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Homeostasis

Total questions: 20

Worksheet time: 53mins

Name
Class
Date
1.
If the environment gets cold, we will often shiver in order to:
a)
keep body temperature the same as the external temperature
b)
decrease body temperature
c)
increase body temperature
d)
regulate blood pressure
2.
The "cause" for something to happen is the
a)
response
b)
effect
c)
stimulus
d)
homeostasis
3.
What type of feedback loop is shown?
a)
negative
b)
neutral 
c)
positive
4.
Failure to maintain homeostasis could result in:
a)
lack of internal balance
b)
eventual death
c)
difficulty carrying on metabolism 
d)
all three
5.
The two types of feedback systems that help organisms maintain homeostasis are:
a)
positive and negative 
b)
receptor and effector
c)
static and dynamic
d)
minor and major
6.
Maintaining body temperature is an example of a:
a)
negative feedback loop
b)
positive feedback loop
7.

What is the point of a feedback loop?

a)

To provide the body with more energy

b)

To provide the body with more food

c)

To make sure the conditions in the body are always changing

d)

To make sure the conditions in the body remain stable

8.
What is another word that can be used to describe "homeostasis"?
a)
STABLE
b)
EQUAL
c)
COMPLETE
d)
CORRECT
9.

Blood sugar regulation is an example of a ______________ loop

a)

positive

b)

negative

10.

The ability to maintain body temperature within a certain range is ...

a)

thermodynamics

b)

thermoregulation

c)

thermostat

d)

thermometer

11.
What describes a lack of water in the blood?
a)
Dehydration
b)
Rehydration
c)
Hydration
d)
Concentrated
12.

How does the body respond when more oxygen is required?

a)

Decreasing heart rate

b)

Increasing heart rate

c)

Decreasing blood pressure

d)

Increasing blood pressure

13.

Which of the following are in the correct order?

a)

organ system, cell, organ, tissue, organism

b)

cell, organ, tissue, organ system, organism

c)

cell, tissue, organelle, organ system, organism

d)

cell, tissue, organ, organ system, organism

14.

What type of feedback system does the model represent?

a)

positive

b)

negative

c)

neutral

d)

glyogen

15.

With low oxygen levels, your breathing rate will increase. When your oxygen levels rise, what is the appropriate response?

a)

stop breathing

b)

increase heart rate

c)

keep breathing rate high

d)

return breathing rate to baseline

16.

When your glucose levels are too high, what is the appropriate response?

a)

urinate

b)

release glucagon

c)

eat sugar

d)

release insulin

17.

When your glucose levels are too high, what is the appropriate response?

a)

urinate

b)

release glucagon

c)

eat sugar

d)

release insulin

18.

Identify the STIMULUS.

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

19.

Identify the RESPONSE.

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)

body temperature increases so the person begins to sweat

c)

body temperature decreases

d)

person begins to exercise

20.
What is the evaporation of a liquid to cool the body?
a)
Shivering
b)
Sweating
c)
Vasodilation
d)
Vasoconstriction