What Does It Mean to Say That a Signal Is

question 1

Multiple Choice

What does it mean to say that a signal is transduced?

• A) The signal enters the cell directly and binds to a receptor inside.
• B) The physical form of the signal changes from one form to another.
• C) The signal is amplified, such that even a single molecule evokes a large response.
• D) The signal triggers a sequence of phosphorylation events inside the cell.

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Definitions:

Sensation

The process by which our sensory receptors and nervous system receive and represent stimuli from our environment.

Skin Bruising

Discoloration and swelling in the skin due to trauma causing bleeding underneath.

Sebum

An oily substance produced by the sebaceous glands of the skin, which helps to keep the skin and hair moisturized and protected.

Perspire

The natural process of sweating, through which the body regulates its temperature and expels toxins.