You stimulate a neuron response by adding a given amount of excitatory neurotransmitter mixed with a 6x higher concentration of an inhibitory neurotransmitter to the synaptic cleft. You expect that
A) excitatory responses will travel 1/6 as often as inhibitory ones.
B) inhibitory responses will travel 1/6 as often as excitatory ones.
C) as a result of neuronal integration, there will be an inhibitory signal.
D) as a result of neuronal integration, there will be an excitatory signal.
E) the neuron will be confused and will not respond to the signal.
C) as a result of neuronal integration, there will be an inhibitory signal.
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Carbon dioxide (CO2) is released during which of the following stages of cellular respiration?
A) glycolysis and the oxidation of pyruvate to acetyl CoA B) oxidation of pyruvate to acetyl CoA and the citric acid cycle C) the citric acid cycle and oxidative phosphorylation D) oxidative phosphorylation and fermentation E) fermentation and glycolysis
Which of the following models of growth takes
place when the amount of available resources is not limiting?
a. arithmetic growth b. logistic growth c. logarithmic growth d. exponential growth e. exponential growth and arithmetic growth
A recovering stroke patient complained about strange smells in his room, but no cause could be found. The doctor diagnosed this as phantosmia, or olfactory hallucination, and said it was likely due to stroke-related damage to which tissue?
A. Peripheral nervous system B. Olfactory receptors C. Nodes of Ranvier D. Central nervous system
In the reaction to the right, pyruvate is converted to acetyl-CoA. Which if any of the following statements concerning this reaction is true? There may be more than one correct answer
A. CO2 is the most oxidized and therefore least energetic form of carbon. B. NAD+ is more reduced than NADH. C. NAD+ is an oxidizing agent. D. This is not an oxidation/reduction reaction, that is, no electrons have moved. E. This reaction harnesses the last of the remaining potential energy from glucose.