GABA receptors play an essential role in neurotransmission in the central nervous system. In response to the appropriate signal, these receptors open up and allow Cl- to flow into the cell. Given this information, GABA receptors can be classified as a
A. gated ion channel.
B. gated carrier protein.
C. Cl- pump.
D. symporter.
Answer: A
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In a(n) ____ translocation, two nonhomologous chromosomes exchange parts and no genetic information is gained or lost from the cell in the exchange
a. cri du chat b. XXY c. copy number d. Robertsonian e. reciprocal
Which plant cell structure is comprised of approximately 300 chlorophyll molecules and about 40 carotenoid
pigments, organized together to optimize the capture of light energy?
a. reaction center b. chlorophyll c. antenna complex d. cytochrome complex e. stomata
A molecule that can donate H+ to solution is called a base.
a. true b. false
Several snake species that are harmless have very similar color patterns to the venomous coral snake. This is best described as an example of what?
A. crypsis B. Müllerian mimicry C. aposematic coloration D. Batesian mimicry E. intimidation