C/P

Question 1

What q can this answer?

Answer 1

• what are they measuring? it should be a product after the enzyme to be able to say anything about the enzyme kinetics like Vmax or Km or Ea
• to measure if something is an allosteric inhibitor, you have to vary the concentration of that potential inhibitor
• Typically, when you reach a max saturation concentration, you’ve reached Vmax

Question 2

Surface tension

Answer 2

J/m^2

• stronger for more IMF / H-bonds
• size/SA is not a factor

Question 3

Viscosity and springs

Answer 3

• fluid can stretch indefinitely

- springs cannot

Question 4

Flow rate

Answer 4

-proportional to pressure difference b/w adjacent locations until flow becomes turbulent

• as flow rate increases, IMF decreases
• laminar flow = parallel streamlines

Question 5

Enzymes and inhibitors

Answer 5

• Enzymes decrease activation energy

- enzyme inhibitors therefore increase activation energy

Question 6

Blood clot

Answer 6

-greatest velocity at clot with lowest area

A1v1 = A2v2

Question 7

Sunscreen

Answer 7

-white- reflect light

Question 8

Monooxygenase rxns

Answer 8

-incorporate on OH into substrate by reducing 2 O2’s are reduced to one OH and one H2O by oxidizing concomitant (associated) NADH or NADPH

“Oxygen gets reduced to OH and H2O

Question 9

heterogenous and homogenous nucleation

Answer 9

Nucleation is the first step in the formation of either a new thermodynamic phase or a new structure via self-assembly or self-organization

heterogenous nucleation > homogenous nucleation

Homogeneous nucleation occurs spontaneously and randomly, but it requires superheating or
supercooling of the medium.

hetero- normally occurs at nucleation sites on surfaces contacting the liquid or vapor; need a liquid-solid interface to begin crystallization - independent of pH

Question 10

molar solubility

Answer 10

moles of solute LOST per liter sol’n

• changing the volume changes the moles dissolved, but the solubility is constant
• Ksp is only affected by temperature
• adding water decreases concentration, including [H+]

Question 11

Venturi effect

Answer 11

• less cross sectional area = velocity increases to maintain continuity
• hydrostatic pressure decreases to conserve mechanical energy

Question 12

delta lactone

Answer 12

5 C ring (6 membered)

Question 13

Circuits

Answer 13

when a battery, resistor, and capacitor are connected in series, the charge accumulates and voltage rises asymptotically towards the battery voltage

Question 14

moles acid = moles base

Answer 14

even for not-strong acids/bases in titrations

Question 15

Heat capacity and power

Answer 15

Heat capacity = Q/deltaT (J/C or J/K)

W = P*T = J = heat = Q

Question 16

Bomb calorimeter

Answer 16

Q released by sample = Q bomb + Q water

Question 17

Respiratory Quotient

Answer 17

CO2 produced / O2 consumed

METABOLISM

Question 18

Disproportionation

Answer 18

rxn where substance is simultaneously oxidized and reduced

Question 19

LiAlH4

Answer 19

LAH

-reduces tertiary structure’s disulfide and ionic bonds but not H-bonds/hydrophobic

Question 20

Pauli exclusion principle

Answer 20

-same 4 quantum numbers

Question 21

Radio waves

Answer 21

AM has the lowest freq and longest wavelength

Question 22

F = qvB

Answer 22

B = F/qv = N / (C x m/s)