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Melting point decreases going from lithium to sodium because sodium is lower down group one therefore it has a greater number of shells. A greater number of shells means a greater atomic radius - a greate...

Adenine, Guanine, Cytosine, Thymine.A binds to T. “A tea for 2” as there are two hydrogen bonds linking adenine on one DNA strand to thymine on another DNA strandc binds to G. 3 hydrogen bonds between the...

Cofactors and coenzymes bind to an enzyme's allosteric site. This causes interactions between hydrogen bonds in the tertiary structure of the protein to change- altering its structure.The change of struct...

For a question that starts with discuss you would need to answer with at least three points, four if you have time. You would need to make sure your answer is balanced, therefore giving two strengths of t...

Whilst most students will refer to Kachru's 'Circles' model. Another useful theorist to remember is Schneider, who proposed the dynamic model. Schneider studied how English becomes established around the ...