Quiz 4 Flashcards
This is an RNA molecule that cuts and splices other RNA molecules
Ribozyme
All of the following are TRUE statements about glycolysis EXCEPT:
It produces two molecules of ATP (net)
Which of the following are NOT produced in glycolysis pathway?
2 CO2
For the glycolysis pathway to operate, oxygen gas (O2) must be present.
False
Which of the following is NOT produced in the “transition/preparatory/intermediate step” between the reactions of glycolysis and the Karen’s Cycle?
ATP
When considering a single turn of the Krebs cycle (not including the transition/intermediate/preparaory step before Krebs cycle0 which of the following is produced?
3 NADH + 3 H+
Which of the following types of phosphorylation reactions is/are involved in the production of ATP in the Krebs cycle?
Substrate- level phosphorylation
In prokaryotes, the Electron Transport Chain (ETC) is located where?
Plasma membrane
For each molecule of NADH, ______ molecules of ATP are produced in the ETC, and for each molecule of FADH2 ______ molecules of ATP are produced.
3, 2
What chemical reactions occur as electrons are passed from one carrier to another within the ETC?
Oxidation-Reduction reactions
The final electron acceptor in aerobic cellular respiration is:
Always molecular oxygen (O2)
What passes through ATP synthase in the ETC to generate ATP?
Hydrogen ions
The final acceptor in anaerobic cellular respiration is:
There’s no way to know for sure; it varies by species
The reactions of fermentation (just fermentation, nothing before) always produce:
NAD+
The final acceptor in fermentation is:
Always a derivative of pyruvic acid
Fermentation is a form of anaerobic cellular respiration.
False
What can be determined from inoculating a PR-Carbohydrate broth with an unknown bacterium?
Whether or not the the organism can be ferment the carbohydrate present
Whether or not the organism can produce gas as a waste product
In fermentation, how many molecules of ATP are produced (net) when starting with one molecule of glucose?
2
In prokaryotes, how many molecules of ATP are produced (net) in anaerobic cellular respiration, starting with one molecule of glucose?
More than 2 but less than 38
During aerobic cellular respiration in prokaryotes, what is the maximum theoretical ATP yield when a single molecule of glucose is completely oxidized?
38
The reason humans need molecular oxygen (O2) to survive is because it combines with individuals carbon atoms (that come from the body’s catabolic reactions) to form a carbon dioxide (CO2) as a waste product.
False
