The kidneys (Edexcel GCSE Biology Combined Science): Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which blood vessel carries filtered blood away from the kidneys?
Which blood vessel carries filtered blood away from the kidneys?
Renal vein
Approximately how many nephrons does each kidney contain?
Approximately how many nephrons does each kidney contain?
Over one million
Where does filtration of blood occur in the nephron?
Where does filtration of blood occur in the nephron?
In the glomerulus
Why do proteins remain in the blood during filtration?
Why do proteins remain in the blood during filtration?
They are too big to pass through
How is all the filtered glucose reabsorbed back into the blood?
How is all the filtered glucose reabsorbed back into the blood?
By active transport
In which organ is urea produced?
In which organ is urea produced?
Liver
Why does the body break down excess amino acids?
Why does the body break down excess amino acids?
They cannot be stored
What happens when ADH levels are high?
What happens when ADH levels are high?
Small volumes of concentrated urine made
What pH range do the kidneys maintain in the blood?
What pH range do the kidneys maintain in the blood?
7.35-7.45
What three substances make up urine?
What three substances make up urine?
Water, urea, ions