Biology GCSE
urine volume and concentration
What urine volume and concentration means in Biology GCSE, as defined for OCR.
Definition of urine volume and concentration
Check what you remember
Read the wording for your board, then hide it and explain urine volume and concentration in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
During dehydration or heavy sweating a small volume of concentrated urine is excreted to conserve water, while high fluid intake produces a large volume of dilute urine to eliminate excess water.
Topics that use urine volume and concentration
- Maintaining internal environments (OCR GCSE)
Related terms
- antagonistic hormones
- antidiuretic hormone
- blood glucose regulation
- Bowman's capsule and ultrafiltration
- collecting duct permeability
- dehydration
- Glucagon
- glycogen
Using urine volume and concentration in the exam
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