Cyanobacteria are best described as ________.
A. all being obligate chemoheterotrophs
B. all being obligate photolithoautotrophs
C. some being photolithoautotrophs that can function as chemoheterotrophs in the dark
D. None of the choices are correct.
Answer: C
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The E. coli origin, oriC, contains:
A. four 9-base-pair consensus sequences. B. three AT-rich direct repeats. C. eleven GATC sites. D. four 9-base-pair consensus sequences and three AT-rich direct repeats. E. four 9-base-pair consensus sequences, three AT-rich direct repeats, and eleven GATC sites.
Bile is ____
a. an enzyme that digests fat b. made in the gallbladder c. stored in the liver d. a mix of salts, pigments, and cholesterol e. necessary for protein digestion
All lipids are ________
A) water-loving molecules B) hydrophilic C) hydrophobic D) hydrolytic
Trypanosoma is an organism that causes african sleeping sickness and is transmitted to a human by a ____
a. mosquito b. tsetse fly c. kissing bug d. tick e. none of the above