Blood Glucose Homeostasis

What is the function of glucagon in the context of blood glucose regulation?

• Increasing blood glucose levels

• Promoting glucose uptake by cells

• Storing excess glucose as glycogen

• Inhibiting glucose production by the liver

Which organ is primarily responsible for detecting changes in blood glucose levels and releasing insulin and glucagon?

• Heart

• Liver

• Pancreas

• Kidneys

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What is the purpose of a negative feedback loop involving insulin and glucagon in blood glucose regulation?

• To keep blood glucose levels consistently high

• To keep blood glucose levels consistently low

• To maintain blood glucose levels within a narrow range

• To prevent the release of insulin and glucagon

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Which cells are most affected by the action of insulin in lowering blood glucose levels?

• Skin cells

• Liver and muscle cells

• Nerve cells

• Red blood cells

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What happens to blood glucose levels after consuming a meal rich in carbohydrates?

• They remain unchanged.

• They decrease significantly.

• They increase due to the absorption of glucose.

• They fluctuate randomly.

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What can happen if blood glucose concentration remains consistently too high?

• It has no effect on the body.

• It can damage tissues and organs.

• It helps improve overall health.

• It leads to a decrease in energy levels.

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Which hormone is responsible for increasing blood glucose levels during times of low blood sugar?

• Insulin

• Glucagon

• Cortisol

• Estrogen

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Diabetes is a condition where there is too much ____________ in the _____________.

• water, blood

• food, stomach

• sugar, blood

• fat, body

If you haven't eaten all day, what hormone is your pancreas most likely secreting?

• Insulin

• Hemoglobin

• Glucagon

• Betadine

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Homeostasis mechanisms...

• keep everything exactly the same.

• usually operate by positive feedback systems.

• act to keep the internal environmental conditions outside the normal range

• is the ability to maintain a relatively stable internal environment

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