Viruses

Viruses consist of protein and DNA or RNA, they reprogram infected cells to produce more viruses.

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Transport processes

This animation explains active and passive transport processes occurring through cell...

Bacteria (spheres, rods, spirals)

Bacteria occur in a wide range of shapes, including spheres, rods and spirals.

Enzymes

Enzymes are protein molecules catalysing biochemical reactions. Their activity can be...

Animal and plant cells, cellular organelles

Eukaryotic cells contain a number of organelles.

ADP, ATP

ATP is the main source of energy for cells.

Genome editing

Genome editing is a type of genetical engineering which results in changes in the genome...

Meiosis

Our gametes are haploid cells produced from diploid cells by meiosis, a special type of...

Bacteria (advanced)

Bacteria are unicellular organisms that have no nuclei and are a few micrometres in length

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