The table shows the presence of two substances in samples from a healthy person.
Table
| Sample | Glucose | Large plasma proteins |
|---|---|---|
| P | Present | Present |
| Q | Present | Absent |
| R | Absent | Absent |
Which identification is correct?
P is blood plasma, Q is urine, R is newly formed filtrate
P is newly formed filtrate, Q is blood plasma, R is urine
P is blood plasma, Q is newly formed filtrate, R is urine
P is urine, Q is newly formed filtrate, R is blood plasma
45 exam-style questions on Edexcel GCSE Biology 7.4 Blood glucose and the urinary system, covering 7.4.1 Insulin and blood glucose control, 7.4.2 Glucagon and blood glucose regulation, 7.4.3 Type 1 and type 2 diabetes, 7.4.4 Structure of the urinary system, 7.4.5 Structure and function of the nephron, 7.4.6 ADH and water regulation, 7.4.7 Treatments for kidney failure, and 7.4.8 Production of urea in the liver. Each one has a worked solution and a mark scheme showing where the marks go.