Which of the Following Is Not a True Description of the Transduction

question 31

Multiple Choice

Which of the following is not a true description of the transduction of a stimulus by sensory receptors into signals in the form of action potentials?

• A)Pressure from sound waves bends cilia in specialized hearing cells,causing ion channels in the plasma membrane to open or close and resulting in a change in ion flow that depolarizes or hyperpolarizes the membrane.
• B)Light can cause some molecules to change conformation,which then triggers a cascade of events leading to a change in the cell's membrane.
• C)Molecules in the air travel up the nose to the mucous membranes,where they bend cilia in hair cells,open ion channels,and cause depolarization of the cell membrane.
• D)Na⁺ and H⁺ can flow through sodium and proton channels respectively to directly depolarize the cell membranes of some taste cells,causing the salty or sour taste sensations.
• E)Many types of molecules can bind to a variety of receptors in taste cells,leading to depolarization of the cell membrane and causing the taste sensation of bitterness.

Recognize the impact of external pressures on sleep patterns and disorders.

Appreciate the importance of sleep for physical and psychological health.

Understand the characteristics and symptoms of narcolepsy.

Identify and differentiate between various parasomnias.

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Definitions:

Axon

A part of a neuron that transmits electrical impulses away from the neuron's cell body to other neurons or muscles.

Neuron

A nerve cell that is the basic building block of the nervous system, responsible for transmitting information throughout the body.

Neurons

Cells specialized in sending nerve messages, forming the core structure of the nervous system.

Synapse

The junction between two neurons or between a neuron and a muscle where electrical or chemical signals are transmitted from one cell to another.