A Level Biology Monomers and polymers

A level biology – Monosaccharides, disaccharides and polysaccharides

A level biology α-glucose and β–glucose and their polymers, glycogen, starch and cellulose

A Level biology – Tests for reducing sugars, non-reducing sugars and starch.

A Level biology Lipids

A Level Biology Triglycerides and phospholipids

Properties of proteins

Amino acids, dipeptides and polypeptides

A Level biology – Biuret test for proteins

A Level biology – Enzyme action

A Level biology – Enzyme inhibition

The rate of enzyme catalyzed reactions

A Level biology – DNA and RNA

The Meselson–Stahl experiment

DNA replication

A Level Biology – Adenosine triphosphate – ATP

Water

A Level biology – Inorganic ions

A Level biology – Structure of eukaryotic cells

Structure of prokaryotic cells

A Level biology – Adaptations of eukaryotic cells

Structure of viruses

A Level biology – Optical microscopes

A Level biology – Electron microscopes

A Level biology – Magnification calculations

A Level Biology – Separating components

The cell cycle

A Level biology – Mitosis

A Level Biology – Cancer

A Level biology – Binary fission in prokaryotic cells

Virus replication

The fluid mosaic model of cell membranes

A Level biology – Osmosis

Active transport

Sample spaces – Easy

Sample spaces – Medium

Sample spaces – Hard

Frequency tables – Easy

Frequency tables – Medium

Frequency tables – Hard

Exponential growth – Easy

Exponential growth – Medium

Exponential growth – Hard

Expanding three brackets – Easy

Expanding three brackets – Medium

Expanding three brackets – Hard

Algebraic fractions – Easy

Algebraic fractions – Medium

Algebraic fractions – Hard

Finance – Easy

Finance – Medium

Finance – Hard

Tessellations – Easy

Tessellations – Medium

Tessellations – Hard

Converting units – Easy

Converting units – Medium

Converting units – Hard

Hypothesis testing – Easy

Hypothesis testing – Medium

Hypothesis testing – Hard

Squares, cubes, powers & square roots – Easy

Squares, cubes, powers & square roots – Medium

Squares, cubes, powers & square roots – Hard

Simplifying algebra – Easy

Simplifying algebra – Medium

Units – Easy

Units – Medium

Units – Hard

Aerobic Respiration – Oxidative Phosphorylation

Aerobic respiration – The Krebs cycle

Anaerobic respiration

Chi-squared test and phenotypic ratios

Codominant alleles

Dominant and recessive alleles

Food chains and food webs

Movement against concentration gradients by co-transport.xls

Required Practical 1 – Investigation into the effect of a named variable on the rate of an enzyme-controlled reaction.

White blood cells and the immune system

Phagocytosis

T lymphocytes

A Level Biology – Antibodies

B lymphocytes

Vaccines and immunity

HIV and AIDS

Antigen variability

Monoclonal antibodies

Surface area to volume ratio and size

Gas Exchange in Dicotyledonous Plants

Gas Exchange in Fish Gills

A Level Biology – Digestion

A Level Biology – Absorption of digestive products

Circulation of blood

A level biology – Human Heart

A Level Biology – Haemoglobin in humans

A Level Biology – Vessels

Cardiovascular disease

A Level Biology – Xylem

A Level Biology – Phloem

A Level Biology – DNA within cells

Transcription and mRNA

A Level Biology – Stabilizing, directional and disruptive selection

Natural selection

Classification and taxonomy

Discovering evolutionary relationships