The method of movement that requires the expenditure of ATP molecules is
a. simple diffusion.
b. facilitated diffusion.
c. osmosis.
d. active transport.
e. passive transport.
D
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The laboratory receives a bloody, tissue contaminated surgical forceps. Upon removal the laboratory should dispose of the instrument by:
a. placing in the biohazard container. b. placing in a sharps container. c. sending back to surgery for disposal. d. ensuring proper return to surgery for chemical sterilization.
Cyanobacteria ________
a. are ancient species that released oxygen during photosynthesis b. can withstand exposure to boiling water c. cannot perform nitrogen fixation d. are thought to be very similar to the first cells in existence
Which anterior pituitary hormone triggers ovulation?
a. GnRH b. estrogen c. progesterone d. FSH e. LH
Interference RNA technology is one of the most exciting new developments in genetics in recent years
In April 2004, Cancer Research UK and the Netherlands Cancer Institute announced creation of a 24,000-molecule iRNA library, designed to inactivate about 8,000 human genes. One hope for this library is its application in combating cancer. How might iRNA be implemented in cancer treatment?