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 (A)</p> Signup and view all the answers

In what organ is insulin produced?

<p>Pancreas (A)</p> Signup and view all the answers

What happens to blood glucose levels after a meal?

<p>Increase (D)</p> Signup and view all the answers

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

<p>Glucagon (A)</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 (B)</p> Signup and view all the answers

What happens when blood glucose levels decrease?

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

How does glucagon affect blood glucose levels?

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

What are common symptoms of diabetes mellitus?

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

What characterizes Type 1 Diabetes?

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

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

<p>Homeostasis (C)</p> Signup and view all the answers

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

<p>Glucagon (C)</p> Signup and view all the answers

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

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

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

<p>Insulin (A)</p> Signup and view all the answers

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

<p>Glycogen (A)</p> Signup and view all the answers

How do negative feedback mechanisms contribute to homeostasis?

<p>By detecting and counteracting deviations (C)</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 (D)</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 (A)</p> Signup and view all the answers

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

<p>Type 1 Diabetes (A)</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 (D)</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 (B)</p> Signup and view all the answers

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

<p>Insulin production (B)</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 (B)</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 (C)</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 (A)</p> Signup and view all the answers

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

<p>Insulin (B)</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 (A)</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 (D)</p> Signup and view all the answers

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

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

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

<p>Glucagon (D)</p> Signup and view all the answers

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

<p>Glycogen (B)</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 (A)</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. (B)</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. (C)</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. (A)</p> Signup and view all the answers

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

<p>Glucagon (C)</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 (D)</p> Signup and view all the answers

How does glucagon affect blood glucose levels?

<p>By converting glycogen into glucose (C)</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 (A)</p> Signup and view all the answers

Why is maintaining stable blood glucose levels crucial?

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

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