Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 2: Excretion - Question 21

The diagram shows a kidney. Parts of the kidney are labelled with letters A to D. Use the diagram to identify where the following processes occur. Write letters A–D in the table.

| Process | Letter |
|---|---|
| Blood enters the inner part of the kidney where it is filtered. | ___ |
| Urine is sent to the bladder. | ___ |
| Unfiltered blood enters the kidney. | ___ |
| The filtered blood is sent back into the bloodstream. | ___ |