Viruses

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

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Enzymes

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

Animal and plant cells, cellular organelles

Eukaryotic cells contain a number of organelles.

Meiosis

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

Bacteria (spheres, rods, spirals)

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

NAD⁺, NADP⁺, NADPH

NAD⁺ is a coenzyme that plays an important role mainly in catabolic processes, while NADP is...

Genome editing

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

Mitosis

Mitosis is the process by which a eukaryotic cell divides into two cells and the number of...

ADP, ATP

ATP is the main source of energy for cells.

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