The Absolute Refractory Period Occurs Because

question 169

Multiple Choice

The absolute refractory period occurs because 

• A)the cell is hyperpolarized, requiring a larger than normal stimulus in order to form another action potential. 
• B) it takes time for the sodium-potassium pumps to return ion concentrations to the normal resting state.​ 
• C) only one action potential at a time can travel the length of an axon.​ 
• D) sodium channels cannot reopen until the cell regains its resting potential.​

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Definitions:

Polyunsaturated Fats

A type of dietary fat found in foods like nuts, seeds, and fish; known for its potential heart health benefits.

Partially Hydrogenated

Refers to oils that have been processed to convert unsaturated fats into saturated fats, often increasing the shelf-life of food products but linked to health risks like heart disease.

Vegetarian Diets

A nutritional plan that excludes meat, fish, and poultry, focusing mainly on plant-based foods.

Saturated Fat

A type of dietary fat found in animal products and certain plant oils, often solid at room temperature, linked to elevated blood cholesterol levels.