Blood Glucose and Homeostasis Flashcards
What is Diabetes?
Where people have trouble regulating their blood glucose. There are two types 1 diabetes, and type 2 diabetes.
What is type 1 diabetes?
People with type 1 diabetes cannot produce insulin, therefore, they must receive frequent insulin injections.
What is type 2 diabetes?
People with type 2 diabetes can produce insulin, but their cells don’t use it as well as they should.
Create a table to compare the two methods by which homeostasis is maintained.
Answer in booklet.
What is the role of insulin in the body?
Insulin is a hormone secreted from the pancreas. It stimulates glycogen formation from glucose. All helps to regulate glucose levels.
How does insulin do it’s job?
- Insulin enters bloodstream from pancreas.
- Glucose enter bloodstream from digestive system and liver.
- Insulin leaves bloodstream and binds to cell
- In response to insulin, cell takes up glucose, which is used as a fuel.
- Healthy balance of glucose and inculin circulate in bloodstream.
Explain the multiple ways that insulin
modifies glucose levels?
Glucagon and insulin have antagonistic effects, with glucagon promoting
glucose production and release into the bloodstream, and insulin promoting the transport of glucose into cells
from the bloodstream and inhibiting glucose production.
What is the role of glucogon in maintaining blood glucose levels?
Glucagonis a hormone produced by the pancreas that raises blood glucose levels by stimulating the breakdown
of glycogen into glucose, stimulating glucose production from amino acids and fatty acids, and stimulating the
release of glucose from the liver.
What is meant by the antagonistic effect of insulin and glucagon?
They counterpart eachother, with glucagon promoting glucose productino and release into the bloodstream, and insulin promotin the transport of glucose into cells from the bloodstream and inhibiting glucose production.
Create your own diagram to explain how insulin and glucogon act to moderate blood sugar levels.
Answer in booklet
Explain how glucogon and insulin are not considered an “all-or-nothing” response.
It isn’t an all or nothing response because the pancreas always produces these substances to try and regulate the substances.
How many individual have diabetes?
2.4 million people in canada alone have diabetes. Which is 6.8% of the population.
What is an islet cell?
The specific cell that produces insulin the the pancreas.
What are the two major ways that signals are sent throughout the body.
Through nerves and throughhout the body in the circulatory system.
Through nerves. Explain:
Signals are sent as nerve impulses that travel through neurons. These impulses are sent to other neurons, or specific target cells at a specific location of the body.
