Question
Biology Question on excretory products and their elimination
Renal threshold of glucose is said to be 180mg/100mL Glucose starts appearing in the urine when its blood level exceeds 180mg/100mL of blood
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
If both assertion and reason are true and reason is the correct explanation of assertion
Solution
Renal threshold of a substance is its highest concentration in the blood upto which it is totally reabsorbed from the glomerular filtrate. Renal threshold of glucose is about 180mg/100mL. Glucose is reabsorbed and does not appear in the urine as long as its blood level does not exceed 180mg/100mL