Maintaining Water Balance in the Body Flashcards

1️⃣ Familiarise yourself with the flashcards:

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  • Make sure you understand the information on each card. If something’s unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

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  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

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Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

Why is water balance important for body cells?

Water balance is important because too much water can cause cells to swell and burst, while too little water can lead to cell death.

What are the main functions of the kidneys?

The kidneys filter blood, remove waste products, and control water balance.

What are the three main stages of kidney function?

The three stages are filtration, reabsorption and urine formation.

How does the hormone ADH regulate water balance?

ADH (anti-diuretic hormone) controls how much water is reabsorbed by the kidneys. More ADH leads to more water reabsorption, while less ADH leads to less water reabsorption.

What role do the lungs and skin play in water balance?

The lungs exhale water vapour, and the skin loses water, ions and urea in sweat.

What are the two treatment options for kidney failure?

The two treatment options are a kidney transplant or dialysis, which is a machine that removes waste and maintains water and salt balance in the blood.

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