Induction of long-term potentiation and long-term depression requires activation of two types of:
a. acetylcholine receptors.
b. GABA receptors.
c. norepinephrine receptors.
d. glutamate receptors.
e. serotonin receptors
ANSWER: d
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How do citrus fruits such as lemons cause the basic taste of sour?
A) The more acidic the food is, the more depolarization of the sensory receptor occurs. B) Ascorbic acid binds to sensory receptors on the plasma membrane of taste cells, which leads to the triggering of cellular activity that trigger a sour taste response. C) Sugars and ascorbic acid bind sensory receptors on the plasma membrane of taste cells, which leads to the triggering of cellular activity that trigger a sour taste response. D) Citric acid amplifies the sour taste of vitamin C when it binds to specialized receptors on the taste cells.
The series of steps used to connect an organism to a disease are known as
A. Pasteur's postulates. B. Lister's aseptics. C. Linnaeus taxonomics. D. Koch's postulates.
One type of archaeon, Haloquadratum walsbyi, is shaped like a postage stamp with dimensions of 2 µm x 3 µm x 0.25 µm. What advantage would this shape provide?
A. This shape is more conducive to the formation of biofilm communities. B. This shape increases the surface to volume ratio enabling more efficient nutrient uptake. C. This shape is difficult for phagocytic cells to attach to and engulf. D. This shape enables this bacteria to float on surfaces and obtain better light exposure.
__________ and __________ fluid are the main components of extracellular fluid. Fill in the blank(s) with the appropriate word(s)