An Action Potential in a Neuronal Membrane Differs from a Graded

question 83

Multiple Choice

An action potential in a neuronal membrane differs from a graded potential in that:

• A) an action potential requires the opening of Ca²⁺ channels, whereas a graded potential does not.
• B) an action potential is propagated without decrement, whereas a graded potential decrements with distance.
• C) an action potential has a threshold, whereas a graded potential is an all-or-none phenomenon.
• D) movement of Na⁺ and K⁺ across cell membranes mediate action potentials, while graded potentials do not involve movement of Na⁺ and K⁺.
• E) action potentials vary in size with the size of a stimulus, while graded potentials do not.

Comprehend the prevalence and prevention of sexually transmitted infections (STIs) and their impact on health during early adulthood.

Understand various medical conditions affecting reproductive health and their symptoms.

Recognize legal and societal implications of rape and acquaintance rape.

Identify signs and regulations around workplace sexual harassment.

---

Definitions:

Etruscan Iconography

Visual symbols and motifs used in the art of the Etruscans, an ancient civilization of Italy, conveying cultural, religious, and societal ideals.

Regeneration

The process of renewal, growth, or restoration, often referred to in biological contexts as well as metaphorically in cultural or spiritual terms.

Tomb of Hunting and Fishing

An Etruscan tomb located in Tarquinia, Italy, famous for its vibrant frescoes depicting scenes of hunting and fishing from the 6th century BCE.

Joy of Life

A concept or theme in art and literature that celebrates the pleasure and beauty of being alive, often depicted through vibrant, lively scenes.