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What is the phospholipid bilayer?

The phospholipid bilayer is part of the Fluid Mosaic model forming part of the structure of the cell membrane. It plays a role in regulating the movement of substances across the cell membrane and makes up t...
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Answered by Anna C. • Biology tutor
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Describe two ways in which genetic diversity is achieved during meiosis?

During prophase 1, chromosomal crossing over takes place, in which genetic information is exchanged between chromatids of each homologous pair of chromosomes in their bivalents- the point of crossing over is...
Answered by • Biology tutor
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Name and draw the type of bond that joins amino acids together.

Peptide bond - CO - NH -
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Answered by Isobel M. • Biology tutor
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What is mitosis?

Mitosis is a form of cell division.Mitosis is used to create 2 new cells, genetically identical to each other and to the 'parent' cell. These cells are for things like growthIn mitosis the 'parent' cell has ...
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Answered by Florence W. • Biology tutor
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How do enzymes work?

Enzymes are biological catalysts. Like all catalysts they reduce the activation energy required for a reaction to take place without themselves being changed. A reaction is the conversion of a substrate to a...
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Answered by Marina A. • Biology tutor
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