BIOLOGY (OER)
2nd Edition
ISBN: 2810023110482
Author: OpenStax
Publisher: MBS
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Chapter 34, Problem 36CTQ
A scientist is studying a model that has a mutation in the receptor for somatostatin that prevents hormone binding. How would this mutation affect the structure and function of the
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An anti-enzyme drug Gordox is extracted from the pancreas of
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Chapter 34 Solutions
BIOLOGY (OER)
Ch. 34 - Figure 34.11 Which of the following statements...Ch. 34 - Figure 34.12 Which of the following statements...Ch. 34 - Figure 34.19 Which of the following statements...Ch. 34 - Which of the following is a pseudo-ruminant? cow...Ch. 34 - Which of the following statements is untrue?...Ch. 34 - The acidic nature of chyme is neutralized by...Ch. 34 - The digestive juices from the liver are delivered...Ch. 34 - A scientist dissects a new species of animal. If...Ch. 34 - Which of the following statements is not true?...Ch. 34 - Which of the following is a water-soluble vitamin?...
Ch. 34 - What is the primary fuel for the body?...Ch. 34 - Excess glucose is stored as fat glucagon glycogen...Ch. 34 - Many distance runners “carb load” the day before a...Ch. 34 - Where does the majority of protein digestion take...Ch. 34 - Lipases are enzymes that breakdown disaccharides...Ch. 34 - Which of the following conditions is most likely...Ch. 34 - Which hormone controls the release of bile from...Ch. 34 - Which hormone stops acid secretion in the stomach?...Ch. 34 - In the famous conditioning experiment, Pavlov...Ch. 34 - How does the polygastric digestive system aid in...Ch. 34 - How do birds digest their food in the absence of...Ch. 34 - What is the role of the accessory organs in...Ch. 34 - Explain how the villi and microvilli aid in...Ch. 34 - Name two components of the digestive system that...Ch. 34 - What are essential nutrients?Ch. 34 - What is the role of minerals in maintaining good...Ch. 34 - Discuss why obesity is agrowing epidemic.Ch. 34 - There are several nations where mal nourishment is...Ch. 34 - Generally describe bow a piece of bread can power...Ch. 34 - In the 1990s fat-free foods became popular among...Ch. 34 - Explain why some dietary lipid is a necessary part...Ch. 34 - The gut microbiome (the bacterial colonies in the...Ch. 34 - Many mammals become ill if they drink milk as...Ch. 34 - Describe how hormones regulate digestionCh. 34 - Describe one or more scenarios where loss of...Ch. 34 - A scientist is studying a model that has a...
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- What is the function of each of the following substances?a. AMPKb. sterol carrier protein c. lipoprotein lipased. GLUT-4e. hormone-sensitive lipasearrow_forwardIt is noticed that when a strain of mice exercises, their blood glucose drops to very low levels. Which of the following can explain this situation? a) These mice do not make enough insulin b) these mice lack insulin receptors on their cells c)these mice lack glucagon d) these mice cannot synthesize glycogen from glucosearrow_forwardOne role of the pancreas is to help regulate blood glucose levels. Two types of cells in the pancreas, beta and alpha, serve as sensors to detect changes in blood glucose levels. High glucose levels cause beta cells to increase the amount of insulin given off by the pancreas. The insulin triggers body cells to take in glucose and the liver to store excess glucose as glycogen, decreasing the blood glucose level. On the other hand, low glucose blood levels trigger alpha cells to signal for glycogen to free up stored glucose from your liver, thus increasing the blood glucose level. (4 points) 1. What type of feedback mechanism is this, positive or negative? Explain your answer based on the description of the mechanism. Blood glucose levels change throughout the day. Explain what causes these changes and describe how these feedback cycles work together to maintain a dynamic homeostasis. III. Predict what will happen to this feedback mechanism and then to a person's body if the beta cells…arrow_forward
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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.arrow_forwardWhy are leptin injections less helpful for most overweight people than for mice with the obese gene?arrow_forwardIn some forms of diabetes, a mutation in the b subunit of the insulin receptor abolishes the enzymatic activity of that subunit. How does the mutation affect the cell’s response to insulin? Can additional insulin (e.g., from injections) overcome the defect?arrow_forward
- a) Explain in your own words what a feedback system is. Use the feedback loop of glucagon to support your explanation. (Don't forget to include the components of a feedback system!) b) What is a possible error that may occur in a feedback system? Explain your reasoning.arrow_forwardI am creating a medical scaffold made out of TPU to surgically implant around the pancreas for diabetic patients. The scaffold will have have capsules of islet beta cells which will diffuse into the pancreas to create a functional pancreas. I will use the Brunauer–Emmett–Teller (BET) technique to determine the specific surface area and porosity of the scaffold material. In the context of the TPU scaffold, the BET technique will provide crucial insights into its porosity and its potential to facilitate the infusion of beta cells into the pancreas. Can you explain the expected/ideal results from the BET test and how the test will help the design process of this medical scaffold.arrow_forwardWhile studying the salivation response in dogs, Russian physiologist Ivan Pavlov observed that dogs would not only salivate when they were fed but would actually start to salivate when they heard the footsteps of his lab assistant. Which of the following best describes this situation. This was a testing experiment because it happened in Pavlov's lab. This was a testing experiment because Pavlov's assistants were interacting with the dogs rather than passively observing them. This was an observational experiment because Pavlov was not testing a hypothesis when he observed this. This was not an experiment because Pavlov did not intend to make this observation. This was an observational experiment because Pavlov did not take any measurements.arrow_forward
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