Bio / Biochem 2 Flashcards

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1
Q

Kc

A

Kc = [PDTs] / [reactants]
If Kc = 0.5, there’s 2x as many reactants as products
If you started under standard conditions, you’re starting at 1M each
Since in the balanced equation Reactants : Products are in a 1:1 ratio, you should end up with 2M total at the end too

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2
Q

Adenylyl cyclase

A
  • lyase

- Mg2+ cofactor

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3
Q

RBC

A

no nucleus

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4
Q

parenchyma

A

-functional cell

vs connective tissue - supportive
bone, cartilage, tendons, ligaments, adipose, blood

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5
Q

PPP RLS

A

-Glucose-6-P dehydrogenase

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6
Q

UDP-gal epimerase

A

convert hexose epimers

ex- galactose to glucose

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7
Q

Thyroid

A

TRH -> TSH –| TRH
TSH-> T3/T4, whose production involves iodine uptake + thyroglobulin synthesis
= hypertrophy (bigger) / hyperplasia (more cells)

Goiter = enlarged thyroid
-Iodine deficiency = can’t make thyroid hormones = high TSH = enlarged thyroid / goiter

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8
Q

Cross sectional studies

A
  • same point in time, many groups
  • PREVALENCE
  • NOT causation/correlation or incidence of new cases/year
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9
Q

Bacteriophage

A

-capsid, tail sheath, tail fibers

tail fibers identify host proteins - what it can infect

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10
Q

Waxes

A

long chained esters

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11
Q

Thymocyte

A

T-cell

  • must recognize self-MHC (pos selection) but not self-antigen (neg selection)
  • MHC for getting activated

T cell maturation facilitated by THYMOSIN (peptide hormone) - secreted by thymic cells

-naive until exposure to antigen and clonal selection

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12
Q

systemic

A

-whole system- central and peripheral - circulate in blood

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13
Q

“sufficient”

A

is a strong word

-only if you control for internal validity / confounding variables

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14
Q

Thyroxine

A

-system-wide effect
-enters nucleus, activates genes
T4

T3 = triiodothyronine

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15
Q

Less exercise

A

= use less calories
= increase body fat deposition

READ THE GRAPHS

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16
Q

Strecker Synthesis

A

aa synthesis

Aldehyde + NH4Cl -> aminonitrile + H+/H2O -> aa

Aminonitrile has Nh2 and CN group

17
Q

Gabriel Malonic Ester Synthesis

A

aa synthesis

Et-COO-C-X-COOEt + pthalamide -(SN2)-> then add EtO-/RX for SN2 alkylation then hydrolysis then decarboxylation