Homeostasis Flashcards

1
Q

Homeostasis

A

is any self-regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival. If homeostasis is successful, life continues; if it’s unsuccessful, it results in a disaster or death of the organism.

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2
Q

Homeostasis Example

A

Body temperature control in humans is one of the most familiar examples of homeostasis.

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3
Q

Respond to Stimuli

A

any event or situation that evokes a response

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4
Q

Respond to Stimuli Example

A

You are hungry so you eat some food. A rabbit gets scared so it runs away. You are cold so you put on a jacket.

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5
Q

positive feedback loop

A

Feedback loop that causes a system to change further in the same direction.

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6
Q

Negative Feedback Loop

A

A feedback loop in which a system responds to a change by returning to its original state, or by decreasing the rate at which the change is occurring.

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7
Q

sensor

A

An action or change in behavior that occurs as a result of a stimulus.

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8
Q

effector

A

any organ or cell that ultimately responds to the stimulus

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9
Q

In general, what is a stimulus and a response as it pertains to feedback loops?

A

When a stimulus, or change in the environment, is present, feedback loops respond to keep systems functioning near a set point, or ideal level.

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