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Chapter 18: Problem 3

Salty foods activate the taste cells by _____. a. exciting the taste cell directly b. causing hydrogen ions to enter the cell c. causing sodium channels to close d. binding directly to the receptors

Short Answer

Expert verified
Answer: Salty foods activate taste cells by binding directly to the receptors.

Step by step solution

01

Analyze the given options

Go through each of the given options and understand if the statements relate to the activation of taste cells by salty foods.
02

Understand the effect of salty foods on taste cells

Salty foods contain sodium ions which trigger the taste cells responsible for sensing a salty taste. This happens due to the sodium ions binding to specific receptors on the taste cells.
03

Discard irrelevant options

After understanding the effect of salty foods on taste cells, discard the options which do not represent the correct mechanism. In this case, options a, b, and c are not correct.
04

Select the correct option

Since option d accurately describes how salty foods activate taste cells, the correct answer is: d. binding directly to the receptors

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