7.1.2 Blood Glucose Regulation

• Insulin lowers blood glucose levels by promoting glucose uptake into cells.


  True
• What are the main actions of insulin?

  Promotes glucose uptake, converts glucose to glycogen
• Where is excess glucose stored after being converted into glycogen?

  Liver
• What are the main actions of insulin?

  Promotes glucose uptake, converts glucose to glycogen
• What is the effect of glycogenolysis on blood glucose levels?

  Raises blood glucose
• What is glycogenolysis stimulated by?

  Glucagon
• What hormone raises blood glucose levels when they are too low?

  Glucagon
• What is the primary regulator of blood glucose levels?

  Negative feedback
• Steps in negative feedback regulation of blood glucose levels

  1️⃣ Blood glucose rises

  2️⃣ Insulin secretion increases

  3️⃣ Glucose levels decrease

  4️⃣ Blood glucose falls

  5️⃣ Glucagon secretion increases
• What organ releases insulin and glucagon?

  Pancreas
• Glucagon stimulates the breakdown of glycogen in the liver through a process called glycogenolysis.
• Low blood glucose levels can cause symptoms like fatigue, confusion, and even coma.
• What is blood glucose regulation?

  Maintaining stable glucose levels
• What is the effect of glucagon on blood glucose levels?

  Raises blood glucose
• Insulin promotes the conversion of excess glucose into glycogen
• The pancreas releases two hormones: insulin and glucagon
• Insulin stimulates the uptake of glucose from the blood into cells
• Gluconeogenesis promotes the synthesis of glucose from non-carbohydrate sources like amino acids and glycerol
• Gluconeogenesis involves the synthesis of glucose from non-carbohydrate sources.
• Glucagon stimulates the breakdown of glycogen into glucose.
• When blood glucose rises, insulin secretion increases.
• What two hormones are involved in blood glucose regulation?

  Insulin and glucagon
• Insulin promotes the conversion of excess glucose into glycogen.


  True
• Negative feedback is the primary mechanism for blood glucose regulation.

  True
• The pancreas releases two hormones called insulin and glucagon
• Match the hormone with its effect on blood glucose:

  Insulin ↔️ Lowers blood glucose

  Glucagon ↔️ Raises blood glucose
• Insulin stimulates the uptake of glucose into muscle and fat cells.

  True
• Match the hormone with its effect on blood glucose and action:

  Insulin ↔️ Lowers blood glucose, converts glucose to glycogen

  Glucagon ↔️ Raises blood glucose, converts glycogen to glucose
• Glucagon is released when blood glucose levels are too high.

  False
• Match the action of glucagon with its effect:

  Glycogenolysis ↔️ Raises blood glucose by breaking down glycogen

  Gluconeogenesis ↔️ Raises blood glucose by synthesizing glucose
• Glycogenolysis increases blood glucose levels.


  True
• Gluconeogenesis occurs in the liver.


  True
• When blood glucose falls, glucagon secretion increases.


  True
• Insulin lowers blood glucose by promoting glucose uptake into cells.
• What type of cells does insulin primarily act on to promote glucose uptake?

  Muscle and fat cells
• What can consistently high blood glucose levels lead to?

  Diabetes