Biology osmoregulation (F.6)

2012-10-09 4:45 am
1. Explain why the urine output of a person increase if he drink some isometric
drink.(3 marks)


2. State and explain what will happen to the urine output and osmolarity if a person
drink some hypertonic drink. (5 marks)

(What will happen to ADH secretion and Aldosterone secretion?)

Thank you!!!

回答 (1)

2012-10-18 4:10 pm
✔ 最佳答案
1. Explain why the urine output of a person increase if he drink some isometric
drink.(3 marks)
→因為等張壓溶液不會改變血濃度,只會改變血壓。血壓上升後,抑制醛固酮分泌,因此改變尿量,不改變濃度。

2012-10-09 09:31:16 補充:
2. State and explain what will happen to the urine output and osmolarity if a person
drink some hypertonic drink. (5 marks)
→高張溶液造成ADH分泌,促進水份回收,故尿量減少,且濃度增加。

(What will happen to ADH secretion
→血液變濃時。
and Aldosterone secretion?)
→血壓變低時。

2012-10-18 08:10:02 補充:
1. Explain why the urine output of a person increase if he drink some isometric
drink.(3 marks)
→因為等張壓溶液不會改變血濃度,只會改變血壓。血壓上升後,抑制醛固酮分泌,因此改變尿量,不改變濃度。

2. State and explain what will happen to the urine output and osmolarity if a person
drink some hypertonic drink. (5 marks)
→高張溶液造成ADH分泌,促進水份回收,故尿量減少,且濃度增加。

(What will happen to ADH secretion
→血液變濃時。
and Aldosterone secretion?)
→血壓變低時。

如有疑議請補充!我可以針對您的問題再解說。
參考: 本人(教生物的)


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