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WorksheetsWJEC Applied Science - Unit 1 Revision
Total questions: 100
Worksheet time: 1hrs 5mins
Name
Class
Date
1.
Which of the following is the smallest unit of life that can carry out all life functions?
a)
the mitochondria
b)
the vacuoles
c)
the nucleus
d)
the cell
2.
Which cell structure is found in plant and animals cells and controls what can come into or leave a cell?
a)
cell membrane
b)
cytoplasm
c)
nucleus
d)
vacuole
3.
What is the function of the cell nucleus found in both plant and animal cells?
a)
to produce energy
b)
to control cell activity
c)
to remove waste products
d)
to allow molecules to enter the cell
4.
Chloroplasts in plant cells allow the plant to perform a function that animal cells cannot do. What is the main function of the chloroplasts found in plant cells?
a)
to absorb light energy and manufacture food
b)
to remove waste materials by active transport
c)
to manufacture chemical energy from food
d)
to control the shape of the cell
5.
What is the function of a cell wall?
a)
to protect and support the cell
b)
to perform different functions in each cell
c)
to prevent water from passing through it
d)
to prevent oxygen from entering the cell
6.
A rigid layer that lies outside the cell's membrane is...
a)
Cytoplasm
b)
Cell membrane
c)
Cell Wall
d)
Flagella
7.
What is the process called when you breath in the air?
a)
inhalation
b)
exhalation
8.
What is the process called when you breath out the air?
a)
inhalation
b)
exhalation
9.
Which of the following show the air passage for inhalation?
a)
lungs --> nose --> trachea
b)
nose --> trachea --> lungs
c)
nose --> lungs --> trachea
d)
trachea --> lungs --> nose
10.
How do your chest move during inhalation?
a)
goes up and inflate
b)
goes down and contract
c)
no movement
11.
How do your chest move during exhalation?
a)
goes up and inflate
b)
goes down and contract
c)
no movement
12.
Identify the nose.
a)
A
b)
B
c)
C
d)
D
13.
Identify the bronchi.
a)
A
b)
B
c)
C
d)
D
14.
Identify the lungs.
a)
A
b)
B
c)
C
d)
D
15.
Identify the ribcage.
a)
C
b)
D
c)
E
d)
F
16.
Identify the diaphragm.
a)
C
b)
D
c)
E
d)
F
17.
Lime water turns _____________ when it reacts with ______________
a)
cloudy, water vapour
b)
cloudy, carbon dioxide
c)
clear, water vapour
d)
clear, carbon dioxide
18.
cobalt chloride turns from blue to _________ when it reacts with ____________.
a)
pink, water vapour
b)
pink, carbon dioxide
c)
green, water vapour
d)
green, carbon dioxide
19.
Tube that carries swallowed food to the stomach
a)
esophagus
b)
liver
c)
pancreas
d)
rectum
20.
What happens when the food goes to the small intestine?
a)
nutrients gets into the blood
b)
the food keeps on going
c)
nothing
21.
The organ in orange represents the:
a)
Liver
b)
Lung
c)
Stomach
d)
Pancreas
22.
The highlighted organ is the
a)
liver
b)
large intestine
c)
small intestine
d)
stomach
23.
Chewing food is an example of _____________.
a)
chemical digestion
b)
mechanical digestion
24.
The acid in your stomach used for digestion.
a)
sodium bicarbonate
b)
insulin
c)
hydrochloric
d)
amylase
25.
Bile is made by which digestive organ?
a)
Gallbladder
b)
Stomach
c)
Rectum
d)
Liver
26.
Which is NOT a function of the Digestive System?
a)
To rid the body of solid waste
b)
Absorb nutrients for energy & growth
c)
Break down nutrients from food
d)
Pump blood around the body
27.
The opening at the end of the digestive system where solid waste comes out is the...
a)
rectum
b)
anus
c)
mouth
d)
large intestine
28.
This organ does not actually touch the food but it secretes enzymes to help break down foods.
a)
Esophagus
b)
Pancreas
c)
Large Intestine
d)
Rectum
29.
The lining of the small intestine that absorbs the nutrients from digested foods.
a)
Ureters
b)
Villi
c)
Gallbladder
d)
Pancreas
30.
Another name for the Large Intestine.
a)
Colon
b)
Bobo
c)
Dabbin
d)
Villi
31.
a)
Liver
b)
Esophagus
c)
Urethra
d)
Large Intestine
32.
a)
Pancreas
b)
Stomach
c)
Small Intestine
d)
Liver
33.
Secretes enzymes
a)
Pancreas
b)
Small Intestine
c)
Urethra
d)
Ureters
34.
Nutrients from digested food are absorbed in which digestive organ?
a)
Small Intestine
b)
Stomach
c)
Large Intestine
d)
Gallbladder
35.
As waste moves through the digestive system, the ______ absorbs water before storing waste in the rectum.
a)
Small intestine
b)
Stomach
c)
Esophagus
d)
Large intestine
36.
Bile is stored in which secondary digestive organ?
a)
Stomach
b)
Liver
c)
Gallbladder
d)
Pancreas
37.
The area that the substrate fits into on the enzyme is called the:
a)
Active Site
b)
Allosteric Site
c)
DiSulphide Bridge
d)
β-Pleated Sheet
38.
What is the purpose of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
39.
How do enzymes increase the speed of chemical reactions?
a)
reducing the number of products
b)
reducing the activation energy
c)
increasing the temperature of the cell
d)
increasing the concentration of reactants
40.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
41.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
42.
After the enzyme and substrate bind together and perform the reaction, what does the substrate become?
a)
a substrate
b)
an enzyme
c)
a product
d)
an active site
43.
can a change in pH alter the active site of an enzyme
a)
yes
b)
no
44.
The electricity generated from the power plant is
a)
Alternating Current
b)
Direct Current
c)
Delayed Current
d)
Alternating Voltage
45.
Super heated steam is used to turn a ______________?
a)
Transformer
b)
Battery
c)
Turbine
d)
Toothed Gear
46.
What is meant by fossil fuels?
a)
Fuels that are derived from fossils
b)
Fuels that are derived from old people
c)
Fuels that are derived from using plant material
d)
Fuels that are derived from the decomposition of faeces
47.
Most forms of electrical generation rely on a turbine. Which form doesn't?
a)
Tidal
b)
Hydro
c)
Solar
d)
Wind
48.
Biodiesel can be considered ...
a)
Finite
b)
Infinite
c)
Renewable
d)
Recycled
49.
How is electricity measured and billed by the power company?
a)
watts
b)
kilowatts
c)
watt hours
d)
kilowatt hours
50.
which type of renewable energy is currently creating the most electricity generation?
a)
geothermal
b)
hydroelectric
c)
solar
d)
wind
51.
Which of the following are the most energy efficient light bulbs?
a)
incandescent
b)
compact florescent
c)
LED
d)
halogen
52.
if a tractor trailer truck is 20% efficient, what happened to the other 80%
a)
energy is destroyed
b)
energy is lost as heat
c)
the 80% is still in the gas tank
d)
energy is converted into matter
53.
Which is the BEST definition for hydroelectricity
a)
energy from water
b)
electricity from water
c)
electricity generated from moving water
d)
moving water that creates energy
54.
Which of the following is an advantage of nuclear energy?
a)
does not produce solid waste
b)
does not produce air pollution
c)
it is cost effective
d)
can convert uranium into natural gas
55.
Hot coffee is stirred with a spoon; the spoon gets hot due to
a)
conduction
b)
convection
c)
radiation
56.
A chair is several feet from a fireplace. The side of the chair facing the fireplace gets warm due to
a)
conduction
b)
convection
c)
radiation
57.
"Lava lamps" contain colored liquids. These liquids form globs that rise to the top due to
a)
conduction
b)
convection
c)
radiation
58.
Near the ceiling of a room the air is warmer; the warm air rises because of
a)
conduction
b)
convection
c)
radiation
59.
Warm air rises and the cool air sinks demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
d)
Insolation
60.
An insulator . . .
a)
Allows a lot of heat to escape
b)
Makes the temperature of an object rise
c)
Moves heat from one place to another
d)
Traps heat inside an object
61.
A series circuit has ____ path(s) that the electric current can take.
a)
One
b)
Two
c)
Three
d)
Four
62.
In a parallel circuit, if one connection is broken, all of the connections stop working.
a)
True
b)
False
63.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
64.
What kind of circuit is this?
a)
series
b)
parallel
65.
this is the symbol for a _____?
a)
switch
b)
light
c)
battery
d)
wires
66.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
67.
What is a Parallel circuit?
a)
Has only one path
b)
Has more than one path
c)
Allows energy to travel through easily
d)
Has only one light bulb
68.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
69.
This is the symbol for a ...
a)
Bulb
b)
Battery
c)
Horn
d)
Fuse
70.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
71.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
72.
This is the symbol for a...
a)
Light Dependent Resistor
b)
Light Emitting Diode
c)
Thermistor
d)
Cell
73.
This is the symbol for a...
a)
Light Emitting Diode
b)
Fuse
c)
Fixed Resistor
d)
Variable Resistor
74.
This is the symbol for a...
a)
Light Emitting Diode
b)
Light Dependent Resistor
c)
Fuse
d)
Cell
75.
This is the symbol for a...
a)
Fuse
b)
Wire
c)
Light Emitting Diode
d)
Heater
76.
This is the symbol for a...
a)
Thermistor
b)
Fixed Resistor
c)
Variable Resistor
d)
Fuse
77.
What is the chemical symbol for the element hydrogen
a)
H
b)
He
c)
h
d)
he
78.
What is the chemical symbol for the element Carbon
a)
ca
b)
co2
c)
C
d)
Cd
79.
What is the chemical symbol for the element copper?
a)
co
b)
c
c)
Cu
d)
cu
80.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
81.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
82.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
83.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
84.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
85.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
86.
If an atom has 12 protons, which of the following must it also have to be considered a neutral atom?
a)
12 neutrons
b)
12 electrons
c)
12 protons
d)
24 protons and neutrons
87.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)
10
b)
20
c)
30
88.
What is the atomic number of this atom shown in the Bohr model?
a)
11
b)
12
c)
13
d)
can't be determined
89.
What is the mass number of the atom shown in the Bohr model?
a)
11
b)
12
c)
23
d)
Can't be determined
90.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
91.
A compound consists of two or more elements bound together.
a)
True
b)
False
92.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
93.
A chemical change always results in the formation of a:
a)
explosion
b)
big mess
c)
new substance
d)
new state of matter
94.
What is an ore?
a)
a solid metal
b)
a rock cantaining a metal combined with other elements
c)
an element
d)
an object used to row a boat
95.
What is the removal of oxygen from a substance called?
a)
reduction
b)
extraction
c)
electrolysis
d)
oxidation
96.
Which element cannot be extracted from its ore by reduction with carbon?
a)
iron
b)
aluminium
c)
copper
d)
lead
97.
Which series is used to predict the reactions of metals with carbon and other elements?
a)
reactionary series
b)
reaction series
c)
redox series
d)
reactivity series
98.
What is the name of the process that uses electricity to separate the elements in a compound?
a)
reduction
b)
electrolysis
c)
extraction
d)
mining
99.
How would you best extract iron from haematite (iron ore)?
a)
reduction by carbon
b)
electrolysis
c)
decomposition
d)
oxidation
100.
Which gas is produced as a waste product when iron is extracted from its ore in the blast furnace?
a)
Carbon dioxide
b)
Hydrogen
c)
Nitrogen
d)
Oxygen
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