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Insulin and Glucagon Functions

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Questions and Answers

What is the primary function of insulin in the body?

To break down glycogen into glucose

To release glucose into the bloodstream

To raise blood glucose levels

To force liver and muscles to take up glucose from the bloodstream (correct)

Under what condition is insulin released into the bloodstream?

When glucagon levels are high

When blood glucose levels rise above 110 mg/dl (correct)

When liver glycogen levels are low

When blood glucose levels fall below 70 mg/dl

What is the primary function of glucagon in the body?

To convert glycogen into glucose

To raise blood glucose levels (correct)

To lower blood glucose levels

To store glucose as glycogen

What happens to liver glycogen when glucagon is released?

It is converted into glucose and released into the bloodstream Signup and view all the answers

What is the blood glucose threshold below which glucagon is released?

Below 70 mg/dl Signup and view all the answers

What happens to glucose in the bloodstream when insulin is released?

It is taken up by the liver and muscles Signup and view all the answers

What is the consequence of increased glucose levels in the bloodstream on insulin release?

Insulin is released into the bloodstream Signup and view all the answers

What is the primary outcome of insulin's action on the liver?

Glycogen is synthesized from glucose Signup and view all the answers

What is the opposite effect of glucagon on blood glucose levels compared to insulin?

Glucagon increases blood glucose levels, while insulin decreases them Signup and view all the answers

What is the trigger for the release of glucagon into the bloodstream?

Blood glucose levels falling below 70 mg/dl Signup and view all the answers

Study Notes

Insulin

Lowers blood glucose levels
Released when blood glucose rises above 110 mg/dl
Forces liver and muscles to take up glucose from bloodstream
Forces liver to make glycogen by linking glucose molecules together

Glucagon

Raises blood glucose
Released when blood glucose falls below 70 mg/dl
Forces liver to break down glycogen into glucose and release it into the bloodstream

Insulin

Lowers blood glucose levels
Released when blood glucose rises above 110 mg/dl
Forces liver and muscles to take up glucose from bloodstream
Forces liver to make glycogen by linking glucose molecules together

Glucagon

Raises blood glucose
Released when blood glucose falls below 70 mg/dl
Forces liver to break down glycogen into glucose and release it into the bloodstream

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Description

This quiz covers the functions of insulin and glucagon in regulating blood glucose levels. Learn how insulin lowers blood glucose and glucagon raises it.