Chemical Reactions Flashcards

1
Q

What are the 5 common biochemical reactions?

A
1- making and breaking carbon bonds
2- molecular re-arrangements
3- free radical rxns
4- group transfers
5- red/oxi rxns (redox)
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2
Q

What is a condensation rxn?

A

Two molecules joining to create larger molecules

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3
Q

What is a carboxylation/decarboxylation rxn?

A

Addition or removal of a carboxyl group

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4
Q

What is a free radical?

A

A molecule with an unpaired electron

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5
Q

How do antioxidants deal with free radicals?

A

Give up a proton and undergo conformational changes to stabilize

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6
Q

What is a common example of a group transfer rxn?

A

Phosphorylation

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7
Q

What are REDOX rxns?

A

Pair of rxns that move electrons to perform work

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8
Q

What are the four ways to transfer electrons?

A

1- direct electron transfer (reduction)
2- hydrogen atom transfer (reduction)
3- hydride ions (reduction)
4- combination with oxygen (oxidation)

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9
Q

Which direction does a reaction move towards with a positive or negative change in free energy?

A

Positive- moves toward reactants (anabolism)

Negative- moves toward products (catabolism)

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