Science
Key Stage 5 Year 12
AS Biology
Assessment Unit BY1: Basic biochemistry and cell structure (Common Unit)
This unit incorporates the biochemistry and structure which is fundamental to the
functioning of living organisms: structure and function of biological compounds and
enzymes; basic cell structure and organisation; cell division; cell membranes;
membrane transport.
Assessment Unit BY2: Biodiversity and Physiology of Body Systems (Biology)
This unit is intended as an overview of a variety of organisms with the emphasis on the
comparative adaptations.
Assessment Unit BY3: Practical work (Common Unit)
Details given under scheme of assessment. Content based on BY1 and BY2
AS Chemistry
Unit 1
The Language of chemistry, structure of matter and simple reactions.
Written examination: 1hr 30 minutes
20% of qualification
This unit covers:
1.Formulae and equations
2.Basic ideas about atoms
3.Chemical calculations
4.Bonding
5.Solid structures
6.The periodic table
7.Simple equilibria and acid base reactions
Unit 2
Energy, rate and chemistry of carbon compounds.
Written examination: 1 hour 30 minutes
20% of qualification
This unit covers:
1.Thermochemistry
2.Rates of reaction
3.The wider impact of chemistry
4.Organic compounds
5.Hydrocarbons
6.Halogenoalkanes
7.Alcohols and carboxylic acids
8.Instrumental analysis
Key Stage 5 Year 13
A2 Biology
Assessment Unit BY4: Metabolism, Microbiology and Homeostasis (Biology)
Unit BY4 involves the study of energy supply in living organisms along with
microbiology and populations; homeostasis and nervous system plus a brief overview of
some adaptations and non mammalian systems.
Assessment Unit BY5: Environment, Genetics and Evolution
(Common Unit )
Unit BY5 involves the study of variation and evolution plus genetics and applications;
ecosystems and energy flow along with human effects on the environment.
Assessment Unit BY6: Practical work (Common Unit)
Details given under scheme of assessment. Content based on BY4 and BY5 but
microscope work could be taken from any unit.
Calibration of microscope using a stage micrometer and eye piece graticule. Use of the
units mm and m. Measurement using microscope. Calculation of the magnification of
drawings.
A2 Chemistry
Unit 3
Physical and Inorganic Chemistry
Written examination: 1 hour 45 minutes
25% of qualification
This unit covers:
1.Redox and standard electrode potentials
2.Redox reactions
3.Chemistry of the p-block
4.Chemistry of the d-block
5.Chemical kinetics
6.Enthalpy changes for solids and solutions
7.Entropy and feasibility of reactions
8.Equilibrium constants
9.Acid-bas equilibria
Unit 4
Organic chemistry and analysis
Written examination: 1 hour 45 minutes
25% of qualification
This unit covers:
1.Stereoisomerism
2.Aromaticity
3.Alcohols and phenols
4.Aldehydes and ketones
5.Carboxylic acids and their derivatives
6.Amines
7.Amino acids, peptides and proteins
8.Organic synthesis and analysis
Unit 5
Practical examination
10% of qualification