Human Physiology - Excretory Products

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Q1. What is the primary excretory product of human metabolism? (2021)

Solution:

Urea is the primary excretory product formed from the breakdown of proteins in the liver and is excreted by the kidneys.

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Q2. What is the primary excretory product of humans? (2021)

Solution:

Urea is the primary nitrogenous waste product excreted by humans, formed in the liver from ammonia and carbon dioxide.

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Q3. What is the pH range of normal human urine? (2022)

Solution:

Normal human urine typically has a pH range of 6.0 to 7.0, which can vary based on diet and health.

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Q4. Which of the following is a waste product of protein metabolism? (2019)

Solution:

Urea is a waste product formed from the breakdown of proteins and is excreted in urine.

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Q5. What is the normal pH range of human urine? (2022)

Solution:

The normal pH range of human urine is typically between 6.0 and 7.0, indicating it is slightly acidic.

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Q6. Which part of the nephron is responsible for the majority of reabsorption? (2023)

Solution:

The proximal convoluted tubule is responsible for the majority of reabsorption of water, ions, and nutrients.

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Q7. What is the effect of high protein intake on urea production? (2022)

Solution:

High protein intake increases the production of urea as more amino acids are metabolized.

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Q8. What is the primary function of the renal pelvis? (2022)

Solution:

The renal pelvis collects urine from the collecting ducts and transports it to the ureter.

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Q9. What is the main nitrogenous waste product in birds and reptiles? (2022)

Solution:

Birds and reptiles primarily excrete uric acid, which is less toxic and conserves water compared to urea.

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Q10. What is the main excretory product of purine metabolism? (2022)

Solution:

Uric acid is the main excretory product of purine metabolism in humans.