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How does a salmon survive?
Usually osmoregulation uses about 5% of metabolism.
Osmoregulation in extreme saline conditions: up to 30%
Key functions of osmoregulation
Get rid of nitrogeneous wasteWhat are the
advantages/disadvantages of types of waste?
Retain waterHow does the
kangaroo rat survive?
Functional Unit: Nephron99% of water is
reabsorbed!
1000 L pass through kidney to make 1.5L of urine each day!
Hormonal BalanceTwo systems:
What is the stimulus for each system?What hormones are involved?How do hormones cause a response?
Reviewing HormonesMini Case Study: Alcohol inhibits ADH. A
college student was binge drinking. The student passed out and friends just figured they’d let him “sleep it off.” Knowing what you know about the feedback and osmoregulation, why is this a bad choice?