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Analysis of an electron transport system in the cell membranes of a previously unknown Kingdom of organisms revealed that it contained the following components with the redox half-reactions and standard reduction potentials shown in the Table.
Half-Reaction E'o(V)
Cytochrome R+ + e → Cytochrome R +0.35Cytochrome T+ + e → Cytochrome T +0.20Fp 73+ + e → Fp 73 -0.22NAD+ + H+ + 2e → NADH -0.32NO3- + 2H+ + 2e → NO2 - + H2O +0.42
how to Calculate ΔGo' for the transfer of a pair of electrons between each of the carriers in the electron transport system. use the
Nernst equation from this data determine :
i)the steps at which sufficient energy is released to transfer protons across the membrane, assuming ΔGo' for proton transfer against its concentration gradient is 23 kJ per mole of protons.
ii. for one electron pair, the amount of potential energy in the proton gradient which is theoretically available for ATP synthesis under standard conditions. (pls show how you decided on this)
iii. the number of ATP molecules which could theoretically be synthesised per electron pair. (please show how u decided on this)
Most birth control methods are designed to remain the egg and sperm from uniting to form a zygote. How do they keep sperm from uniting with egg.
Mycoplasmas are the smallest living cells. They are spherical and have a diameter of about 0.33 μm (radius of mycoplasmas = 0.165 μm)a.
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The KM of a Michaelis-Menten enzyme for a substrate is 1.0 x 10-4 M. At a substrate concentration of 0.2 M, νo = 43 μM x min-1 for a certain enzyme concentration. However, with a substrate concentration of 0.02 M, νo has the same va..
A male rabbit with genotype GgBb. Find out the gametes produced by this rabbit (the sperm would have these combinations of alleles) Hint there are 4 combinations.
A couple has 4 children. Neither the father nor the mother is bald; one of the two sons is bald, but neither of the daughters is bald. If one of the daughters marries a non bald man and they have a son, what is the possibility that the son will becom..
In extracellular recording of Action potential, why is signal that reach the second electrode become reverted. Describe TWO specific cellular processes that require ATP andexplain how ATP is used in eachprocess.
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define the correct sequence of events in the synthesis.
Anika's cortisol secretion level falls to normal after the medication, but Bonnie's cortisol secretion remains elevated. Which patient has primary hypercortisolism, also called Cushing's syndrome?
An inversion heterozygote possesses a normal chromosome and one with an inversion. The gene orders in these 2 chromosomes are shown below- Normal 1 2 3 4 5 6 7 8 9 10 o.
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