Synaptic integration means that ____.
A. positive or excitatory stimuli produce an excitatory postsynaptic potential
B. the positive and negative ions neutralize each other
C. excitatory and inhibitory signals are summed in a receiving neuron
D. the adjacent neurons interact so that excitatory and inhibitory stimuli cancel each other out
E. excitatory signals take precedence over inhibitory signals
Answer: C
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Since the Krebs cycle is a cyclic pathway, the original acceptor needed to start the Krebs cycle and the end product of the Krebs cycle are
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Which of the following events follows cell fusion in an ascomycete?
a. conidiophore formation b. conidiospore germination c. ascus opening d. ascospore formation e. conidiospore release
Growth and development of plant parts involves _____
I) cell division to produce new cells II) enlargement and elongation of cells III) specialization of cells into tissues A) only I B) only II C) only III D) I, II, and III
Answer the following questions true (T) or false (F)
1. Generally, purines and pyrimidines are not synthesized de novo but rather obtained through salvage pathways to recycle them from food because de novo synthesis has a high energy cost. 2. Usually, a single biochemical test is all that is needed to identify an unknown microbial sample. 3. Chronic diseases have a rapid onset and progression.