The Electron Transport Chain The final stage of respiration, forming ATP and H2O The other steps of respiration
Category: GCE A-level Biology
The Chi-Squared Test
The Chi-squared test is a statistical test used to see if the results of an experiment support the
Speciation
Speciation is when a new species forms from an existing species This is due to reproductive isolation which
Genetic engineering basics
Genetic engineering involves the manipulation of naturally occurring processes and enzymes. extraction/syntheses a gene(s) from one organism transfer
Gel Electrophoresis
Gel electrophoresis separation of strands of DNA of different lengths analysis of proteins and DNA place mixture of
Genetic Screening
How genetic screening is carried out in an adult human samples of cells taken e.g white blood cells
Biological molecules and water
Water The molecule consists of one oxygen atom covalently bonded to two hydrogen atoms. the oxygen atom is
Blood vessels
Mammals have a transport mechanism called circulatory system. The circulatory system is composed of the heart and the
Selection
a mechanism in which physically, physiologically, environmentally and generally adapted organisms survive and reproduce organisms best suited in