Regulation of Water Balance (VCE SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What percentage of water does the human body contain?
What percentage of water does the human body contain?
55-60%
What is osmolality?
What is osmolality?
Total solute concentration in water
What happens to cells when extracellular fluid becomes hypertonic?
What happens to cells when extracellular fluid becomes hypertonic?
They crenate and shrink
Where are osmoreceptors primarily located?
Where are osmoreceptors primarily located?
Hypothalamus
What does ADH do to the collecting duct cells?
What does ADH do to the collecting duct cells?
Increases aquaporins
When ADH levels increase, what happens to urine?
When ADH levels increase, what happens to urine?
Becomes concentrated and dark
What does aldosterone primarily increase?
What does aldosterone primarily increase?
Sodium reabsorption
When water levels increase, what happens to ADH?
When water levels increase, what happens to ADH?
ADH secretion is suppressed
What percentage of blood plasma is water?
What percentage of blood plasma is water?
92%
In osmosis, water moves from which solution to which?
In osmosis, water moves from which solution to which?
Hypotonic to hypertonic