The table lists descriptions of excretory or regulatory processes in the human body.
Complete the table by giving the correct organ for each description.
The first one has been done for you.
| Process / Description | Organ |
|---|---|
| Excretes carbon dioxide and water vapour during exhalation | lungs |
| Site of deamination of excess amino acids to produce urea | |
| Produces and excretes sweat containing water, ions, and trace urea | |
| Performs ultrafiltration and selective reabsorption to produce urine | |
| Temporarily stores urine prior to excretion |
Describe the pathway taken by urea as it is filtered from the blood and moves through the different regions of a nephron. Refer to the specific tubular regions and the associated blood vessels in your answer.
17 exam-style questions on Edexcel IGCSE Biology Excretion. Each one has a worked solution and a mark scheme showing where the marks go.