Which is NOT a reason why microorganisms may have an inherent natural resistance to an antibiotic?
A) The organism may be able to pump out an antibiotic entering the cell.
B) The organism may be impermeable to the antibiotic.
C) The organism may be able to mutate the antibiotic target site to avoid antibiotic binding.
D) The organism may be able to alter the antibiotic to an inactive form.
E) None of the above.
Ans: E) None of the above.
You might also like to view...
Which secreted molecule is LEAST likely to effect a significant change in blood pressure?
A. antidiuretic hormone B. aldosterone C. nitric oxide D. high-density lipoprotein E. atrial natriuretic hormone
In the pressure-flow model of phloem transport, the sink is normally
A. the stem. B. lenticels. C. xylem. D. the roots.
The burning of fossil fuels by cars and factories has most affected the ______________ cycle.
Fill in the blank(s) with the appropriate word(s).
Neurons release neurotransmitters stored in vesicles by a process known as _______.
Fill in the blank(s) with the appropriate word(s).