AQA A-Level - Biology

AQA | A-Level | Biology

Biological molecules

Monomers and polymers

Carbohydrates

Lipids

Proteins

Nucleic acids are important information-carrying molecules

Water

Inorganic ions

AQA | A-Level | Biology

Cells

Cell structure

All cells arise from other cells

Transport across cell membranes

Cell recognition and the immune system

AQA | A-Level | Biology

Organisms exchange substances with their environment

Surface area to volume ratio

Gas exchange

Digestion and absorption

Mass transport

AQA | A-Level | Biology

Genetic information, variation and relationships 
between organisms

DNA, genes and chromosomes


DNA and protein synthesis


Genetic diversity can arise as a result of mutation or during meiosis

Genetic diversity and adaptation

Species and taxonomy

Biodiversity within a community

Investigating diversity

AQA | A-Level | Biology

Energy transfers in and between organisms (A-level only)

Photosynthesis (A-level only)

Respiration (A-level only)

Energy and ecosystems (A-level only)

Nutrient cycles (A-level only)

AQA | A-Level | Biology

Organisms respond to changes in their internal and 
external environments (A-level only)

Stimuli, both internal and external, are detected and lead to a 
response (A-level only)

Nervous coordination (A-level only)


Skeletal muscles are stimulated to contract by nerves and act as 
effectors (A-level only)

Homeostasis is the maintenance of a stable internal environment 
(A-level only)

AQA | A-Level | Biology

Genetics, populations, evolution and ecosystems (A-level only)

Inheritance (A-level only)

Populations (A-level only)

Evolution may lead to speciation (A-level only)

Populations in ecosystems (A-level only)

AQA | A-Level | Biology

The control of gene expression (A-level only)

Alteration of the sequence of bases in DNA can alter the structure of proteins (A-level only)

Gene expression is controlled by a number of features (A-level only)

Using genome projects (A-level only)

Gene technologies allow the study and alteration of gene function 
allowing a better understanding of organism function and the design of new industrial and medical processes (A-level only)