What is meant by the phrase "cyclic AMP acts as a second messenger"?
What will be an ideal response?
Cyclic AMP is an intracellular messenger that is activated by the first messenger (hormone). It can then transfer this message to other molecules within the target cell that enable it to respond.
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What might occur if blood calcium levels rise?
A. Blood parathyroid hormone levels would decrease. B. Blood parathyroid hormone levels would increase. C. Blood vitamin D (1,25 dihydroxyvitamin D) would be stimulated. D. Blood calcium levels are not under control by hormones. E. Vitamin D would be converted to vitamin E.
The strand of DNA for a particular gene that is copied by the RNA polymerase to form mRNA is called the ________ strand.
A. leading B. copy C. template D. transcription
The pathogenic cause of disease is called the _____ agent.
A) mortality B) etiological C) prevalence D) none of the above
Which organism is used to initiate the fermentation of cabbage to make sauerkraut?
A. Saccharomyces cerevisiae B. Streptococcus lactis and Lactobacillus C. Propionibacterium D. Spirulina E. Leuconostoc mesenteroides