When a Hormone Is Present in Excessive Levels, the Number

question 38

Multiple Choice

When a hormone is present in excessive levels, the number of target-cell receptors may decrease. This is called

• A) receptor recognition.
• B) circulating hormone.
• C) paracrine.
• D) up regulation.
• E) down regulation.

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Definitions:

Random Variable

An element with numerical values produced by the uncertainty of events.

Exponential Distribution

A constant probability distribution that models the time intervals between occurrences in a process where events happen continuously, independently, and at a steady average rate.

Density Function

A function that describes the likelihood of a random variable to take on a given value, often used in the context of continuous probability distributions.

F(x)

Generally refers to a function of x, which might denote a variety of mathematical relationships depending on the context.