water potential of blood
What water potential of blood means in Biology A-Level, as defined for AQA.
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Reference: AQA
The factor being controlled in osmoregulation, measured in kPa, where pure water is 0 kPa and any solution is negative, so more concentrated plasma has a lower, more negative water potential.
Glucose is a solute, so it contributes to this, and a high concentration makes it more negative than that of the cells.
Topics that use water potential of blood
- Control of blood water potential (A-level only) (AQA A-Level)
- Principles of homeostasis and negative feedback (A-level only) (AQA A-Level)
Related terms
- amplification of a change
- Aquaporins
- corrective response
- degree of control
- Denaturation by temperature and pH change
- hypothalamus
- Hypothalamus and posterior pituitary
- insulin and glucagon
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