Regarding Ions, Which of the Following Statements Is TRUE

question 9

Multiple Choice

Regarding ions, which of the following statements is TRUE?

• A)Ions are found only on the outside of the neuron until it is activated.
• B)Ions have a neutral charge, neither positive nor negative, until they are activated.
• C)When a neuron is inactive (or resting), more "plus" charges exist outside the neuron and more "minus" charges exist inside.
• D)Ions can be found only inside the neuron, which creates in your brain an electronic charge of about -10 millivolts.

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Definitions:

Protective Shells

Hard outer coverings that serve to shield organisms from environmental hazards and potential predators.

Camouflage

A method or pattern used by animals and military forces to blend with their environment to conceal themselves from predators or enemies.

Ambush

A surprise attack by people lying in wait in a concealed position.

Positive Feedback Loop

A process that occurs in a system where the output enhances or amplifies the initial condition, leading to an increase in the effect.