Which organism produces the toxic red tide?
A. foraminifera
B. dinoflagellates
C. zoomastigotes
D. diatoms
E. euglenoids
Answer: B
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The embryonic shoot tip is indicated by the letter ____
a. A b. B c. C d. D e. E
These are the primary cellular sites for the extraction of energy from organic compounds
a. Golgi bodies b. ribosomes c. mitochondria d. lysosomes e. endoplasmic reticula
During translation initiation in prokaryotes, the amino acid on the initiator tRNA is __________
A) methionine (Met) B) N-formylmethionine (fMet) C) acetylated D) IF-1 E) added using ATP as the energy source
You have developed an antibiotic that inhibits a bacterial enzyme critical for the formation of the cell wall. However, after only a short time, the bacteria become resistant to the antibiotic, and it's no longer effective
Which mechanism is responsible for the bacteria no longer being sensitive to your antibiotic? A) Over time, your antibiotic selected for bacteria containing a gene that codes for an enzyme capable of metabolizing your antibiotic. B) The bacteria learned to avoid taking up the antibiotic in their surroundings. C) The immune system of bacteria recognized the antibiotic as being foreign and quickly removed any antibiotic before it could accumulate to toxic levels. D) Through the use of plasmids, bacteria communicated with other bacteria that a noxious chemical was present in the environment.