Microaerophiles

question 13

Multiple Choice

Microaerophiles:

• A)grow best when the environment has a small amount of carbon dioxide.
• B)grow best when the environment has a small amount of free oxygen.
• C)need a high concentration of carbon dioxide.
• D)need a high concentration of oxygen.

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Definitions:

Antagonist

A substance that impedes or counteracts the action of another, especially a muscle that opposes the action of another muscle.

Synaptic Knob

The part of a neuron that releases neurotransmitters to transmit signals to another neuron or muscle cell.

Neuromuscular Junction

The synapse or junction where a motor neuron transmits a signal to a muscle fiber causing it to contract.

Muscle Fiber

An individual muscle cell, long and cylindrical, which contracts to produce movement.