Researchers Are Conducting a Study to Determine the Effects of the Mineral

question 19

Multiple Choice

Researchers are conducting a study to determine the effects of the mineral zinc on the human body.The study involves providing pills that contain zinc to one group of human subjects and pills that do not contain zinc or other active ingredients to another group of people.The pills that do not contain zinc are

• A)probiotics.
• B)supplements.
• C)antidotes.
• D)placebos.

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Definitions:

Postsynaptic Neuron

The postsynaptic neuron is the neuron that receives a signal (neurotransmitter) across a synapse from another neuron, essential for the transmission of electrical signals in the nervous system.

Synapse

The junction between two neurons where transmission of nerve impulses occurs through chemical messengers called neurotransmitters.

Synaptic Vesicles

Synaptic vesicles are small sacs in neurons that store neurotransmitters, which are chemical messengers released during synaptic transmission.

Synapse

The junction between two neurons or between a neuron and a muscle or gland, through which nerve impulses pass.