Excretion as an Example of Homeostatic Control (OCR A-Level Biology A): Flashcards
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Renal threshold for glucose
Renal threshold for glucose
180 mg/100 cm³ blood
Glucose in urine indicates
Glucose in urine indicates
Diabetes mellitus
Albumin relative molecular mass (RMM)
Albumin relative molecular mass (RMM)
69,000
Protein in urine suggests
Protein in urine suggests
Kidney damage, high BP, infection, or pregnancy
Nitrite ions in urine indicate
Nitrite ions in urine indicate
Bacterial infection in urinary tract
Hormone detected in pregnancy tests
Hormone detected in pregnancy tests
Human chorionic gonadotrophin (hCG)
Dangerous GFR threshold
Dangerous GFR threshold
Below 60 cm³/min
Potassium accumulation causes
Potassium accumulation causes
Cardiac arrhythmia, muscle weakness, cardiac arrest risk
Urea content in dialysate
Urea content in dialysate
None (no urea present)
Counter-current flow purpose in dialysis
Counter-current flow purpose in dialysis
Maintains concentration gradient throughout dialyser