Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?

Rationale

Urea is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia.

Urea is a byproduct of protein metabolism and is formed in the liver from ammonia. When proteins are broken down, ammonia is generated, which is then converted into urea to be safely excreted from the body, including through sweat.

A (Sebum) YOUR ANSWER

Sebum is an oily substance produced by sebaceous glands, primarily to lubricate and protect the skin and hair. It is not related to protein breakdown or ammonia formation and does not play a role in the excretion process of metabolic waste.

B (Water) YOUR ANSWER

While sweat does contain water, it is not a direct byproduct of protein metabolism. Water is primarily lost through sweating to regulate body temperature and is not specifically excreted in response to the breakdown of proteins or formation of ammonia.

D (Lysozymes) YOUR ANSWER

Lysozymes are enzymes that help break down bacterial cell walls and are found in various bodily fluids, such as saliva and tears. They do not relate to protein metabolism or the excretion of ammonia and are not involved in the sweat production process.

Conclusion

In summary, urea serves as the main metabolic waste product derived from protein breakdown, facilitating the safe removal of ammonia from the body. While sweat contains water and other substances, only urea directly correlates with the metabolic process of protein degradation, making it the correct answer to the question regarding substances excreted by sweat glands.

Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?

Urea is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia.

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