During electron transport, excess amount of protons is transported into the cell
a. true
b. false
Ans: b. false
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Which of the following processes will occur in the presence or absence of oxygen?
A. glycolysis B. electron transport chain C. oxidative phosphorylation D. cellular respiration E. citric acid cycle
Some segments of the precursor mRNA in eukaryotes are non-coding and are called
A. exons. B. introns. C. integrans. D. uselessans.
A potent neurtoxin that causes paralytic shellfish poisoning in coastal temperate North America is produced by ________.
A. dinoflagellates B. green algae C. red algae D. diatoms
Which of the following characteristics are expected in the first animals to have colonized land?
1. were probably herbivores (ate photosynthesizers) 2. had four appendages 3. had the ability to resist dehydration 4. had lobe-finned fishes as ancestors 5. were invertebrates A) 3 only B) 3 and 5 C) 1, 3, and 5 D) 1, 2, 3, and 4