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Oxidative phosphorylation and the electron transport chain (ETC) are both aerobic processes that require oxygen. These processes occur in the mitochondria of cells across the inner mitoch...

To answer this two-part question students must be able to understand two concepts: what a gene can do; and what constitutes a gene.

For the first part, a mutation in the genetic code of the tumour ...

So if we start off by looking at the structure of a typical phospholipid inside a cell membrane, we can see that it is made up of two components: a hydrophilic phosphate head, which means it is 'water lov...

• Structure formed after multiple cell divisions of zygote. • Inner cell mass (ICM) - forms the embryo. • The outer layer - trophoblast. This layer surrounds the inner cell mass and a fluid-filled cavity ...

• Ovulation stimulated by hormones at spec dose to cause follicles to develop simultaneously• Oocytes collected from female using tube inserted through vagina into oviducts - ultrasound used; semen collec...