Why is methicillin-resistant Staphylococcus aureus (MRSA) methicillin resistant?
a. The bacteria are able to prevent entry of the drug into the cell.
b. It has an enzyme that destroys methicillin.
c. It actively pumps the antibiotic out of the cell.
d. It produces a modified version of the molecule that is targeted by the drug.
Answer: d. It produces a modified version of the molecule that is targeted by the drug.
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Which type of cell is represented in this figure?
a. a Gram-positive bacterium b. a Gram-negative bacterium c. either a Gram-positive or a Gram-negative bacterium d. an archaeal cell e. any prokaryotic cell
A green alga being able to occupy small crevices due to its small size is an example of ________ as an adaptation to predation
a. tolerance b. symbiosis c. deterrence d. avoidance
Blood moves through the structure indicated by
a. A. b. B. c. C. d. D. e. E.
While T lymphocytes are maturing, each of them develops one of two sets of proteins on their cell surface. These proteins are known as ________ and ________
Fill in the blank(s) with correct word