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Biochemistry Lecture and Laboratory > Additional > Flashcards

Additional Flashcards

1
Q

Differentiate reversible denaturation vs irreversible denaturation

A

Reversible - protein unfolding lang pwede pa maibalik kaya reversible
Irreversible - hydrolysis of peptide bonds

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2
Q

Differentiate reversible denaturation vs irreversible denaturation

A

Reversible - protein unfolding lang pwede pa maibalik kaya reversible
Irreversible - hydrolysis of peptide bonds

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3
Q

Levels of protein affeted in

Heavy metal Poisoning?
Digestion of Foods?
Hair perming?
Proteins Ip?

A

Heavy metal poisoning (tertiary, irreversible)

Digestion of Food
(Primary, irreversible)

Hair Perming
(tertiary, reversible)

Protein’s Ip (reversible)

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4
Q

T or F

egg is antidote for heavy metal poisoning

A

T

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5
Q

T of F

to know the number of amino acid in a chain count the amino acid not the peptide bonds

A

T

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6
Q

Bohr effect is in the structure of

A

Quaternary Structure

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7
Q

Deoxygenated Hb

A

increase in H+, CO2 evetually exhaled in the lungs

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8
Q

Oxygenated Hb

A

decrease in H+ to actively metabolizing tissue

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9
Q

T or F
High BPG in maternal Hb, Less affinity for o2,

ensures fetus with O2

A

T

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10
Q

hemoglobin’s affinity for O2?

A

Bohr Effect

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11
Q

which exhibits the bohr effect? hemoglobin or myoglobin?

A

Hemoglobin- is an allosteric protein exhibiting POSITIVE COOPERATIVITY

Myoglobin- single strand (non allosteric)

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12
Q

in hair follicles, what causes the curve in linear keratin?

A

covalent s-s bonds

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13
Q

breaking S-S to produce S-H ?

A

THIOL- (reduction) reducing agent

Hydrogenation Reaction

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14
Q

converting -SH to S-S?

A

(Oxidation H2O2) Oxidizing agent

Dehydrogenation Reagent

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15
Q

for O2 to bind with heme? it needs?

A

Fe+2

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16
Q

T or F

Basic AA forms a coordination complex with iron (II)

A

T

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17
Q

Covalent Forces?

A

Disulfide bonds or S-S bonds

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18
Q

Non Covalent Forces?

A

London, Van der Waals, pi-pi complex, salt bridge

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19
Q

aka proteinaceous particles in CNS

A

Prions

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20
Q

Structure affected by abberant prions?

A

Secondary, shift to alpha and beta sheets

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21
Q

T or F

Bovine Spongiform encephalopathy affects the CNS

A

T

symptoms: dementia, personality disorders, seizures, paralysis

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22
Q

H-bond are formed?

A

Intermolecullar

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23
Q

Secondary structure that runs ANTI Parallel

A

Beta Sheets

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24
Q

Amino acids are mostly found extending above or below the plane?

A

Aromatic AA

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25
how many polypeptide strands are there in collagen?
3 glycine is inside proline is outside- because its helix breaker
26
why proline is helix breaker?
no amino group | imino group lang nasa R side chain pa
27
level of protein structure affected by sickle disease?
primary | Glutamic Acid is replaced by Valine
28
symptoms of sickle cell disease?
clogged vessels, organ damage, hemolysis of RBC
29
T or F | zero is the least soluble
T
30
most soluble
weak acid/base and its conjugate pair
31
Net Charge at LOW pH
Positive (+)
32
Net Charge at High pH
Negative (-)
33
PI isoelectric point ph level?
6 - insoluble or precipitates
34
T or F | zwitterion is insoluble
T kasi 0 charge ang zwitterion
35
At low ph ano ang nababawasan? carboxylic or amino group?
Carboxylic group
36
at high pH ano ang nababawasan carboxylic or amino group?
Amino group
37
special amino acids
cysteine, histidine, tyrosine
38
pH
Protonation
39
pH>pka
Deprotonation
40
reaction for acid base solution?
Neutralization
41
breaking down of a compound
Hydrolysis
42
in presence of excess base? favors forward or backward reaction?
Forward ---->
43
in presence of excess acid? favors backward or forward reaction?
44
Levels of protein affeted in Heavy metal Poisoning? Digestion of Foods? Hair perming? Proteins Ip?
Heavy metal poisoning (tertiary, irreversible) Digestion of Food (Primary, irreversible) Hair Perming (tertiary, reversible) Protein's Ip (reversible)
45
T or F | egg is antidote for heavy metal poisoning
T
46
T of F | to know the number of amino acid in a chain count the amino acid not the peptide bonds
T
47
Bohr effect is in the structure of
Quaternary Structure
48
Deoxygenated Hb
increase in H+, CO2 evetually exhaled in the lungs
49
Oxygenated Hb
decrease in H+ to actively metabolizing tissue
50
T or F High BPG in maternal Hb, Less affinity for o2, ensures fetus with O2
T
51
hemoglobin's affinity for O2?
Bohr Effect
52
which exhibits the bohr effect? hemoglobin or myoglobin?
Hemoglobin- is an allosteric protein exhibiting POSITIVE COOPERATIVITY Myoglobin- single strand (non allosteric)
53
in hair follicles, what causes the curve in linear keratin?
covalent s-s bonds
54
breaking S-S to produce S-H ?
THIOL- (reduction) reducing agent Hydrogenation Reaction
55
converting -SH to S-S?
(Oxidation H2O2) Oxidizing agent Dehydrogenation Reagent
56
for O2 to bind with heme? it needs?
Fe+2
57
T or F | Basic AA forms a coordination complex with iron (II)
T
58
Covalent Forces?
Disulfide bonds or S-S bonds
59
Non Covalent Forces?
London, Van der Waals, pi-pi complex, salt bridge
60
aka proteinaceous particles in CNS
Prions
61
Structure affected by abberant prions?
Secondary, shift to alpha and beta sheets
62
T or F | Bovine Spongiform encephalopathy affects the CNS
T symptoms: dementia, personality disorders, seizures, paralysis
63
H-bond are formed?
Intermolecullar
64
Secondary structure that runs ANTI Parallel
Beta Sheets
65
Amino acids are mostly found extending above or below the plane?
Aromatic AA
66
how many polypeptide strands are there in collagen?
3 glycine is inside proline is outside- because its helix breaker
67
why proline is helix breaker?
no amino group | imino group lang nasa R side chain pa
68
level of protein structure affected by sickle disease?
primary | Glutamic Acid is replaced by Valine
69
symptoms of sickle cell disease?
clogged vessels, organ damage, hemolysis of RBC
70
T or F | zero is the least soluble
T
71
most soluble
weak acid/base and its conjugate pair
72
Net Charge at LOW pH
Positive (+)
73
Net Charge at High pH
Negative (-)
74
PI isoelectric point ph level?
6 - insoluble or precipitates
75
T or F | zwitterion is insoluble
T kasi 0 charge ang zwitterion
76
At low ph ano ang nababawasan? carboxylic or amino group?
Carboxylic group
77
at high pH ano ang nababawasan carboxylic or amino group?
Amino group
78
special amino acids
cysteine, histidine, tyrosine
79
pH
Protonation
80
pH>pka
Deprotonation
81
reaction for acid base solution?
Neutralization
82
breaking down of a compound
Hydrolysis
83
in presence of excess base? favors forward or backward reaction?
Forward ---->
84
in presence of excess acid? favors backward or forward reaction?

Biochemistry Lecture and Laboratory (8 decks)

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