In higher eukaryotes, most aerobically generated ATP is produced by
A. a membrane-bound proton translocating ATP synthase during oxidative phosphorylation.
B. the TCA cycle.
C. glycolysis.
D. all of these generate equal amounts of ATP.
Answer: A
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The key enzyme that regulates glycolysis by responding to changing levels of ATP is hexokinase
a. True b. False
A large watermelon fruit is very heavy and contains nearly 90% water. Since the skin of a watermelon is thick and lacks stomata, transpiration does not "pull" water into the watermelon. So, how does all that water get into the fruit?
A. Water enters by osmosis from the soil. B. Water is transported in the phloem along with the sugars while they are being translocated into the fruit. C. Root pressure pushes water into the watermelon. D. Water is pumped in by active transport. E. Watermelons, like other fruit, contain an abundance of xylem.
You briefly expose bacteria undergoing DNA replication to radioactively labeled nucleotides. When you centrifuge the DNA isolated from the bacteria, the DNA separates into two classes
One class of labeled DNA includes very large molecules (thousands or even millions of nucleotides long), and the other includes short stretches of DNA (several hundred to a few thousand nucleotides in length). These two classes of DNA probably represent _____. A) leading strands and Okazaki fragments B) lagging strands and Okazaki fragments C) Okazaki fragments and RNA primers D) leading strands and RNA primers
How are chytrids different from glomeromycota, basidiomycota, and ascomycota?
What will be an ideal response?