Feedback Mechanisms

Feedback loops and Homeostasis

Open Ended

Compare and contrast negative and positive feedback loops.

Multiple Choice

What type of feedback loop is represented here?

• Positive

• Negative

Multiple Choice

What type of feedback loop is represented here.

• positive

• negative

Multiple Choice

What type of feedback loop is represented here?

• Positive

• Negative

Multiple Choice

What type of feedback loop is represented here?

• Positive

• Negative

Multiple Choice

What type of feedback loop is this?

• Positive

• Negative

Multiple Choice

What type of feedback loop is this?

• Positive

• Negative

Multiple Select

Check all the statements representing negative feedback loops

• regulatory

• return body to set point

• accelerates action

• leads to disease

Open Ended

After completing the lesson, write a your own definition of negative and positive feedback loops. Give an example of each type of feedback.

Multiple Choice

A feedback loop best fits which characteristic of life?

• Cells

• Organization

• Homeostasis

• Adaptation

Multiple Choice

The "effect" of a given stimulus is the...

• response
• stimulus
• cause
• result

Multiple Choice

The "cause" for something to happen is the

• response
• effect
• stimulus
• homeostasis

Multiple Choice

Humans have ___ for body temperature, blood glucose concentrations, electrolyte concentrations, pH levels, tendon tension and variables.

• positive feedback mechanisms
• set points
• a wide internal range
• no regulation

Multiple Choice

Failure to maintain homeostasis could result in:

• lack of internal balance
• eventual death
• difficulty carrying on metabolism 
• all three

Multiple Choice

In this body temperature feedback loop, predict what would happen if cooling mechanisms were NOT activated?

• The body would not warm up.

• The body would not cool down.

• Your body would get colder and colder.

• Your body would release lots of heat.

Poll

Identify your level of comfort with understanding feedback loops and the human body.

• Awesome. I really understand feedback loops.

• Medium. I'm getting there. I need to ask questions and study.

• Poor. I need help with this. I need to study and ask questions. I may need to schedule a time for extra help with Polemeni