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Worksheets

Y9 Semester 1 revision

Total questions: 203

Worksheet time: 3hrs 41mins

Name
Class
Date
1.

What is the smallest unit of matter? It is composed of protons and neutrons, held together in the nucleus, and electrons around the nucleus in different electron orbitals, which form an electron cloud.

a)

cell

b)

nucleus

c)

atom

d)

electron

2.

What are any of the various self-contained units of matter or energy that are fundamental parts of all matter. These particles include electrons, protons, and neutrons.

a)

subatomic particles

b)

elements

c)

nucleus

d)

electron cloud

3.

What is a subatomic particle with a positive charge that is in the nucleus of an atom?

a)

neutron

b)

proton

c)

electron

d)

valence electron

4.

What is a subatomic particle without an electric charge, located in the nucleus of an atom?

a)

neutron

b)

proton

c)

electron

d)

valence electron

5.

What is a subatomic particle with a negative charge? It is found in the electron cloud surrounding the nucleus.

a)

neutron

b)

proton

c)

electron

d)

electron cloud

6.

What is the system of electrons surrounding the nucleus of an atom?

a)

valence electrons

b)

nucleus

c)

electrons

d)

electron cloud

7.

What is the center of an atom containing protons and neutrons?

a)

nucleus

b)

neutron

c)

proton

d)

electron cloud

8.

What is the number of protons in the nucleus of an atom that determines the chemical properties of an atom?

a)

mass number

b)

atomic mass

c)

atomic number

d)

atomic symbol

9.

What is the combined mass of all the protons and neutrons of an atom and is approximately equal to the number of protons and neutrons?

a)

atomic mass

b)

atomic number

c)

subatomic particles

d)

nucleus weight

10.

What is material that has mass and takes up space?

a)

volume

b)

mass

c)

matter

d)

density

11.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
12.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

13.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
14.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
15.
Arrangement of elements organized by atomic number
a)
Electron Cloud 
b)
Periodic Table 
c)
Electron Configuration
d)
None of these
16.
Calculation used to find the number of neutrons in an atom
a)
Atomic Mass - Atomic Number
b)
Atomic Number - Atomic Mass
c)
Atomic Mass - Electrons
d)
none of these
17.
The only element with no neutrons in its nucleus.
a)
Oxygen
b)
Helium 
c)
Hydrogen
d)
Lithium
18.
The nucleus of an atom is made of
a)
electrons and protons
b)
electrons and neutrons
c)
protons and neutrons
d)
empty space
19.

The term given to unstable radioactive atoms.

a)

Parent

b)

Daughter

c)

Half Life

d)

Igneous

20.

The diagram shows 32 atoms.

16 of the Red are parent isotopes

16 of the Green are daughter isotopes

How many half-lives have occurred?

a)

0

b)

1

c)

2

d)

3

21.

The diagram shows 32 atoms

32 of the Red are the parent isotope

0 of the atoms are daughter isotopes

How many half-lives have occurred?

a)

0

b)

1

c)

2

d)

3

22.

The diagram shows 32 atoms

8 of the Red are parent isotopes

24 of the Green are daughter isotopes

How many half-lives have occurred?

a)

0

b)

1

c)

2

d)

3

23.

What is the Half life of this isotope?

a)

5 seconds

b)

10 seconds

c)

15 seconds

d)

20 seconds

24.

What is the Half Life of this isotope?

a)

3 days

b)

5 days

c)

8 days

d)

10 days

25.
The rate at which a radioactive element decays is its ____.
a)
quarter life
b)
whole life
c)
wonderful life 
d)
half life
26.
Energy in the sun is produced as a result of nuclear ____ reactions.
a)
fusion
b)
fission
c)
waste
d)
sub
27.
The three types of nuclear radiation in order of increasing penetrating power are
a)
alpha, beta, gamma
b)
alpha, gamma, beta
c)
beta, alpha, gamma
d)
gamma, alpha, beta
28.
Name the type of radioactive particle that can be stopped by a sheet of paper.
a)
alpha
b)
beta
c)
gamma
d)
lambda
29.
Name the most penetrating type of radiation.
a)
alpha
b)
beta
c)
gamma
d)
lambda
30.
What makes something radioactive?
a)
elements with an atomic number above 81
b)
an unstable nucleus
c)
contaminated sewage
d)
It decays over time
31.
If the half life of a radioactive element is 100yrs, how long would it take for the radioactivity to reduce by one half?
a)
200yrs
b)
100yrs
c)
50yrs
d)
300yrs
32.
Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?
a)
0.25g
b)
2.5g
c)
25g
d)
80g
33.
An isotope of an element has the same number of _________, but a different number of _________.
a)
Protons, electrons
b)
Protons, neutrons
c)
Electrons, neutrons
34.
What type of radioactive decay is shown here?
a)
Alpha decay
b)
Beta decay
c)
Gamma decay
35.
Which type of radiation releases an electron?
a)
Alpha radiation
b)
Beta radiation
c)
gamma radiation
36.
Which is NOT a characteristic of gamma radiation?
a)
High energized photon of light
b)
Can be stopped by a sheet of aluminum foil
c)
Is the most harmful type of radiation to humans
d)
Our use of protection is concrete, or several inches of lead
37.
Where does radioactivity have application in our lives?
a)
Medicine
b)
Energy (electricity)
c)
Agriculture
d)
All of the above
38.
In a nuclear reactor, electricity is produced from what element?
a)
Plutonium
b)
Uranium 235
c)
Radon 220
d)
Lead 232
39.
How do nuclear power-plants work?
a)
Fusion
b)
Half-life
c)
Fission
d)
Fusion or fission
40.
_______________ is the process by which unstable atoms emit radiation until they become stable.
a)
Radiation
b)
Chemical Reaction
c)
Radioactive Decay
d)
Isotopes
41.
_______________ is the process by which unstable atoms emit radiation until they become stable.
a)
Radiation
b)
Chemical Reaction
c)
Radioactive Decay
d)
Isotopes
42.
What is an isotope? 
a)
A charged atom
b)
An atom with different amounts of neutrons
c)
An atom with different amounts of protons
d)
A neutral atom
43.

A chemical change is different than a physical change because in a chemical change

a)

chemicals are used

b)

molecules do not physically touch

c)

a new substance is formed and in a physical no new substance is formed

d)

the change can be seen but in a physical change it cannot

44.

Which of the following 2 are chemical reactions?

a)

sugar dissolving in water

b)

water turning into steam

c)

burning wood

d)

mixing baking soda and vinegar

e)

tearing paper

45.

In a chemical reaction, if the reactants are heated, the reaction usually happens

a)

slower

b)

faster

c)

at the same rate

d)

in a smaller volume

46.

Is this chemical equation balanced? Why or why not? Choose the BEST answer.

a)

Yes, the amount of atoms for each element are equal on both the reactant and product side.

b)

No, the carbons are not the same number on both the reactant and product side.

c)

No, neither the carbons or hydrogens are the same amount on both the reactant and product side.

d)

No, none of the elements (carbon, hydrogen, or oxygen) are the same amount on both the reactant and product side.

47.

Which of the following is the word equation for cellular respiration?

a)

water + carbon dioxide + energy ---> glucose + oxygen

b)

water + glucose ---> energy + carbon dioxide + oxygen

c)

oxygen + carbon dioxide ---> water + energy + glucose

d)

glucose + oxygen ---> water + carbon dioxide + energy

48.

What is the purpose of cellular respiration. Select all that apply.

a)

to form glucose

b)

to form oxygen

c)

to form carbon dioxide

d)

to form energy

e)

to form water

49.

Which of the following is a common sign that a chemical change has occurred?

a)

A chemical has turned a different color, bubbled, and/or changed temperature.

b)

A chemical has changed to a different state of matter, such as a liquid to a solid.

c)

A chemical has changed size.

d)

A chemical has become a different shape.

50.

1. How is a chemical change different from a physical change?

a)

there is no difference

b)

a physical change creates a new substance

c)

a chemical change creates a new substance

51.
the starting materials in a chemical reaction
a)
Products
b)
Reactants
c)
Starters
d)
Enders
52.

In chemical reactions, what does the Law of Conservation of Matter mean?

a)

Matter is not created or destroyed.

b)

The total mass of the reactants is greater than the total mass of the products.

c)

The total mass of the reactants is less than the total mass of the products.

d)

Matter is not changed.

53.
The substances listed on the right side of a chemical equation are the
a)
Yields
b)
Reactants
c)
Products
d)
Precipitates
54.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
55.
Which observation(s) might be used as evidence that a chemical reaction occurred?
a)
Color change
b)
Odor change
c)
Properties change
d)
All of the above
56.

A substance produced during a chemical reaction

a)

Product

b)

Reactant

c)

Properties

57.

A substance that takes part in and undergoes change during a reaction

a)

Product

b)

Molecule

c)

Reactant

58.

The reactants in the image above are:

a)

CH4 and 2 O2

b)

2 H2O and CO2

c)

All of these are reactants

d)

All of these are products

59.

The products in the image above are:

a)

CH4 and 2 O2

b)

2 H2O and CO2

c)

All of these are reactants

d)

All of these are products

60.
The right side of the equation below is called the
a)
products
b)
reactants
61.

Energy is ______ when bonds break.

a)

gained

b)

lost

c)

released

d)

absorbed

62.

 C2H6 + 5O2 → 2CO2 + 3H2O2C_2H_6\ +\ 5O_2\ \rightarrow\ 2CO_2\ +\ 3H_2O_2  
Given this chemical equation, what are the REACTANTS?

a)

 C2H6 and 5O2C_2H_{6\ }and\ 5O_2  

b)

 2CO2 and 3H2O22CO_2\ and\ 3H_2O_2  

63.

The formula shown here represents the breakdown of a metal into rust. What elements are involved in this reaction? Check all that apply. 4Fe + 3O2 → 2Fe2O34Fe\ +\ 3O_2\ \rightarrow\ 2Fe_2O_3  

a)

Iron

b)

Oxygen

c)

Carbon

d)

Nitrogen

64.

Review the image here. Which type of equation- balanced or unbalanced, accurately follows the Law of Conservation of Mass?

a)

Balanced Equations

b)

Unbalanced Equations

65.

Observe the reaction shown here. The formula for this equation is  N2 + H2 → NH3N_2\ +\ H_2\ \rightarrow\ NH_3  . What do you observe about the atoms of hydrogen in this reaction?

a)

There are 2 atoms of hydrogen in the reactants and only 1 in the products. This violates the Law of Conservation of Mass.

b)

There are 2 atoms of hydrogen in the reactants and 3 in the products. This violates the Law of Conservation of Mass. 

c)

There are 2 atoms of hydrogen in the reactants and 2 in the products. This is in line with the Law of Conservation of Mass. 

66.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
67.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
68.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
69.
Which of the following shows the correct way to balance the chemical equation?
Fe + O2 -> Fe2O3
a)
4Fe + 3O2 -> 2Fe2O3
b)
2 Fe + 3O2 -> Fe2O6
c)
4 Fe + O6 -> 2Fe2O3
d)
None of the options are correctly balanced.
70.
Which of the following reactions is balanced?
a)
2CH4 + O2 -> CO2 + H2O
b)
CH4 + 2O2 -> CO2 + H2O
c)
CH4 + 2O2 -> CO2 + 2H2O
d)
None of the chemical equations are balanced.
71.
How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
72.
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
a)
2, 6, 3, 2
b)
it is already balanced
c)
4, 12, 3, 4
d)
2, 1, 4, 5
73.
The substances listed on the right side of a chemical equation are the
a)
Yields
b)
Reactants
c)
Products
d)
Precipitates
74.
The substances listed on the left side of a chemical equation are the
a)
Products
b)
Coefficients
c)
Precipitates
d)
Reactants
75.

What is an example of endothermic process?

a)

Chemical Ice Pack

b)

Boiling Water

c)

Bonfire

76.

In an endothermic reaction, energy is _________.

a)

absorbed

b)

released

77.

____ reactions usually feel cold.

a)

endothermic

b)

exothermic

78.

_____ reactions usually feel hot!

a)

endothermic

b)

exothermic

79.

gas --> liquid --> solid is what type of reaction?

a)

endothermic

b)

exothermic

c)

catalytic

d)

inhibited

80.

Baking pizza in the oven

a)

endothermic

b)

exothermic

81.

Ice cubes in your glass of soda melt.

a)

endothermic

b)

exothermic

82.

A sunflower makes food during photosynthesis.

a)

exothermic

b)

endothermic

83.

In an endothermic reaction, heat is ...

a)

taken in

b)

given out

84.

Which of these pH values represent an acid?

a)

4

b)

8

c)

10

d)

12

85.

Milk is a very weak acid. What might its pH value be?

a)

6.5

b)

7.8

c)

4.2

d)

12.2

86.

Which of the following is a property of a base?

a)

bitter taste

b)

reacts with metals

c)

salty

d)

sour taste

87.

Bases have many uses. They are mainly used to make

a)

cleaning products

b)

soaps

c)

concrete

d)

all of the answer choices

88.

The strongest bases have pH values close to

a)

0

b)

14

c)

7

d)

5

89.

If the substance is neutral, what would the pH be?11

a)

3

b)

5

c)

7

d)

9

e)

11

90.
If an acid is combined with a base of equal strength, the result will most likely be
a)
a neutral solution.
b)
a stronger acid.
c)
impossible to tell without testing the pH.
d)
a stronger base
91.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
92.

What would be considered the weakest base?

a)

3

b)

14

c)

8.2

d)

11.6

93.

Which property is not associated with acids?

a)

Sour taste

b)

strong acids can burn you

c)

turns litmus paper blue

d)

reacts with metals

94.

Which of the following is true about acids and bases?

a)

The lower the pH #, the stronger the acid

b)

the higher the pH #, the stronger the acid

c)

The lower the pH #, the more neutral the acid

d)

The higher the pH #, the weaker the base

95.

You test a solution with pH paper, and the paper turns blue. The solution is ______.

a)

neutral

b)

an acid

c)

a base

d)

an acid & a base

96.
Acid + Metal --> ?
a)
Salt + Water
b)
Salt + Hydrogen
c)
Salt
d)
Hydrogen
97.
Iron + Hydrochloric acid --> ?
a)
iron sulfate + water
b)
iron + hydrogen
c)
iron chloride + hydrogen
d)
iron chloride + water
98.
Magnesium + sulphuric acid --> ?
a)
magnesium sulfate + water
b)
magnesium sulfate + hydrogen
c)
magnesium chloride + hydrogen
d)
magnesium chloride + water
99.
Magnesium + sulphuric acid --> ?
a)
magnesium sulfate + water
b)
magnesium sulfate + hydrogen
c)
magnesium chloride + hydrogen
d)
magnesium chloride + water
100.
Which gas gives out a 'squeaky pop' when a lit splint is placed in it?
a)
hydrogen
b)
oxygen
c)
carbon dioxide
d)
nitrogen
101.
Which metal is the least reactive out of: copper, magnesium, zinc and iron?
a)
copper
b)
magnesium
c)
zinc
d)
iron
102.
Which metal is the most reactive out of: copper, magnesium, zinc and iron?
a)
copper
b)
magnesium
c)
zinc
d)
iron
103.
What gas is produced when a metal reacts with an acid?
a)
Water vapour
b)
Acidic gas
c)
Hydrogen
d)
Nitrogen
104.
Which salt will be produced if magnesium react with hydrochloric acid?
a)
Magnesium oxide
b)
Magnesium sulfate
c)
Magnesium sulfide
d)
Magnesium chloride
105.
An acid reacts with a metal carbonate to produce 
a)
Salt, water and hydrogen gas
b)
Salt, water and carbon dioxide
c)
Limewater
d)
Salt and water 
106.
A neutralisation reaction is a reaction between 
a)
Acid and a Base 
b)
Acid and water 
c)
Base and water 
d)
None of the above 
107.
An acid reacts with metal to produce 
a)
Carbon dioxide 
b)
Hydrogen gas
c)
Hydrogen gas and water 
d)
Salt and hydrogen gas 
108.
An acid reacts with a metal carbonate to produce 
a)
Salt, water and hydrogen gas
b)
Salt, water and carbon dioxide
c)
Limewater
d)
Salt and water 
109.
Pure water is _______ on the pH scale.
a)
Acid
b)
Base
c)
Neutral
110.
What is essential for a combustion reaction to begin?
a)
Carbon dioxide
b)
Fuel 
c)
Fuel, oxygen and heat
d)
Water and oxygen
111.
Which of the following chemical reactions involve combustion?
a)
A forest fire
b)
Human digestion
c)
A car using gasoline
d)
All of the above
112.

8.7: Combustion is when a __________ reacts with oxygen

a)

petrol

b)

fuel

c)

fire triangle

d)

carbon dioxide

113.
What are the types of combustion?
a)
Complete & incomplete
b)
Incomplete & inexact
c)
Impossible & complete
d)
Computer & incompete
114.
Complete combustion is when there is plenty of oxygen to react with. 
a)
True
b)
False
115.
Incomplete combustion is when there is a limited amount of oxygen.
a)
True
b)
False
116.
Another term for burning is
a)
Fire triangle
b)
Magnesium oxide
c)
Combustion
d)
Bustion
117.
Is combustion a reversible reaction?
a)
Yes.
b)
No.
118.
The word equation for combustion is:
fuel + oxygen -->
 water + ________ __________
a)
Carbon dioxide
b)
Limewater
119.
All combustion reactions are 
a)
endothermic
b)
exothermic
c)
neutral
d)
fast
120.

What is the main function of the nervous system?

a)

to inhale oxygen and exhale carbon dioxide

b)

to break down food consumed by a person for nutrients

c)

to control the body's activities by relaying messages

d)

to control the body's movements

121.

What are the two divisions of the nervous system?

a)

Central and Lower nervous systems

b)

Central and Peripheral nervous systems

c)

Lower and Cerebral nervous systems

d)

Central and Muscular nervous systems

122.

A nerve cell is called a:

a)

neutron

b)

nerve

c)

neuron

d)

synapse

123.

Dendrites are part of a neuron that carries electrical signals _______ the cell body.

a)

to

b)

away

c)

in between

124.

Axons are part of a neuron that send electrical signals ________ the cell body

a)

to

b)

away from

c)

in between

125.

The space between an axon of a neuron that is communicating with a dendrite of another neuron is called a ________________.

a)

Neuron

b)

Brain message

c)

Stimulus

d)

Synapse

126.

Senses recognize ____________ which are recognized by the brain and results in a response.

a)

Synapses

b)

Brain messages

c)

Stimuli (plural of stimulus)

d)

Cerebrums

127.

The cerebellum is labeled as #...

a)

1

b)

2

c)

3

128.

The brain stem/medulla is labeled as #...

a)

1

b)

2

c)

3

129.

#1 is pointing to the...

a)

cerebrum

b)

cerebellum

c)

medulla

130.

Which part of the brain controls involuntary movements such as digestion and your heartbeat?

a)

cerebrum

b)

cerebellum

c)

medulla/spinal cord

131.

Which part of the brain controls senses, thinking, and memory?

a)

cerebrum

b)

cerebellum

c)

medulla

132.

When the spinal cord responds in an emergency to a stimulus before the brain, this is called a...

a)

response

b)

synapse

c)

cerebral response

d)

reflex

133.

Which of the following is NOT a sense?

a)

hearing

b)

nose

c)

smell

d)

touch

134.
What does the cerebrum control?
a)
controls thoughts and voluntary actions
b)
controls vital and involuntary actions 
c)
controls balance
d)
controls the uvula
135.
What is the part highlighted in red?
a)
Cerebrum
b)
Cerebellum
c)
Brain Stem
d)
Diencephalon
136.
Which part of the brain controls reflexes?
a)
Cerebrum
b)
Cerebellum
c)
Brain stem
d)
Spinal cord
137.

What is the biggest function of the muscular system?

a)

to help digest food

b)

to help us move

c)

to help us breathe

d)

to help us remove waste

138.

What is the biggest function of the respiratory system?

a)

to pump blood

b)

to help us digest food

c)

to take in oxygen and release carbon dioxide

d)

to help us fight disease and infection

139.

Which of the following statements describes the function of the heart?

a)

The heart produces white and red blood cells.

b)

The heart controls the nervous system.

c)

The heart makes oxygen and carbon dioxide.

d)

The heart pumps blood throughout the body.

140.

Which system in the human body functions primarily to supply the blood with oxygen and remove carbon dioxide?

a)

excretory

b)

immune

c)

respiratory

d)

cardiovascular

141.

Which two body systems are primarily responsible for gas exchange between the body and the environment?

a)

skeletal and muscular

b)

circulatory and respiratory

c)

circulatory and digestive

d)

respiratory and excretory

142.

How does the respiratory system depend on the circulatory system in order to function?

a)

The circulatory system brings waste gases to the lungs and exchanges them for oxygen.

b)

The circulatory system provides structural support and protection to the respiratory system.

c)

The circulatory system pushes gases out of the body through the mouth and nose.

d)

The circulatory system sends messages to the lungs so that one can breathe in and out.

143.

How does the circulatory system depend on the respiratory system in order to function?

a)

The respiratory system removes bacteria from the circulatory system.

b)

The respiratory system produces circulatory system cells.

c)

The respiratory system delivers oxygen to the circulatory system.

d)

The respiratory system provides protection to the circulatory system.

144.

How does the circulatory system depend on the skeletal system?

a)

The skeletal system removes carbon dioxide from the circulatory system.

b)

The skeletal system produces blood cells in the bone marrow.

c)

The skeletal system is responsible for voluntary movement.

d)

The skeletal system helps to digest food for the circulatory system.

145.

What is the most important function of the digestive system?

a)

Gas exchange

b)

Break down food

c)

Voluntary movement

d)

Fight bacteria and disease

146.

Which is not an important organ in the excretory system?

a)

Bladder

b)

Large Intestine

c)

Esophagus

d)

Kidneys

147.

How does the immune system depend on the circulatory system in order to function?

a)

The circulatory system produces antibodies used by the immune system.

b)

The circulatory system sends bacteria and viruses to the immune system.

c)

The circulatory system transports immune system cells throughout the body.

d)

The circulatory system protects the immune system from diseases.

148.
What is mean by homeostasis?
a)
Controls and coordinates body activities through chemical 
b)
controls and coordinates body activities through electrical impulses
c)
For maintenance of a steady state in the internal environment
d)
remove metabolic waste products from the cel
149.
which of the factors not affecting the internal environment?
a)
Temperature
b)
Respiration
c)
pH value
d)
Osmotic pressure
150.

Which of the following is an example of positive feedback?

a)

Thermoregulation

b)

Blood Pressure

c)

Childbirth

d)

Blood Sugar Levels

151.

Which body system controls the body to maintain homeostasis?

a)

excretory

b)

nervous

c)

circulatory

d)

skeletal

152.
a body system that controls growth and homeostasis by secreting hormones from glands.
a)
skeletal system
b)
nervous system
c)
endocrine sytem
d)
integumentary system
153.
organ of the endocrine system that secretes hormones.
a)
heart
b)
gland
c)
brain
d)
skin
154.

something that causes a response is called a

a)

response

b)

stimulus

c)

touch

d)

survival

155.

Define stimulus.

a)

Change in an organism’s environment that causes it to react.

b)

How the organism reacts to the stimulus.

156.

Bright light

a)

stimulus

b)

response

157.

Screaming due to fear

a)

stimulus

b)

response

158.

What type of neuron is A?

a)

Sensory

b)

Inter

c)

Motor

159.

What type of neuron is C?

a)

Sensory

b)

Inter

c)

Motor

160.

What type of neuron is C?

a)

Sensory

b)

Inter

c)

Motor

161.

Name an effector in this diagram.

a)

A

b)

B

c)

D

d)

E

e)

F

162.

An example of a reflex action includes

a)

Touching a butterfly

b)

Brushing your hand against the side of your body

c)

Touching a hot stove

d)

Your legs moving as you walk

163.

In a reflex arc, the sensory neuron leads to the ___________ and the motor neuron leads to the __________

a)

Spinal cord, CNS

b)

CNS, muscle

c)

Spinal cord, muscle

d)

Muscle, CNS

164.

Reflex actions are important because

a)

They provide a quick, involuntary response

b)

They prevent injury

c)

They are essential to the survival of organisms

d)

All of the above

165.

Which type of neuron causes a muscle to contract in a reflex arc?

a)

Motor Neuron

b)

Sensory Neuron

c)

Interneuron

d)

Effector

166.

True or False: Interneurons can be found in the spinal cord.

a)

True

b)

False

167.
Serotonin is a neurotransmitter that helps regulate:
a)
learning and memory
b)
pain and pleasure
c)
muscle movements
d)
sleep, moods/emotions
168.
This neurotransmitter is most often associated with pleasure/reward sensations:
a)
Acetylcholine
b)
GABA
c)
Dopamine
d)
Serotonin
169.
What is a neurotransmitter?
a)
fatty covering of the axon
b)
nerve cell
c)
chemical messenger
d)
gap between neurons
170.

Which pathogen is non-living?

a)

Virus

b)

Bacteria

c)

Fungi

d)

Parasite/Protist

e)

They are all alive

171.

Which pathogen is treated with antibiotics?

a)

virus

b)

bacteria

c)

parasite

d)

fungi

172.

Influenza is caused by:

a)

virus

b)

bacteria

c)

parasite

d)

fungi

173.

Malaria is caused by:

a)

parasite

b)

fungi

c)

virus

d)

bacteria

174.

Athlete's Foot is caused by:

a)

fungus

b)

bacteria

c)

parasite

d)

virus

175.
An infectious disease:
a)
can be spread from person to person.
b)
can not be spread from person to person.
176.
True or False:
Allergies are an infectious disease?
a)
True
b)
False
177.
True or False:
Asthma is a non-infectious disease?
a)
True
b)
False
178.
One way to prevent the spreading of disease is:
a)
to cough without covering your mouth.
b)
to wash your hands often.
c)
to rub your eyes and nose when sick.
179.

Non-infectious diseases can be caused by

a)

Pathogens

b)

Animal bites

c)

Lifestyle choices

d)

Contaminated water

180.
Name this process
a)
eating
b)
phagocytosis
c)
destruction
d)
ingesting
181.
HIV is an example of what kind of transmission?
a)
Bloodborne
b)
Waterborne
c)
Airborne
182.
What is the scientific term for spreading a disease?
a)
Passing
b)
Catching
c)
Transmitting
d)
Giving
183.
What is one way a pathogen can enter the body?
a)
Nose
b)
Mouth
c)
Broken Skin
d)
All of the Aove
184.
What pathogen causes the common cold?
a)
Virus
b)
Bacteria
c)
Fungi
d)
Protista
185.
Some staphylococcal infections result from direct contact with infected wounds.
Which of the following cells is a first line of defence against staphylococcal bacteria? 
a)
B cells
b)
Skin cells
c)
Killer T cells
d)
Helper T cells
186.
Disease-causing microorganism, such as a bacterium or virus.
a)
pathogen 
b)
allergen
c)
prion 
d)
antigen 
187.
What do white blood cells do?
a)
Seek out and kill all living tissue
b)
Seek out and kill pathogens
c)
Transport food around the body
d)
Repair cuts and injuries
188.
Which of the following is NOT a nonspecific defense?
a)
mucus
b)
sweat
c)
antibodies
d)
tears
189.

First line defenses include

a)

skin

b)

hair

c)

mucus

d)

all of the above

190.

Skin protects a person from pathogens by _______________.

a)

being thin and easy to allow things through

b)

shedding occasionally

c)

serving as a protective layer that keeps foreign objects out

d)

allowing bacteria to enter if it is healthy

191.

Which parts of the respiratory system keep pathogens from reaching the inside of your body? (select all that apply)

a)

nose hair

b)

lungs

c)

mucus

d)

blood

192.

Select 3 ways that your digestive system works to protect you form pathogens that have entered your body on food?

a)

by using stomach acids to neutralize the pathogen

b)

causing you to vomit

c)

causing you to have diarrhea

d)

causing you to burp

193.

White blood cells and inflammatory response is part of what line of defense?

a)

first line

b)

second line

c)

third line

d)

fourth line

194.

What is the best definition of antibodies?

a)

antibiotics that help you when you are sick

b)

organs that create pathogens

c)

pathogens that enter the bloodstream

d)

proteins that attach to antigens and make them useless

195.

All bacteria cause illness and disease.

a)

TRUE

b)

FALSE

196.

Lymphocytes produce

a)

antigens

b)

phagocytes

c)

antibodies

d)

pathogens

197.

Vaccines only work if at least

a)

85% of the people are vaccinated

b)

80% of the people are vaccinated

c)

90 % of the people are vaccinated

d)

100% of the people are vaccinated

198.

A vaccination

a)

Is a type of white blood cell that eats bacteria

b)

Protects your body via needle or capsule

c)

Causes your body to react as if it had met a pathogen

d)

Is made up of collagen, and can be in the form of gelatine

199.

Name the system that will directly respond to these vaccines.

a)

Excretory

b)

Digestive

c)

Immune

d)

Endocrine

200.
What do memory cells do?
a)
Kills the virus
b)
Eats the virus
c)
Patrol the area and make the immune system work faster next time.
d)
Makes antibodies
201.
Antibodies are made by...
a)
Your own cells.
b)
The pathogen.
202.
 Following a vaccination, the white cells produce . . .
a)
antibiotics
b)
antibodies
c)
statins.
d)
toxins.
203.

An immune response is primarily due to the body’s white blood cells recognizing

a)

a hormone imbalance

b)

abiotic organisms

c)

foreign antigens

d)

known antibiotics

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