosclerosis. However, the levels of the hormone are lower in people who are obese. But I'm not sure if that is correct or not.arrow_forward
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