Viruses

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

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ADP, ATP

ATP is the main source of energy for cells.

Mitosis

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

Animal and plant cells, cellular organelles

Eukaryotic cells contain a number of organelles.

NAD⁺, NADP⁺, NADPH

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

Transport processes

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

Chlorophyll

Chlorophyll is a photosensitive green pigment found in plants; it absorbs light energy,...

Bacteria (spheres, rods, spirals)

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

Meiosis

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

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