The most common dental anesthetic used is lidocaine. Lidocaine blocks voltage-gated Na+ channels. Where along the facial nerve would you expect lidocaine to be active?

A. along the cell body
B. at the dendrite
C. along the axon
D. at the axon terminals
E. at the synaptic cleft


C

Biology & Microbiology

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A mutualistic symbiosis where fungal hyphae grow between and around plant roots but do not

penetrate plant root cells is called a(n) ____.

a. ectomycorrhiza b. lichen c. arbuscule d. endomycorrhiza e. haustorium

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Referring to the above diagram of the brain, A

identifies which lobe of the cerebrum?

a. frontal lobe b. parietal lobe c. occipital lobe d. temporal lobe e. primary motor cortex

Biology & Microbiology

In most eudicots, a short stalk called a ____ attaches the leaf to a stem

a. vascular bundle b. petiole c. node d. bundle sheath e. stomata

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In the reaction A ? B + C + heat

A) there is a net input of energy. B) the potential energy of the products is greater than that of the reactant. C) the potential energy of the products is less than that of the reactant. D) entropy has decreased.

Biology & Microbiology