An Increase to 0

question 15

Multiple Choice

An increase to 0.5% carbon dioxide in the air (from the normal 0.03%) makes us breathe 10 times faster.Which alteration in homeostatic conditions in the blood would limit how long you can hold your breath?

• A) Lack of carbon dioxide raises the pH.
• B) Lack of oxygen raises the pH.
• C) Buildup of carbon dioxide lowers the pH.
• D) Buildup of oxygen lowers the pH.
• E) Buildup of nitrogen raises the pH.

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Definitions:

Neurons

Basic working units of the brain, specialized cells conducting nerve impulses for communication between different parts of the body.

Structural Support

The elements or components in construction or architecture that offer the necessary strength and stability to a building or structure.

Presynaptic Neuron

A neuron that sends a signal to a neighboring neuron across a synapse, typically releasing neurotransmitters.

Neurotransmitter

Chemicals released by neurons that transmit signals across a synapse from one neuron to another, playing key roles in shaping everyday functions and behaviors.