In general, a cell receiving a message undergoes three stages of cell signaling. The stages are ____
a. the paracrine, autocrine, and local stages.
b. signal reception, signal transduction, and cellular response
c. signal reception, nucleus disintegration, and apoptosis
d. signal reception, cellular response, and cell division
e. the alpha, beta, and gamma stages
B
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You observe a chimpanzee using a stick to dig termites out from a nest. The chimpanzee then eats the termites. This type of behavior is an example of ______________; the termites are the ______________
A. non-associative learning; stimulus B. habituation; signal C. sensitization; second stimulus D. operant conditioning; reward
The function of the bacteriophage ? N protein is to:
A. bind directly to the promoter of genes that are active late in the infection process. B. allow transcriptional read-through of hairpin terminator sites in mRNA. C. block ? repressor synthesis. D. block transcription of all phage genes except its own.
Which is the correct summary equation of aerobic respiration?
a. C6H12O6 +H2O2 = CO2 + H2O b. C6H12O6 + O2 = CO2 + H2O + NH3 c. C6H12O6 + O2 = CO- + H2O d. H2O + NH3+ C6H12O6 = O2 + CO2 e. C6H12O6 + O2 = CO2 + H2O
At which point in the graph do voltage-gated potassium channels open?
A) A B) B C) C D) D E) E