WITH ALREADY SOLVED CORRECTLY
ANSWERS!! | ASSURED SUCCESS
What is the chemical structure of a component found in four of the five
cofactors used by Na+-NQR? - 🧠 ANSWER ✔✔says it is composed of
flavin
structure is a nucleotide base
structure B could be
structure C also could be
structure D is an amino acid
down between B and C
,to help, look at the captioned note on the table. it says Fl represents flavin
which is the redox active center in four of the five cofactors of Na+-NQR
C has an uniquinone AND HERE IS IS MENTIONED THAT UNIQUINONE
IS IS A SUBSTATE
What is the ratio of cation to enzyme in the spectroelectrochemical
experiments described in the passage? - 🧠 ANSWER ✔✔cation : enzyme
passage says Na+NQR was diluted to a final concentration of 0.75 mM in
0.150 molar of the cation ions
cation .15 M:
The reaction between NADH and ubiquinone is exergonic, but the reaction,
when catalyzed by Na+-NQR, does not generate much heat in vivo. What
factor accounts for this difference? - 🧠 ANSWER ✔✔Conservation of
energy, it is not created nor destroyed but merely changes forms
A. Is not possible, Even if it was heat generation would be larger for a
catalyzed rection.
C. is impossible, reactants have to be close together to react
,The movement of a charged particle against its concentration gradient is
energetically costly.
Two open flasks I and II contain different volumes of the same liquid.
Suppose that the pressure is measured at a point 10 cm below the surface
of the liquid in each container. How will the pressures compare? - 🧠
ANSWER ✔✔pressure=pgh
g=10
p= density (same liquid so same density)
h= 10 cm
both have same height so pressure will be the same-- if heights were
different pressure would be different
Question
Which of the following substances is polar? - 🧠 ANSWER ✔✔If there is a
net dipole it is polar
Question
If all else is held constant, which of the following changes would NOT
double the volume of a gas? - 🧠 ANSWER ✔✔pv=nrt
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3
, What is the number of neutrons in the nucleus of the atom used to produce
laser radiations? - 🧠 ANSWER ✔✔86Kr+ laser
86= mass
Kr has proton number as 36
86-36=50
the cation or anion charge with any element is indicative of the charge aka
electron count
What is the molecular formula of the heterocyclic aromatic compound
pyrrole? - 🧠 ANSWER ✔✔passage says its a tetra pyrrole so there are 4
carbons
The radiation of wavelength 605 nm CANNOT be used to produce the
fluorescence radiations depicted in Figure 3 because: - 🧠 ANSWER
✔✔Maybe if you read the passage for once in your life and not get
confident then maybe you wouldn't have to take the exam for a third time
Not D because look at the passage
not C because of E=hc/lambda (high wavelength low energy)