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NAD⁺ is a coenzyme that plays an important role mainly in catabolic processes, while NADP is...
Viruses consist of protein and DNA or RNA, they reprogram infected cells to produce more viruses.
ATP is the main source of energy for cells.
This animation explains active and passive transport processes occurring through cell membranes
Enzymes are protein molecules catalysing biochemical reactions. Their activity can be regulated.
Chlorophyll is a photosensitive green pigment found in plants; it absorbs light energy, thus...
Mitosis is the process by which a eukaryotic cell divides into two cells and the number of...
Bacteria occur in a wide range of shapes, including spheres, rods and spirals.