You Are Looking at the Electrical Activity at a Receptor

question 248

Multiple Choice

You are looking at the electrical activity at a receptor site on the postsynaptic membrane. The measured potential is -80 millivolts (below the resting potential) . How is this possible?

• A)No neurotransmitters were released into the synaptic cleft.
• B)A neurotransmitter has hyperpolarized the postsynaptic membrane.
• C)A neurotransmitter has depolarized the postsynaptic membrane.
• D)Positive ions have entered ion channels near the receptor site.
• E)The postsynaptic membrane is an axon.

Explain how data is organized and manipulated within databases.

Recognize the role of primary keys in establishing relationships between tables.

Understand how multidimensional databases store data.

Learn the relevance of database systems in storing and organizing data across various dimensions.

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