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Biochem Final > Previous exam topics > Flashcards

Previous exam topics Flashcards

1
Q

what is an acid?

A

proton donator
(its dissociation makes conj base)

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2
Q

what is a base?

A

proton acceptor
(its dissociation makes a conj acid)

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3
Q

weak acids and bases exist in:

A

equilibrium with conj species

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4
Q

what is an example of a weak acid and base?

A

acid: carboxylic acid
base: amine

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5
Q

what is the most imp physiological buffer

A

bicarbonate

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5
Q

what bonds are in 2,3,4 protein structure?

A

hydrogen bonds and non covalent bonds

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5
Q

when do buffers work best?

A

at pKa

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6
Q

what is secondary amino acid structure?

A

a- helix and b-sheets

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7
Q

what holds primary protein structure together?

A

covalent bonds

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7
Q

what is an oncones?

A

mutation at one amino acid

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8
Q

what happens in M phase

A

mitosis

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8
Q

amino acids determine?

A

protein folding

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8
Q

what occurs during G1

A

interphase, increases in size, and is active biochemically
(technically G1, S and G2 are interphase)

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8
Q

what are key features of 2nd messagner systems?

A

specificity
amplification
augmentation
rapid signal transduction

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9
Q

the goblins have what structure?

A

no beta structure, a helix connected by turns

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10
Q

what occurs with sickle cell disease?

A

gu becomes val
makes hydrophobic

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10
Q

most cells are in the ______ stage of cell cycle

A

G0

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11
Q

what happens during s phase?

A

cell copies DNA makes sister chromatids

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11
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12
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12
Q

what happens during G2 phase

A

cell prepares for mitosis by growing and syn new proteins and lipids

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12
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Biochem Final (6 decks)

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