Zach's+Page

=__ENZYME QUESTIONS!__=

1) respiration and mitosis. 2) enzymes are referred to as 'biological catalysts' because they speed up chemical reactions and use less energy as shown in the below graph.

3a) Enzymes are biological catalysts made of proteins, they speed up chemical reactions in the body eg. the break down of food in the stomach by the enzyme //pepsin//. b) Proteins c) the enzyme is the 'worker' and the substrate is the molecule being broken down. every enzyme has a different active site and therefore will only break down substrates that have a similar shape to that of the enzymes substrate. d) the amount of chemical reactions you have 'going off' in your body determines your rate of metabolism eg. not alot of chemical reactions=low metabolism.

4) each enzyme has a different job and will only work on certain substrates. in order for an enzyme to work efficiently it needs to be able to connect to the substrate and for this to happen the active site must fit to the substrate.

5) where the hell is figure 2.2? wtf?

6) because they are unaffected by the reaction.

7a) activation energy is the energy required to start a chemical reaction. b) less activation energy is required. (see the awesome graph above!)

8a) 'enzyme affinity' how much an enzyme wants to cling to a substrate. (kinda like //electro negativity!//) b)an enzymes affinity can be altered by denaturing, if the enzyme is heated to a certain temperature it will no longer work efficiently. c)explained above.

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