Identify the numbered items in the accompanying figure. Include the following terms in your description
? presynaptic neuron
? postsynaptic neuron
? neurotransmitters waiting to be released
? neurotransmitters released by the nerve impulse
? synapse
? receptors with bound neurotransmitters
The numbered items correspond to the following descriptions:
Biology & Microbiology
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In principle, gene expression can be controlled at any of the steps between a gene and its ultimate functional product. For the majority of genes, however, the __________ is the most important point of control. Because this control point can ensure that no unnecessary intermediates are synthesized.
A) Replication. B) Transcription C) Translation. D) PCR.
Which part of the loop of the nephron actively transports salts from the filtrate to interstitial tissues?
You stumble upon an unidentified arthropod with no antennae and eight legs. This organism is likely closely related to _____.
A. grasshoppers B. ticks C. crayfish D. millipedes E. trilobites
Before another action potential “spike” can occur
a. there must be a very brief restoration of the resting conditions in the membrane.
b. the membrane voltage must drop to zero.
c. the sodium-potassium pump must cease temporarily.
d. all of the membrane gates must be closed at the same time.
e. all of these must happen.