CSCC Bio 2215 Exam 2 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Experiments designed by _____ suggested that living cells caused fermentation of sugar to
produce alcohol. - CORRECT ANSWER - Pasteur
Buchner showed that ground-up yeast cells were able to convert sugar to alcohol. The
components of the mixture that were responsible for this transformation were: - CORRECT
ANSWER - Enzymes
_____ is the amount of energy gained by breaking bonds of a chemical. - CORRECT
ANSWER - Free Energy
-May use substrate-level phosphorylation to produce ATP
-May use oxidative phosphorylation to produce ATP
-utilize an electrochemical gradient - CORRECT ANSWER - Chemoorganotrophs
_____ used an organic molecule as the final electron acceptor - CORRECT ANSWER -
Fermentation
Pyruvate can be metabolized along two major routes. They are: - CORRECT ANSWER -
1. Fermentation
2. Respiration
Enzymes speed up reactions by: - CORRECT ANSWER - lowering activation energy
-Organic molecules
-transfer atoms from one molecule to another
, -synthesized from vitamins - CORRECT ANSWER - Coenzymes
_____ is a means of regulating the amount of product produced & often involves the use of
allosteric enzymes - CORRECT ANSWER - Feedback Inhibition
-substrate & inhibitor both bind to the active site
-PABA (para-aminobenzoic acid) is a competitive inhibitor - CORRECT ANSWER -
Competitive Inhibition
_____ links glycolysis to the TCA (Krebs) cycle - CORRECT ANSWER - Transition Step
The TCA cycle produces: - CORRECT ANSWER - ATP
NADH
FADH2
precursor metabolites
-used to synthesize ATP
-used to drive flagella rotation - CORRECT ANSWER - Proton Motive Force
Sugar component of RNA & DNA nuceotides are synthesized: - CORRECT ANSWER -
as ribose & then changed to deoxyribose
The arsenic compound that proved highly effective in treating syphilis was called: - CORRECT
ANSWER - Salvarsan
One of the earliest antimicrobials isolated from a bacterium was: - CORRECT ANSWER -
streptomycin
Bacteria that has an innate resistance to penicillin: - CORRECT ANSWER - Mycoplasma
ACTUAL Exam Questions and CORRECT
Answers
Experiments designed by _____ suggested that living cells caused fermentation of sugar to
produce alcohol. - CORRECT ANSWER - Pasteur
Buchner showed that ground-up yeast cells were able to convert sugar to alcohol. The
components of the mixture that were responsible for this transformation were: - CORRECT
ANSWER - Enzymes
_____ is the amount of energy gained by breaking bonds of a chemical. - CORRECT
ANSWER - Free Energy
-May use substrate-level phosphorylation to produce ATP
-May use oxidative phosphorylation to produce ATP
-utilize an electrochemical gradient - CORRECT ANSWER - Chemoorganotrophs
_____ used an organic molecule as the final electron acceptor - CORRECT ANSWER -
Fermentation
Pyruvate can be metabolized along two major routes. They are: - CORRECT ANSWER -
1. Fermentation
2. Respiration
Enzymes speed up reactions by: - CORRECT ANSWER - lowering activation energy
-Organic molecules
-transfer atoms from one molecule to another
, -synthesized from vitamins - CORRECT ANSWER - Coenzymes
_____ is a means of regulating the amount of product produced & often involves the use of
allosteric enzymes - CORRECT ANSWER - Feedback Inhibition
-substrate & inhibitor both bind to the active site
-PABA (para-aminobenzoic acid) is a competitive inhibitor - CORRECT ANSWER -
Competitive Inhibition
_____ links glycolysis to the TCA (Krebs) cycle - CORRECT ANSWER - Transition Step
The TCA cycle produces: - CORRECT ANSWER - ATP
NADH
FADH2
precursor metabolites
-used to synthesize ATP
-used to drive flagella rotation - CORRECT ANSWER - Proton Motive Force
Sugar component of RNA & DNA nuceotides are synthesized: - CORRECT ANSWER -
as ribose & then changed to deoxyribose
The arsenic compound that proved highly effective in treating syphilis was called: - CORRECT
ANSWER - Salvarsan
One of the earliest antimicrobials isolated from a bacterium was: - CORRECT ANSWER -
streptomycin
Bacteria that has an innate resistance to penicillin: - CORRECT ANSWER - Mycoplasma
