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AQA GCSE Science Revision- Seperate? - Coggle Diagram
AQA GCSE Science Revision- Seperate?
B1- cell biology
microscopes
plant and animal cells
specialised cells
mitosis
A type of cell division which produces two genetically identical daughter cells from one parent cell.
stem cells
osmosis and diffusion
the net movement of
particles from and area of high
concentration to an area of low _ concentration (through a semi permeable membrane) passively
leaf cells
stomate - open close to let air in
xylem
phloem
P1 - energy
Specific heat capacity
Thermal insulation
Energy Stores
Thermal Elastic Nuclear GPE Electrostatic Chemical Kinetic Magnetic TENGECKM (thanks barclay!!!!)
Chemical
Thermal
Gravitational Potential
Energy transfers
Elastic
Energy transfers
P2 - electricity
Series
A series circuit comprises a path along which the whole current flows through each component.
Recognising symbols
LED, Blub, Voltmeter, Ammeter, Cell, Battery, Switch, Fuse, and Resistor
Paralel
A parallel circuit comprises branches so that the current divides and only part of it flows through any branch.
Longer wire, bigger resistance
All electricity linking equations
Potential Difference
The difference in potential between two points that represents the work involved or the energy released in the transfer of a unit quantity of electricity from one point to the other. (V)
Resistance
Resistance is a measure of the opposition to current flow in an electrical circuit. (Ω)
C1 - atoms
whats in an atom
electron stucture diagrams
protons, neutrons, electrons
how many of each
Isotopes
Discovery of the atom
Mendeleev and about him
distillation
chromatography
balancing equations
periodic table
B2 - orginisation
Enzymes
Ph they work at
lock and key
Enzymes digest the starch
Enzymes in the saliva break down the food
Enzymes digest proteins with chemicals from the stomach
The food spends time in the stomach, churning
Then onto the small intestine and from the liver comes the bile and the pancreas
Bile neutralises the acid produced from the stomach
Food is absorbed into the bloodstream by diffusion or active transport
At higher temperatures, the special shape of the protein enzymes are permanently changed. The enzymes become denatured. The reactants will no longer fit the active site.
Enzymes optimum temperature is the best temperature it functions as. It is 37 degrees in humans.
Lock and key model - the substrate attaches to the active site, enzyme catalyses the breakdown of the substrate (speeds up the breakdown), products from the active site. Pieces have to be a perfect fit.
The active site changes shape. Active sites cannot revert.
Carbohydrase
Produced in salivary glands, pancreas and small intestine
Breaks down carbohydrates into simple sugars
Amylase is a carbohydrate that breaks down starch
Protease
Produced in the stomach, pancreas and small intestine
Protease breaks down proteins into amino acids
Lipase
Produced in the pancreas and small intestine
Lipase breaks down lipids (fats) to glycerol and fatty acids
digestive systems
Mouth - break down food, produces saliva
Oesophagus - contracts to push food down
Stomach - releases hydrochloric acid, churns
Small intestine - minerals absorbed into bloodstream
Large intestine - makes faeces, absorbs water
Liver - produces bile
Gallbladder - stores bile
Anus - releases faeces
food tests
buirets - protein (purple)- protiens
starch - iodine
ethanol
(benedicts?) beniticts - glucose (orange
https://www.bbc.co.uk/bitesize/guides/zwbqcj6/revision/5
transpiration
translocation
https://coggle.it/diagram/YfklgRxtnuRhz2GC/t/b2-recap?utm_source=transaction&utm_medium=email&utm_campaign=retain?utm_source=transaction&utm_medium=email&utm_campaign=retain
in the body
Vitamins+mineral = helps our body to keep working
Fibre = Help our digestive system
Fats = a source of energy
Calcium = strong bones and teeth
Protein = helps to build and repair cells
The journey of the blood around the body:
Blood is pumped around the body of a vertebrate by the heart. Blood is pumped away from the heart in arteries and is returned to the heart in veins. The right side pumps deoxygenated blood to the lungs and the left side pumps oxygenated blood to the rest of the body tissues. The vena cava and pulmonary vein carry blood into the heart. Blood is carried away from the heart in the pulmonary artery and the aorta when the ventricles contract.
Blood
Arteries
carries blood away from the heart
thick walls
small lumen
high pressure (carry blood)
Veins
carry blood to the heart
thin walls
large lumen
carry blood in low pressure
have valves
Capillaries
One cell thick walls
carry blood at very low pressure
connect arteries and veins
Veins - take oxygens back to the heart
Arteries - carry blood away from the heart
Capillaries - connect arteries and veins
C2 - structure and bonding
states of matter
solid to liquid to gas
Ionic
ionic bonding - a strong electrostatic attraction between oppositely charged ions that holds ions in an ionic compound together
changing of state: melting, freezing, boiling, condensation, sublimation
Covalent
A covalent bond is a shared pair of electrons
Compound
Metallic - a bond between two metals
equations
Ep = M x G x H
e = gravitantiol potential energy in joules
m = mass in kg
g = gravitational field strength in n/kg
h = height in metres
Ek = ½ x M x V2
ek = kinetic energy in joules
m = mass in kg
v = velocoty/ speed in meters/second
Ee = ½ x K x E2
ee = elastic potential energy in joules
k = spring constant newton/meters
e = extension in meters
Change in energy (j)= mass(kg) x specific heat capacity(j/kg^c) x temp change (^c)
Power (w) = work(j) / time (s)
Power (watts) = Current(amphs) x Potential Difference (volts)
Energy efficiency (%) = useful energy output(j) / total energy input(j) x 100
Charge flow (c) = current (a) x time (s)
Resistance (ohms) = Voltage (v) / current (a)
Energy = power x time
e = joules
p = watts
t = seconds
Energy = charge flow x potential difference
Charge = current x time
Power = potential difference x current
Power = current 2 x resistance
Density = mass / volume
Change in thermal energy = mass x specific latent heat
Energy transferred = mass x shc x temp change
Pressure x Volume = constant
REVISION METHODS
free science lessons
https://www.physicsandmathstutor.com/physics-revision/
Flash cards
Exam questions
Pixl
Revision guides
Group study
Use your book
AQA
https://quizlet.com/_bgmwmd?x=1jqt&i=2r3opn
B2
bourne key words
https://www.bourne.org.uk/wp-content/uploads/Physics-GCSE-Keywords.pdf
https://www.bourne.org.uk/wp-content/uploads/Chemistry-GCSE-Key-Words.pdf
https://www.bourne.org.uk/wp-content/uploads/Biology-GCSE-Key-Words.pdf
https://quizlet.com/_bh636e?x=1qqt&i=2r3opn
B1
https://quizlet.com/_bheo6p?x=1qqt&i=2r3opn
C1
https://quizlet.com/_bhep1p?x=1qqt&i=2r3opn
C2
https://quizlet.com/_bhepqj?x=1qqt&i=2r3opn
P1
https://quizlet.com/_bheq8j?x=1qqt&i=2r3opn
P2
https://quizlet.com/_bitapf?x=1jqt&i=2d94xs
bbc bitesize
https://cognitoedu.org/dashboard
my equations
required practical notes
MOCK TIMES!
Biology - Tuesday 24th January 8:45 - 10:30
Chemistry - Thursday 26th January 8:45 - 10:30
Physics - Tues 31st January 8:45 - 10:30
C4 -