K325 / 2027

Excretion in humans

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Which is an example of excretion rather than egestion?

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Which structure carries urine from the bladder to the outside?

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Which set normally enters Bowman's capsule during ultrafiltration?

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Glucose is present in initial filtrate but normally absent from final urine. Which process explains this?

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Why do red blood cells normally stay on the blood side of a dialyser?

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Question 1 of 4

Follow nitrogen to the outside

Explain why excess nitrogen from amino acids must be removed. Trace urea from its formation to the outside, naming the kidney, ureter, bladder and urethra roles. Explain why this is different from egestion.

Separate waste formation, blood transport, urine formation, storage and release.

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