Key Players
What hormone is released by the pancreas when blood sugar is high?
Insulin
What happens to blood sugar levels after a meal?
They rise
What happens to excess glucose in the body?
It is converted into glycogen in the liver
You’ve just eaten a meal high in carbohydrates. Describe what happens in your body in terms of insulin and glucose.
When your body causes you to shiver, it is trying to keep you warm because temperature dropped. Since this discourages or reverses the original change this is...
Negative feedback
What is the name of the hormone that raises blood sugar levels?
Glucagon
Where is extra glucose stored as glycogen?
The liver
When blood sugar levels drop, which organ releases glucose back into the blood?
The liver
You skipped breakfast and it's nearly lunchtime. How is your body keeping blood sugar stable?
Pancreas releases glucagon to signal the liver to release glucose.
Once labor begins in childbirth, contractions increase intensity and frequency until delivery. The increasing labor contractions of childbirth is...
An example of positive feedback
What is stored in the liver that acts as back up energy?
Glycogen
When blood sugar levels drop, which hormone is released by the pancreas?
Glucagon
True or False: Glucagon is released when blood sugar levels are high.
False
After a sugary snack, you feel jittery. What is happening to your blood sugar and insulin?
Blood sugar spikes quickly, causing high insulin release to bring it down
Blood sugar regulation is an example of...
Negative feedback
Where is insulin produced and released?
After an intense workout, your muscles need more energy. Which hormone helps ensure that glucose is available for your cells, and how does it work?
Glucagon is released by the pancreas to signal the liver to convert glycogen into glucose, increasing blood sugar levels for energy
Which hormone helps lower blood sugar levels by allowing cells to take in glucose?
Insulin
Jamie hasn’t eaten all morning and starts feeling shaky and weak before lunch. What hormone is likely being released to help raise Jamie’s blood sugar?
Glucagon is being released
How does negative feedback differ from positive feedback?
Negative feedback is when your body is trying to go back to homeostasis while positive feedback amplifies the change
What is your blood glucose level?
How much sugar is in your blood
A person with diabetes forgets to take their insulin after eating a high sugar meal. What might happen to their blood sugar levels, and why is this dangerous?
Blood sugar levels would stay high because insulin is needed to help cells absorb glucose. Prolonged high blood sugar can lead to hyperglycemia, which can cause serious health issues.
How is type 1 diabetes different than type 2?
In type 1, the body is not able to produce insulin at all. In type 2, the body is not able to produce ENOUGH insulin
After eating a big pasta meal, Sam feels very sleepy. What is happening in his body in terms of blood sugar regulation that might explain this feeling?
His blood sugar levels spiked, causing the pancreas to release insulin. Insulin helps cells absorb glucose, which can lead to a drop in blood sugar afterward, making him feel sleepy
Provide one example of positive AND negative feedback
Negative- shivering, sweating, blood sugar, blood pressure, etc.
Positive- childbirth, blood clotting, etc.