Feedback Homeostasis

If the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up. This is an example of what type of feedback?

• Positive Feedback Response

• Negative Feedback Loop

Tags

NGSS.HS-LS1-3

What type of feedback loop is shown?

• negative

• neutral 

• positive

Tags

NGSS.HS-LS1-3

When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed. This is an example of what type of feedback?

• Positive Feedback Response

• Negative Feedback Loop

Tags

NGSS.HS-LS1-3

Things in the human body that need to stay the same

• Glucose

• Temperature

• Blood Pressure

• All of the above

Tags

NGSS.HS-LS1-3

The group of organisms that use the process of homeostasis includes

• mammals, only

• animals, only

• plants and animals

• all living things

Tags

NGSS.HS-LS1-3

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.HS-LS1-3

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

• Pancreas releases insulin into blood

• Pancreas releases glucagon into blood

Tags

NGSS.HS-LS1-3

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

• Pancreas releases insulin into blood

• Pancreas releases glucagon into blood

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