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FLETCHER BIOL 213 EXAM 1 QUESTIONS WITH COMPLETE ANSWERS

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FLETCHER BIOL 213 EXAM 1 QUESTIONS WITH COMPLETE ANSWERS

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What is the pH of a solution that has a concentration of 1 micromolar for H+ (1 x
10^-6)?


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6




Amino acids basic side chains


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, lysine, arginine, histidine




pH formula


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-log[H+]




Why are model organisms commonly used in biological research?


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Model organisms are inexpensive, easy to maintain, and share fundamental
biological processes with humans




How to solve concentration equations


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First take your dry weight in grams/mole and convert to 2 g using liters.

(Milli = 10^ -3, Kilo = 1000, Micro = 10^ -6)

Use C1V1 = C2V2 to find mL

, Always assume a little less ( ~ .3) than total volume of water




Any reaction A » B is at equilibrium when


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delta G=0




Vmax


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maximum initial velocity or rate of an enzyme-catalysed reaction (plateu on
graph)




Central Dogma


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DNA synthesis, replication (Genome) -> RNA synthesis, transcription
(Transcriptome) -> protein synthesis, translation (Proteome)




For the reaction A->B, what would the equilibrium constant be if Delta G knot = -15
kJ/mol?


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, 335

Keq​=e−ΔG∘/RT
Keq​=e(−(−15))/(2.58×310)




beta vs alpha glucose


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3 Domains of life


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Bacteria, Archaea, Eukarya (Animals, Plants, Fungi, Protists)




True or False? Smaller cells have a greater surface area relative to their volume,
allowing efficient diffusion of nutrients and waste.


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True

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