Blood Glucose Homeostasis

When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. 

• Positive Feedback Response

• Negative Feedback Loop 

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According to the feedback loop, what does high blood sugar promote?

• Insulin Release

• Glucagon Release

• Insulin Uptake

• Glycogen Uptake

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Homeostasis

• allows for a wildly fluctuating internal environment

• is impossible in vertebrates

• is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation

• is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation

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The maintenance of an organism’s internal environment is called:

• compensating

• homeostasis

• balancing

• routine

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What is the primary function of glucagon in blood sugar regulation?

• To increase blood sugar levels

• To decrease blood sugar levels

• To store glucose as glycogen

• To break down proteins

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How does the body respond to high blood sugar levels?

• By releasing glucagon

• By releasing insulin

• By increasing heart rate

• By decreasing body temperature

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Which hormone is primarily responsible for lowering blood glucose levels?

• Glucagon

• Insulin

• Adrenaline

• Cortisol

Answer explanation

Insulin is the hormone primarily responsible for lowering blood glucose levels by facilitating the uptake of glucose into cells, thus reducing blood sugar levels. Glucagon, adrenaline, and cortisol have the opposite effect.

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Which of the following is a result of negative feedback in blood sugar regulation?

• Increased blood sugar levels after eating

• Decreased blood sugar levels after insulin release

• Increased heart rate during exercise

• Increased body temperature during fever

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What is the primary function of insulin in the body?

• To increase blood sugar levels

• To decrease blood sugar levels

• To regulate body temperature

• To balance pH levels

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When your blood sugar is too high, what hormone is released?

• glucagon

• insulin

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