Free Printable Homeostasis in Human

1.

Which of the following describes homeostasis?

a)

keeps variables exactly at the set point

b)

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

c)

acts to keep values outside of a desired range

d)

operates through positive feedback

2.

Negative feedback loops ...

a)

are one way an organism can maintain homeostasis.

b)

are rarely found in healthy individuals

c)

respond by making deviations from normal even larger

d)

cannot be counteracted with medicine

3.

Which correctly identifies all steps involved in negative feedback?

a)

initiation event, stimulus, positive feedback, response, effector, control center, receptor

b)

termination event, stimulus, reply, effector, control center, and receptor

c)

initiation event, response, stimulus, effector, command center

d)

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

4.

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

a)

Initiation event

b)

Response

c)

Receptor

d)

Effector

5.

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

a)

initiation event

b)

control center

c)

effector

d)

receptor

6.

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

a)

response

b)

effector

c)

control center

d)

stimulus

7.

Which part of the feedback loop is a body part that makes a change to bring the system back to homeostasis?

a)

Effector

b)

control center

c)

response

d)

receptor

8.

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

a)

effector

b)

response

c)

control center

d)

stimulus

9.

The body part that senses the change inside the organism ...

a)

receptor

b)

control center

c)

effector

d)

response

10.

Identify the initiation event.

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.

a)

temperature change is noticed

b)

person begins to sweat

c)

body temperature decreases

d)

person begins to exercise

11.

Identify the stimulus event.

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.

a)

body temperature increases

b)

person begins to sweat

c)

temperature change is noticed

d)

person begins to exercise

12.

Identify the stimulus that restores homeostasis.

Scenario: A person begins to exercise which causes their body temperature to increase. The temperature change is noticed (sensed) and the person begins to sweat and their body temperature decreases.

a)

temperature changes is noticed

b)

a person begins to exercise

c)

body temperature increases

d)

body temperature decreases

13.

Which part of the feedback loop and body is responsible for sensing the temperature change?

Scenario: A person begins to exercise which causes their body temperature to increase. The temperature change is noticed (sensed) and the person begins to sweat and their body temperature decreases.

a)

control center - sweat glands

b)

receptor - sweat

c)

control center - hypothalamus (part of the brain)

d)

receptor - brain and skin receptors

14.

Identify the response.

Scenario: A person begins to exercise which causes their body temperature to increase. The temperature change is noticed (sensed) and the person begins to sweat and their body temperature decreases.

a)

the person begins to sweat

b)

the person begins to exercise

c)

change in temperature

d)

body temperature increases

15.

Which of the following is an example of a response to an internal stimulus?

a)

you are tired

b)

you are hot

c)

you eat food

d)

you are scared

Homeostasis in Human

Total questions: 15

Worksheet time: 45mins

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