Download What do enzymes do? What instructs a cell how to make enzymes

What do enzymes do?
What instructs a cell
how to make enzymes?
In relation to enzymes,
what is meant by the
term ‘optimum pH’?
Write the word
equation for
photosynthesis.
Write the symbol
equation for
photosynthesis.
What is the name of
the green chemical
that absorbs light
during photosynthesis?
Name 3 things that
plants use glucose for.
Why do plants need
nitrogen?
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Science Department
Cells make enzymes
Enzymes are proteins that
according to the instructions speed up chemical reactions
carried in genes
carbon dioxide + water → glucose + oxygen
Chlorophyll
To make proteins
The pH at which the
rate of reaction is
highest
6CO2 + 6H2O → C6H12O6 + 6O2
1. converted into chemicals needed
for growth of plant cells, for
example cellulose, protein and
chlorophyll
2. converted into starch for storage
3. used in respiration to release
energy
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Science Department
By what process do
What is the process by
oxygen and carbon
which water moves into
dioxide move in and out
plant roots?
of cells?
Write the word
equation for aerobic
respiration.
Write the symbol
equation for aerobic
respiration.
Give 3 examples of
when anaerobic
respiration may occur.
Write the word
equation for anaerobic
respiration in animals.
Write the word
equation for anaerobic
respiration in yeast.
Define: tissue
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Diffusion
Osmosis
C6H12O6 + 6O2 → 6CO2 + 6H2O
glucose + oxygen → carbon dioxide + water
glucose → lactic acid
Groups of specialised cells
1. plant roots in
waterlogged soil
2. bacteria in puncture
wounds
3. human cells during
vigorous exercise
glucose → ethanol + carbon dioxide
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Science Department
Define: organ
What type of organs
produce hormones?
Give an example of a
hormone.
Define: synapse
Which organs make up
the central nervous
system?
What is the cerebral
cortex responsible for?
What is the name for
a row of elements in
the Periodic Table?
What element has the
symbol Li?
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Science Department
Glands
• insulin
• oestrogen
• testosterone
The cerebral cortex is the
part of our brain most
concerned with
intelligence, memory,
language and consciousness
Period
Groups of tissues form
organs
Gaps between adjacent
neurons that impulses
are transmitted across
Brain and spinal cord
Lithium
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Science Department
What element has the
symbol Na?
What element has the
symbol K?
What is produced when
an alkali metal reacts
with water?
What element has the
symbol Cl?
What element has the
symbol Br?
What element has the
symbol I?
What state is Bromine
at room temperature
and pressure?
What state is Chlorine
at room temperature
and pressure?
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Science Department
Potassium
Sodium
Chlorine
Hydrogen and an alkaline
solution of a hydroxide
with the formula
metalOH
Iodine
Bromine
Gas
Liquid
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Science Department
What state is Iodine
at room temperature
and pressure?
What type of bonding
is found in a compound
of a Group 1 metal and
a halogen?
What element are
graphite and diamond
made from?
What are the most
abundant elements in
the Earth’s crust?
Write the chemical
formula for chlorine
gas.
Write the chemical
formula for hydrogen
gas.
Write the chemical
formula for nitrogen
gas.
Write the chemical
formula for oxygen
gas.
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Science Department
Ionic
Solid
Silicon, oxygen and
aluminium
Carbon
Cl2
H2
N2
O2
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Science Department
Write the chemical
formula for
hydrochloric acid.
Write the chemical
formula for nitric acid.
Write the chemical
formula for sulphuric
acid.
Write the chemical
formula for sodium
hydroxide.
Write the chemical
formula for sodium
chloride.
Write the chemical
formula for sodium
carbonate.
Write the chemical
formula for sodium
nitrate.
Write the chemical
formula for sodium
sulphate.
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Science Department
HNO3
HCl
NaOH
H2SO4
Na2CO3
NaCl
Na2SO4
NaNO3
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Science Department
Write the chemical
formula for
potassium chloride.
Write the chemical
formula for magnesium
oxide.
Write the chemical
formula for magnesium
hydroxide.
Write the chemical
formula for magnesium
carbonate.
Write the chemical
formula for magnesium
chloride.
Write the chemical
formula for magnesium
sulphate.
Write the chemical
formula for calcium
carbonate.
Write the chemical
formula for calcium
chloride.
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Science Department
MgO
KCl
MgCO3
Mg(OH)2
MgSO4
MgCl2
CaCl2
CaCO3
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Science Department
Write the chemical
formula for calcium
sulphate.
Define: neutralisation
What is produced when What is produced when
an acid reacts with a
an acid reacts with a
metal?
metal oxide?
What is produced when What is produced when
an acid reacts with a
an acid reacts with a
metal hydroxide?
metal carbonate?
What is the difference
between speed and
velocity?
Define: kinetic energy
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Science Department
The reaction of an acid
with an alkali to form a
salt
CaSO4
Salt + water
Salt + hydrogen
Salt + carbon dioxide +
water
Salt + water
The energy of a moving The velocity of an object is
its speed together with an
object
indication of the direction
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Science Department
Define: gravitational
potential energy
Define: electric
current
What unit is current
measured in?
What is the
relationship between
voltage and current?
What is the
relationship between
current and resistance?
What is electrical
power a measure of?
Why do resistors heat
up when a current
flows through them?
What is another term
for voltage?
Bicester Community College
Science Department
Electric current is a
flow of charge
When an object is above the
Earth's surface it has
gravitational potential energy
(GPE). The amount of GPE an
object has depends on its mass
and its height above the Earth's
surface.
The larger the voltage
of the battery in a given
circuit, the bigger the
current
Amps (A)
Power (in watts, W) is a
measure of the rate at which
an electrical power supply
transfers energy to an
appliance or device and/or its
surroundings
The larger the
resistance in a given
circuit, the smaller the
current will be
Potential difference
This heating effect is
caused by collisions
between the moving
charges and ions in the
wire
Bicester Community College
Science Department
What does a
transformer do?
Is mains electricity
a.c. or d.c.?
Name 3 types of
radiation.
What does an alpha
particle consist of?
What is a beta
particle?
Give 3 uses of
radiation.
What is measured in
sieverts?
For the same mass of
raw materials, which
releases more energy:
a chemical reaction or
nuclear fission?
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Science Department
a.c.
• Alpha
• Beta
• Gamma
A transformer can
change the size of an
alternating voltage
Alpha particles consist
of two protons and two
neutrons
1. to treat cancer
2. to sterilise surgical
instruments
3. to sterilise food
4. as a tracer in the body
Beta particles are
identical to electrons
Nuclear Fission
Radiation dose
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Science Department
What are stem cells?
What are the products
of mitosis?
If a fertilised egg cell
(zygote) divides by
mitosis, what is
produced?
What does meiosis
produce?
In DNA, which base
does A always pair
with?
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Science Department
An embryo
Unspecialised cells
Gametes
Two genetically identical
cells
T
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Bicester Community College
Science Department
Bicester Community College
Science Department