Olfactory receptors located in the superior region of the nasal cavity are stimulated when airborne molecules are inhaled and dissolved in the mucous covering
Indicate whether this statement is true or false.
TRUE
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Neuronal divergence occurs when axons from one preganglionic cell synapse on numerous ganglionic cells
Indicate whether this statement is true or false.
A phagocyte can kill a microbe only after phagocytosis
Indicate whether the statement is true or false.
Which statement describes how the plasmalemma is used in communication and sensitivity?
A) It contains gated channels that can be opened or closed to regulate the passage of materials. B) It effectively isolates the cytoplasm from the surrounding fluid environment. C) It provides for specialized connections between neighboring cells. D) It serves as a storage site for large amounts of proteins for future use by the cell. E) It acts as a site for the attachment of glycoproteins and glycolipids, which act as receptors for molecules present in the extracellular fluid.
You should allow the microscope to cool before storing it because ________
A) its motor and light are warm and a student could get injured B) it is easier to clean when cool C) it will extend the life of the expensive bulb D) it will prevent the motor from burning out