Ch 5: Homeostatic control of blood glucose levels
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Questions and Answers

What is the main purpose of homeostasis in living organisms?

  • Regulating pH balance
  • Promoting external changes
  • Maintaining stability of internal conditions (correct)
  • Increasing blood glucose levels

    • Which hormone helps lower blood glucose levels by converting glucose to glycogen?

  • Adrenaline
  • Insulin (correct)
  • Glucagon
  • Estrogen

    • What is the role of glucagon in blood glucose regulation?

  • Lowering blood glucose levels
  • Converting glycogen to glucose (correct)
  • Producing more insulin
  • Storing glucose as glycogen

    • What is the stored form of glucose in the liver and muscles?

    <p>Glycogen</p> Signup and view all the answers

    In what organ is insulin produced?

    <p>Pancreas</p> Signup and view all the answers

    What happens to blood glucose levels after a meal?

    <p>Increase</p> Signup and view all the answers

    Which hormone raises blood glucose levels by converting stored glycogen to glucose?

    <p>Glucagon</p> Signup and view all the answers

    What is the role of insulin in blood glucose regulation?

    <p>Promotes the conversion of glucose to glycogen for storage</p> Signup and view all the answers

    What happens when blood glucose levels decrease?

    <p>The pancreas secretes glucagon to increase blood glucose levels</p> Signup and view all the answers

    How does glucagon affect blood glucose levels?

    <p>Promotes the conversion of stored glycogen to glucose</p> Signup and view all the answers

    What are common symptoms of diabetes mellitus?

    <p>Increased thirst and frequent urination</p> Signup and view all the answers

    What characterizes Type 1 Diabetes?

    <p>Requires lifelong insulin injections and dietary management</p> Signup and view all the answers

    What is the main focus of treatment for Type 2 Diabetes?

    <p>Lifestyle modifications including diet, exercise, and medication</p> Signup and view all the answers

    How does insulin resistance affect blood glucose levels?

    <p>Results in ineffective glucose uptake by cells, raising blood glucose levels</p> Signup and view all the answers

    What is the function of glycogen in the body?

    <p>Provides immediate energy in the form of glucose storage</p> Signup and view all the answers

    What term refers to the process by which living organisms maintain stable internal conditions?

    <p>Homeostasis</p> Signup and view all the answers

    Which hormone helps raise blood glucose levels by converting stored glycogen to glucose?

    <p>Glucagon</p> Signup and view all the answers

    What is the main function of glucagon in blood glucose regulation?

    <p>Raise blood glucose levels</p> Signup and view all the answers

    Which of the following hormones is responsible for lowering blood glucose levels?

    <p>Insulin</p> Signup and view all the answers

    What is the stored form of glucose in the liver and muscles called?

    <p>Glycogen</p> Signup and view all the answers

    How do negative feedback mechanisms contribute to homeostasis?

    <p>By detecting and counteracting deviations</p> Signup and view all the answers

    Why is it crucial for blood glucose levels to be carefully regulated?

    <p>To ensure adequate energy supply</p> Signup and view all the answers

    In diabetes mellitus, which of the following symptoms is commonly associated with high blood glucose levels?

    <p>Excessive thirst</p> Signup and view all the answers

    Which type of diabetes is typically managed with insulin injections and dietary adjustments?

    <p>Type 1 Diabetes</p> Signup and view all the answers

    Insulin resistance, a common feature of Type 2 Diabetes, is primarily caused by:

    <p>Poor response to insulin</p> Signup and view all the answers

    Which hormone plays a key role in converting stored glycogen into glucose to raise blood glucose levels?

    <p>Glucagon</p> Signup and view all the answers

    What is the main metabolic difference between Type 1 and Type 2 Diabetes?

    <p>Insulin production</p> Signup and view all the answers

    What is the primary outcome of cells taking up glucose when stimulated by insulin?

    <p>Conversion to glycogen</p> Signup and view all the answers

    Which of the following lifestyle factors is most likely to contribute to the development of Type 2 Diabetes?

    <p>Sedentary behavior</p> Signup and view all the answers

    What is the function of glucagon in blood glucose regulation when compared to insulin?

    <p>Converts glycogen to glucose</p> Signup and view all the answers

    Which hormone is responsible for converting stored glycogen to glucose to raise blood glucose levels?

    <p>Insulin</p> Signup and view all the answers

    What is the primary mechanism by which negative feedback mechanisms contribute to homeostasis?

    <p>Detecting and counteracting deviations from optimal conditions</p> Signup and view all the answers

    Which hormone plays a key role in converting glucose to glycogen, thus lowering blood glucose levels?

    <p>Insulin</p> Signup and view all the answers

    What is the primary function of glucagon in blood glucose regulation?

    <p>Raising blood glucose levels</p> Signup and view all the answers

    Which hormone is critical in converting stored glycogen into glucose to raise blood glucose levels?

    <p>Glucagon</p> Signup and view all the answers

    What is the stored form of glucose in the liver and muscles?

    <p>Glycogen</p> Signup and view all the answers

    What hormone is produced by the pancreas to lower blood glucose levels by converting glucose to glycogen?

    <p>Insulin</p> Signup and view all the answers

    What is the key metabolic difference between Type 1 and Type 2 Diabetes?

    <p>Type 1 Diabetes involves loss of insulin-producing cells, while Type 2 Diabetes involves ineffective insulin response due to poor lifestyle choices.</p> Signup and view all the answers

    What role does glucagon play in blood glucose regulation compared to insulin?

    <p>Glucagon lowers blood glucose levels by converting glycogen into glucose, while insulin raises blood glucose levels by promoting glucose storage.</p> Signup and view all the answers

    How do insulin resistance and poor lifestyle choices contribute to the development of Type 2 Diabetes?

    <p>Insulin resistance hinders glucose uptake by cells, while poor lifestyle choices impair insulin production.</p> Signup and view all the answers

    Which hormone raises blood glucose levels by converting stored glycogen to glucose?

    <p>Glucagon</p> Signup and view all the answers

    What is the primary outcome of cells taking up glucose when stimulated by insulin?

    <p>Lowered blood glucose levels</p> Signup and view all the answers

    How does glucagon affect blood glucose levels?

    <p>By converting glycogen into glucose</p> Signup and view all the answers

    Which lifestyle factor is most likely to contribute to the development of Type 2 Diabetes?

    <p>Sedentary behavior</p> Signup and view all the answers

    Why is maintaining stable blood glucose levels crucial?

    <p>To provide energy for cellular functions</p> Signup and view all the answers

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