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Daniel's MCAT Flashcards > Chemistry > Flashcards

Chemistry Flashcards

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MCAT flashcards
1
Q

Is NaBH4 or LiAlH4 a stronger reducing agent?

A

LiAlH4

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2
Q

What is the structure of guanine?

A
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3
Q

What is the structure of adenine?

A
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4
Q

What is the structure of cytosine?

A
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5
Q

What is the structure of thymine?

A
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6
Q
A

Arginine

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7
Q
A

Histidine

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8
Q
A

Lysine

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9
Q
A

aspartic acid

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10
Q
A

aspartic acid (asp)

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11
Q
A

Glutamic acid (GLU)

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12
Q
A

Serine

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13
Q
A

Threonine

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14
Q
A

Asparagine (asn)

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15
Q
A

Glutamine (Gin)

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16
Q

What type of geometry corresponds with dsp3 hybridization?

A

trigonal bipyramidal

17
Q

What type of geometry corresponds with d2sp3 hybridization?

A

octahedral

18
Q

What type of geometry corresponds with dsp2 hybridization?

A

square planar

19
Q

What type of geometry corresponds with sp3 hybridization?

A

tetrahedral

20
Q

How many equivalents of a strong base (NaOH) are needed to neutralize a an acid?

A

One equivalent per acidic proton (2 for H2SO4)

21
Q

If pH > pKa, will the the equilibrium shift towards protonated species or deprotonated species?

A

Deprotonated because if there is a lot of acid(protonated species) then the equilibrium will shift towards the deprotonated species

22
Q

What is the henderson-hasselbalch equation?

A

pH = pKa + log (conj. Base/ conj. acid)

23
Q

What is the dissociation equilibrium constant Keq equal to when given Ka?

A

1/Ka

24
Q

What are the Purines?

A

Adenine and Guanine

25
Q

What are the pyrimidines?

A

Thymine and Cytosine

26
Q

Which sequence properly indicates the order of transmission for the impulses that result from transcranial magnetic stimulation?

A

Cerebral cortex, spinal cord, efferent neurons, skeletal muscle cells

27
Q

what is a positive control?

A

a control group that is not exposed to the experimental treatment but that is exposed to some other treatment that is known to produce the expected effect.

28
Q

what is a negative control?

A

A negative control group is a control group that is not exposed to the experimental treatment or to any other treatment that is expected to have an effect.

29
Q

How are nM and uM related?

A

1 nM to 0.001 uM

30
Q

How are uM and mM related?

A

1 uM to 0.001 mM

31
Q

The half-life of a radioactive material is:

A

the time it takes for half of all the radioactive nuclei to decay into their daughter nuclei.

32
Q

Where does the P come from in ATP when it is transferred via a kinase?

A

the gamma phosphate

33
Q

Which nucleotide bases create stronger interactions in DNA?

A

C-G

They have greater pi stacking

34
Q

How are phospholipids strucutred?

A

Three fatty acids ester-linked to a single glycerol

35
Q

How do oxidation and reduction occur in a cell?

A

oxidation at the anode and reduction at the cathode

36
Q

What is the Ksp equation?

A
37
Q

How many electrons can occupy an energy level with quantum number n?

A

2n^2

38
Q

How many electrons can occupy a subshell w quantum number l?

A

2l^2 + 2

Daniel's MCAT Flashcards (7 decks)

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