Which letter in the figure above corresponds to a large influx of Na+ ions into the cell?
A) A
B) B
C) C
D) D
E) E
Answer: B
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A marine fish with a cold body temperature that matches its cold surroundings is an example of rev
A. negative feedback. B. regulating. C. conforming. D. conditioning.
Allosteric inhibitors are often ____
a. substrates of the reactions they regulate b. products of the reactions that they regulate c. charged amino acids in the active site d. large, complex organic molecules e. competitive inhibitors
Repressible operons are normally turned on in the cell.
Answer the following statement true (T) or false (F)
Which of the following is a possible intermediate during pre-rRNA processing?
a. An RNA molecule containing 18S + 5.8S rRNAs b. An RNA molecule containing 5.8S + 28S rRNAs c. An RNA molecule containing 5S + 28S rRNAs d. An RNA molecule containing 18S + 28S rRNAs