Homeostasis

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

• compensating

• homeostasis

• balancing

• routine

According to the model, what is a normal blood glucose (sugar) level?

• 270 mg/100mL

• 180 mg/100 mL

• 45 mg/100 mL

• 90 mg/100 mL

Tags

NGSS.MS-LS1-2

According to the model, what is the response to HIGH blood glucose (sugar)?

• Pancreas releases insulin into blood

• Pancreas releases glucagon into blood

According to the model, what is the response to LOW blood glucose (sugar)?

• Pancreas releases insulin into blood

• Pancreas releases glucagon into blood

Homeostasis

• allows for a wildly fluctuating internal environment

• is impossible in vertebrates

• is the maintenance of a relatively stable internal environment

• is the maintenance of a relatively stable external environment

Tags

NGSS.HS-LS1-3

Positive Feedback loop

• decreases the stimulus

• increases the stimulus

Negative feedback returns BACK to the set point

• False

• True

Tags

NGSS.HS-LS1-3

If the environment gets cold, we will often shiver in order to:

• keep body temperature the same as the external temperature

• decrease body temperature

• increase body temperature

• regulate blood pressure

Negative Feedback loop

• decreases the stimulus

• increases the stimulus

Tags

NGSS.HS-LS1-3

This graph shows an example of...

• Blood sugar regulation

• Homeostasis

• Negative feedback

• Positive feedback

Tags

NGSS.HS-LS1-3