What can happen to the carbon dioxide in the atmosphere?
A) It can be released into space from the atmosphere.
B) It can be converted to glucose by plants.
C) It can be converted into carbon monoxide by the oceans.
D) It can react with nitrogen to form fossil fuels.
B
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When substrate-level phosphorylation occurs, it means that:
A. NAD+ is converted into NADH. B. ATP is converted into ADP plus a phosphate group. C. ADP is converted into ATP by the addition of a phosphate group. D. NADH is converted into NAD+ plus a proton.
As two competing species approach their respective carrying capacities, the growth rate of the other species
A) accelerates. B) is unaffected. C) is doubled. D) slows down.
The hominid australopithecines are generally accepted to be different from modern humans because
A. human arms are longer than legs. B. only humans are meat-eaters. C. the human skull is apelike in appearance with a strongly projecting face. D. only humans are bipedal. E. human brains on an average are at least twice as large in size.
You are interested in Fuzzy, a soluble protein that functions within the ER lumen. Given that information, which of the following statements must be true?
(a) Fuzzy has a C-terminal signal sequence that binds to SRP. (b) Only one ribosome can be bound to the mRNA encoding Fuzzy during translation. (c) Fuzzy must contain a hydrophobic stop-transfer sequence. (d) Once the signal sequence from Fuzzy has been cleaved, the signal peptide will be ejected into the ER membrane and degraded.