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3.6 Organisms respond to changes in their internal and external environments
Quick questions on Control of blood water potential: the nephron and ADH - AQA A-Level Biology
7short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is the role of the kidney?Show answer
The kidneys carry out two key roles:
What is structure of the nephron?Show answer
A nephron is the functional unit of the kidney. Its parts, in order, are:
What is ultrafiltration?Show answer
In the Bowman's capsule, ultrafiltration produces a filtrate from the blood:
What is control of blood water potential by ADH?Show answer
The water potential of the blood is controlled by antidiuretic hormone (ADH) through negative feedback.
What is q1?Show answer
Explain how ultrafiltration occurs in the Bowman's capsule. [3 marks]
What is q2?Show answer
Explain how the loop of Henle enables the production of concentrated urine. [4 marks]
What is q3?Show answer
Describe how the body responds to a fall in blood water potential. [4 marks]
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