Homeostasis

Front

Which of the following describes homeostasis?

• keeps variables exactly at the set point
• organism's ability to maintain steady(stable) internal conditions
• acts to keep values outside of a desired range
• operates through positive feedback

Back

organism's ability to maintain steady(stable) internal conditions

Front

What is a function of negative feedback loops?

Back

are one way an organism can maintain homeostasis.

Front

Which correctly identifies all steps involved in negative feedback?
Options:
initiation event, stimulus, positive feedback, response, effector, control center, receptor
termination event, stimulus, reply, effector, control center, and receptor
initiation event, response, stimulus, effector, command center
initiation event, stimulus, receptor, control center, effector and response

Back

initiation event, stimulus, receptor, control center, effector and response

Front

What part of the negative feedback loop is what happens inside of the organism, as the result of the effector?

Back

Response

Front

This part of the negative feedback loop causes a change in the environment, a disruption to homeostasis.

Back

initiation event

Front

A change inside of the organism caused by the initiation event is the ...

Back

stimulus

Front

Which part of the feedback loop is a body part that makes a change to bring the system back to homeostasis? Options: Effector, control center, response, receptor

Back

Effector

Front

What detects that the system is outside of homeostasis and adjustments need to be made?

Back

control center

Front

The body part that senses the change inside the organism.

Back

receptor

Front

Identify the initiation event in the scenario: A person begins to exercise which causes their body temperature to increase. The temperature change is noticed and the person begins to sweat and their body temperature decreases.

Back

person begins to exercise