Unit 4 AP Biology Cell ommunication

What is Negative Feedback?

• when a stimulus increases the response

• when a stimulus neutralizes the response

• When a stimulus decreases the response

• when a response is stabilized

• response limits the stimulus

Tags

NGSS.HS-LS1-3

what is positive feedback

• When the response is reduced

• when the response it increased

• When the stimulus is reduced

• when the stimulus is increased

• when the response increases the stimulus

Tags

NGSS.HS-LS1-3

WHAT kind of feedback is represented in the graph

• Positive feedback

• Negative feedback

Which is an example of positive feedback?

• when your body shivers due to your body being too cold.

• when your body sweats because you are too hot.

• When a dog runs to a ball and is told "Good Job"

• When you tell someone or thing "No"

Tags

NGSS.HS-LS1-3

How does the body heat itself

• Shivering and Sweating

• Sweating and dilating blood to the surface of your skin

• Shivering

• Sweating

Tags

NGSS.HS-LS1-3

How does the body cool itself?

• Shaking

• Shivering

• Sweating and shivering

• sweating and dilating blood to the skins surface

Tags

NGSS.HS-LS1-3

Explain how negative feedback helps to maintain homeostasis.

• brings it back to normal

• loops act to oppose the stimulus, or cue, that triggers them.

• body temperature

• reduces stimulus

Tags

NGSS.HS-LS1-3

Explain how positive feedback affects homeostasis.

• extreme conditions arises

• moves a system further away from the target of equilibrium.

• unbalances the system

• moves closer to the system

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NGSS.HS-LS1-3

Describe the ways that cells can communicate with one another.

• binding

• signals

• transduction pathways

• chemical signals

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NGSS.HS-LS2-3

how do cells communicate with one another over short

• the release of chemical messengers (ligands that can diffuse through the space between the cells).

• paracrine signaling

• the release of endorphine

• release of ligands that bind to the receptor and transduce a response.