What is the thin, muscular tube through which urine leaves each mammalian kidney?
A) Ureter
B) Collecting duct
C) Nephron
D) Bladder
E) Urethra
A
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Besides turning enzymes on or off, what other means does a cell use to control enzymatic activity?
A) localization of enzymes into specific organelles or membranes B) exporting enzymes out of the cell C) connecting enzymes into large aggregates D) hydrophobic interactions
A molecule of mRNA could be correctly described as a,
a. ribosome b. enzyme c. gene transcript d. protein
Physician Edward Jenner promoted the use of cowpox, a harmless pathogen related to the dangerous smallpox virus, as a vaccination to provide patients immunity from future smallpox epidemics. This is an example of
A. developing high levels of complement. B. passive immunity. C. developing high levels of interferon although Jenner did not realize these diseases were viral. D. active immunity. E. an inflammatory response that decreased the IgE production and increased T cells.
where does translation take place
What will be an ideal response?