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Homeostasis and Feedback Loops Review- NGSS

Total questions: 50

Worksheet time: 33mins

Name
Class
Date
1.

In the human circulatory system, the circuit (or loop) that carries oxygenated blood from the left side of the heart and then returns deoxygenated blood from the body back to the right side of the heart is the (a)  

Choose from the below words
Systemic Circuit
Pulmonary Circuit
Return Circuit
2.

In the human circulatory system, the circuit that carries deoxygenated blood from the right side of the heart and brings oxygenated blood back to the left side of the heart is (a)  

Choose from the below words
Pulmonary Circuit
Systemic Circuit
Homeostatic Circuit
3.
The part of the brain responsible for thermoregulation is the....
a)
The hypothalamus
b)
The medulla oblongata
c)
The motor cortex
d)
The frontal lobe
4.
When your body senses you are warm, your blood vessels dilate and you begin to sweat. This is an example of...
a)
Negative feedback
b)
Positive feedback
c)
Positive and negative feedback
5.
When your body senses you are warm, your blood vessels constrict and you begin to shiver. This is an example of...
a)
Negative feedback
b)
Positive feedback
c)
Positive and negative feedback
6.
When your body is too hot, the hypothalamus activates the capillaries and sweat glands in order to cool the body down. In this example of a feedback loop- what is the effector
a)
Hypothalamus
b)
Body cools down
c)
sweat glands and capillaries
7.
This image shows the feedback loop(s) regulating blood sugar in the human body What is the signal in the negative portion of this system
a)
Insulin
b)
Glucagon
c)
The liver
d)
Glycogen
8.
When your body is too hot, the hypothalamus activates the capillaries and sweat glands in order to cool the body down. This is an example of....
a)
Positive feedback
b)
Negative feedback
c)
Both of the above
9.
When your body is too hot, the hypothalamus activates the capillaries and sweat glands in order to cool the body down. In this example of a feedback loop- what is the response
a)
Hypothalamus
b)
Body cools down
c)
Activating the sweat glands and capillaries
10.
When your body is too hot, the hypothalamus activates the capillaries and sweat glands in order to cool the body down. In this example of a feedback loop- what is the effector
a)
Hypothalamus
b)
Body cools down
c)
sweat glands and capillaries
11.
All feedback loops have a stimulus, an effector, and a _________________
a)
response
b)
purpose
c)
positive impact
d)
negative impact
12.
The neurotransmitter noradrenaline binds to the sinoatrial node (pacemaker) in the heart and boosts the rate and strength of heart contractions. This is an example of....
a)
An effector pathway
b)
A sensory pathway
c)
A neural control center
13.
This image shows the feedback loop(s) regulating blood sugar in the human body What is the response in this feedback loop
a)
Blood glucose levels rising or falling
b)
The pancreas releasing insulin
c)
The liver breaking down glycogen and releasing glucose
d)
Eating a cupcake
14.

According to the model, what would happen if the pancreas did NOT detect rising blood glucose (sugar) level?

a)

Blood sugar would return to normal

b)

Most body cells would take up more glucose

c)

Blood sugar would stay above normal

d)

The liver would get the message to store glucose as glycogen

15.

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

a)

thermodynamics

b)

thermoregulation

c)

thermostat

d)

thermometer

16.
Homeostasis
a)
allows for a wildly fluctuating internal environment
b)
is impossible in vertebrates
c)

is the maintenance of a relatively stable internal environment

d)

is the maintenance of a relatively stable external environment

17.

When you exercise, what gas does your body NEED more of?

a)

Blood

b)

Carbon dioxide

c)

Hydrogen

d)

Oxygen

18.

According to the model, what is the response to LOW blood glucose (sugar)?

a)

Pancreas releases insulin into blood

b)

Pancreas releases glucagon into blood

19.
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
20.

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

21.

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

22.
What type of feedback loop is shown?
a)
negative
b)
neutral 
c)
positive
23.
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
24.

Which hormone is released when blood sugar gets too high?

a)

glucose

b)

glucagon

c)

glycogen

d)

insulin

25.

The kinds of chemicals that control feedback loops

a)

hormones

b)

homeostasis

c)

disease

26.

Sweating when exercising or hot outside

a)

Negative Feedback Loop

b)

Positive Feedback Loop

27.

The ______ system helps you move, protects your organs, gives support to the body, and makes red blood cells.

a)

skeletal system

b)

muscular system

c)

digestive system

d)

respiratory system

28.

The ________ system works with the skeletal system to help you move and provides shape and warmth.

a)

skeletal

b)

integumentary

c)

muscular

d)

digestive

29.

The _____ system's function is to break down food into molecules that the body (cells) can use for energy.

a)

muscular

b)

digestive

c)

respiratory

d)

endocrine

30.

The _____ system is a transport system, carrying oxygen, carbon dioxide, and wastes to and away from cells using the heart and blood.

a)

endocrine

b)

circulatory

c)

respiratory

d)

excretory

31.

The ______ system's function is gas exchange. It brings oxygen in and exhales carbon dioxide with the lungs, trachea, and diaphragm

a)

endocrine

b)

excretory

c)

circulatory

d)

respiratory

32.

The _______ system includes the skin, hair, and nails. It is the body's first line of defense, absorbs vitamin D, excretes sweat.

a)

respiratory

b)

nervous

c)

Integumentary

d)

skeletal

33.

This system controls the body using the brain, spinal cord, and nerves.

a)

nervous system

b)

endocrine system

c)

excretory system

d)

digestive system

34.

The ________ system is made of glands that secrete hormones into the blood to maintain homeostasis (balance)

a)

excretory

b)

endocrine

c)

digestive

d)

circulatory

35.

The ______ system removes the body's wastes through the kidneys (cell wastes), digestive (feces), respiratory (CO2), and integumentary (salts/sweat)

a)

excretory

b)

digestive

c)

respiratory

d)

circulatory

36.

Identify each step in the hormone signaling pathway

a)Signal
b)Receptor
c)Signal Transduction
d)Response
1
2
3
4
1)
2)
3)
4)
37.

Each of the 11 body systems:

a)

Is interchangeable

b)

Depends on others to function

c)

Performs a single task

d)

Is controlled by the lungs

38.

The excretory system gets rid of:

a)

Nutrients

b)

Cartilage

c)

Waste

d)

Oxygen

39.

The _______ system delivers oxygen and nutrients to every cell in the body.

a)

Circulatory

b)

Lymphatic

c)

Integumentary

d)

Nervous

40.

Place the systems above or under their correct body organ diagrams. The box is over or under the center of the body it belongs too.

a)Muscular
b)Skeletal
c)Circulatory
d)Nervous
e)Respiratory
f)Digestive
1
2
3
4
5
6
1)
2)
3)
4)
5)
6)
41.

Match the following body functions to the two systems that are working together to complete the function.

a)

Vomiting up food

1.

Digestive & Muscular

b)

Running a mile

2.

Circulatory & Respiratory

c)

Getting Pregnant

3.

Reproductive & Endocrine

d)

Becoming sick

4.

Immune & Endocrine

e)

Burning your skin

5.

Integumentary & Nervous

42.

Match the organ system with its function(s).

a)

Integumentary System

1.

Protects the body and helps control body temperature

b)

Skeletal System

2.

Provides support, protects organs, helps the body move

c)

Respiratory System

3.

Takes in oxygen and removes carbon dioxide

d)

Digestive System

4.

Breaks down food, absorbs nutrients, and removes waste

43.

Match the organ system with its function

a)

Nervous System

1.

Controls the body

b)

Circulatory System

2.

Transports oxygen and nutrients through the body

c)

Muscular System

3.

Helps move the body

d)

Excretory System

4.

Removes waste

44.

Which system transports nutrients and oxygen to the parts of the body? (a)  

Choose from the below words
Respiratory System
Digestive System
Circulatory System
Integumentary System
45.

listening to sounds of the body (with stethoscope)

a)

Palpation

b)

Auscultation

46.

The purpose of the heart valves are to

a)

slow the blood as it enters a ventricle

b)

slow the blood as it enters the atria

c)

prevent blood from flowing backward

d)

prevent blood from flowing into the lungs

47.

ECG stand for

a)

Electrocardiograph

b)

Electrocardiogram

c)

Electrocardiopraphy

d)

Electronicardiogram

48.

ECG is a reading that shows

a)

the activity of heart

b)

the electrical activity of cardiac muscle

c)

the systole and diastole of cardiac muscle

d)

the initiation of heartbeat

49.

What does MRI stand for?

a)

MAGNETIC RESONANCE IMAGING

b)

MAGNETIC RADIATION

IMAGING

c)

MERCURY

RADIATION

IMAGING

d)

MERCURY

RADIO WAVES

IMAGING

50.
Which of the following define diastole and systole
a)
systole is the contraction of the heart and diastole is the relaxation of the heart
b)
diastole is the contraction of the heart and systole is the relaxation of the heart
c)
diastole and systole are both contractions of the heart
d)
diastole and systole are both relaxation phases of the heart

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