Homeostasis

• What does the term "homeostasis" mean?

  Keeping internal conditions stable
• How does the analogy of Goldilocks relate to homeostasis?

  It illustrates the need for balance
• What is the role of negative feedback in homeostasis?

  To return variables to normal levels
• What happens to body temperature during extreme heat?

  It remains at 37° C
• What is the function of a thermostat in the homeostasis analogy?

  It measures and regulates temperature
• How does the thermostat analogy apply to the human body?

  It regulates internal variables like glucose
• What happens when blood glucose levels are too high?

  The pancreas releases insulin
• What are the two key organs involved in glucose regulation?

  Liver and pancreas
• What is the role of glucose in the body?

  It provides energy for cell respiration
• How does eating food affect blood glucose levels?

  It increases blood glucose levels
• What can influence blood glucose levels?

  Type of food, timing, and hormones
• What happens to blood glucose levels during fasting?

  They decrease
• What is the function of insulin?

  To lower blood glucose levels
• What is the role of the pancreas in glucose regulation?

  It detects and responds to glucose levels
• What are the two types of cells in the pancreas related to glucose regulation?

  Beta cells and alpha cells
• What is the consequence of not regulating blood glucose levels?

  It can lead to diseases like diabetes
• How does the body respond when blood glucose is too low?

  It releases glucagon to raise levels
• Why is it important to maintain homeostasis?

  To ensure proper functioning of the body
• Where is the pancreas located in the body?

  In the abdomen, close to the liver
• What do the cells of the pancreas detect?

  Blood glucose levels
• What happens to blood glucose levels after eating a large cake?

  They increase significantly
• What is the role of beta cells in the pancreas?

  They respond to high blood glucose
• What hormone do beta cells release when blood glucose is high?

  Insulin
• How does insulin travel in the body?

  Through the bloodstream
• What is the primary function of insulin?

  To lower blood glucose levels
• What do body cells do in response to insulin?

  Take in glucose for cell respiration
• What is glycogenesis?

  The synthesis of glycogen from glucose
• What is glycogen?

  The storage form of glucose
• What happens to blood glucose levels when insulin is released?

  They decrease towards normal levels
• What do alpha cells in the pancreas do?

  They respond to low blood glucose
• What hormone do alpha cells release when blood glucose is low?

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

  It raises blood glucose levels
• What process does glucagon trigger in the liver?

  Gluconeogenesis
• What is gluconeogenesis?

  The synthesis of glucose from non-carbohydrates
• How does glucagon affect glucose uptake in cells?

  It prevents glucose uptake
• How do insulin and glucagon work together?

  They regulate blood glucose levels oppositely
• What is the role of the liver in glucose regulation?

  It stores and releases glucose as needed
• What is the GLUT4 transporter?

  A glucose transporter in cells
• What happens when insulin binds to its receptor?

  A cascade of reactions occurs
• What is the consequence of high blood glucose levels?

  It can lead to serious health issues