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Chapter 8: Problem 4

True or false? Leptin is a neurotransmitter that is associated with reduced feelings of hunger, while ghrelin is a neurotransmitter that is associated with increased feelings of hunger.

Short Answer

Expert verified
True. Leptin is associated with reduced feelings of hunger as it signals the brain that the body has enough energy stores, while ghrelin is associated with increased feelings of hunger as it stimulates appetite and promotes food intake.

Step by step solution

01

Understand the role of leptin

Leptin is a hormone predominantly made by the adipose (fat) cells and is responsible for managing appetite and energy balance in the body. Leptin's primary function is to signal to the brain when the body has enough energy stores in the form of fat. When there are sufficient fat stores, leptin signals to the brain that the body is not hungry, and thus, it helps to reduce appetite and food intake.
02

Understand the role of ghrelin

Ghrelin, on the other hand, is known as the "hunger hormone" and is mainly produced in the stomach. It has the opposite function of leptin. Ghrelin acts on the brain to stimulate appetite and promote food intake. When the stomach is empty, ghrelin is released into the bloodstream and travels to the brain to signal hunger.
03

Compare leptin and ghrelin functions

Based on the understanding of leptin and ghrelin neurotransmitters, we can infer that leptin is indeed associated with reduced feelings of hunger, while ghrelin is associated with increased feelings of hunger.
04

Determine the validity of the statement

Given the information about leptin and ghrelin neurotransmitters, we can conclude that the statement "Leptin is a neurotransmitter that is associated with reduced feelings of hunger, while ghrelin is a neurotransmitter that is associated with increased feelings of hunger" is true.

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