A membrane protein that spans the phospholipid bilayer one or more times is _____
A) a transmembrane protein
B) an associated protein
C) a peripheral protein
D) an integrin
E) a glycoprotein
Answer: A
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Otitis media is commonly treated with broad spectrum antibiotics, although there is a lot of push-back or pressure against doing this. Why are these drugs given for this condition?
A. The narrow-spectrum drugs are very toxic as opposed to the rather benign broad-spectrum ones. B. No other kinds of drugs and antibiotics can kill the bacteria causing otitis media other than the broad-spectrum class of drugs. C. Fungi are the most common cause of otitis media, and the fungi do not respond well to the narrow-spectrum drugs. D. Otitis media is often caused by a variety of bacteria growing together in a biofilm, and the bacteria often exhibit different susceptibilities to drugs.
If you, like Mendel, grow plants in the lab, and cross short (tt) pea plants with short pea plants, the offspring will be
A. all tall. B. all short. C. nonexistent. D. a mix of tall and short. E. None of the answer choices is correct.
As you climb a mountain, why do the biomes change?
A. The air is thinner. B. The latitude is changing. C. More rain falls in a rain shadow. D. Some animals live better at higher elevations. E. It is colder.
What do tarsiers and giant squids have in common?
a. They are both active during daytime as well as at night. b. They both live in water. c. They are both active during daytime. d. They are both nocturnal.