How does one account for the bubbles in a glass of beer or champagne?
A) Bubbles of CO2 were formed by the yeast cells during glycolysis.
B) Bubbles of CO2 were produced by yeast during anaerobic metabolism and were trapped in the bottle.
C) The bubbles are simply air bubbles resulting from the brewing process.
D) Bubbles of CO2, produced by aerobic respiration in yeast cells, were trapped in the beverage at bottling.
E) Lactate fermentation accounts for the bubbles.
B
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In the Hershey and Chase experiment, 32P was used to label ____ and 35S was used to label ____
a. RNA; protein b. protein; DNA c. phospholipids; protein d. protein; phospholipids e. DNA; protein
The enamel in a tooth's crown directly covers the
a. root. b. pulp cavity. c. root canal. d. dentin. e. gingiva.
Which of the following are NOT haploid?
A. Polar bodies and secondary spermatocytes B. Primary oocytes and spermatids C. Secondary spermatocytes and spermatogonia D. Primary oocytes and spermatogonia E. Secondary spermatocytes and spermatids
Compare the structure and function of arteries to that of veins.
What will be an ideal response?