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Summary Mastering Biology notes on Chapter 44 Animal Excretory Systems

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This document includes: kidneys, water conservation, osmolarity, ADH, aldosterone, nephron, urine, passive and active transport, loop of Henle, collecting duct, filtration, reabsorption, secretion, excretion, etc.

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Chapter 44 Animal excretory systems

Kidneys: maintain water and electrolyte balance
Antidiuretic hormone (ADH), aldosterone, and atrial natriuretic peptide (ANP) regulate
kidney function

Parts of the kidney

Conserve water by concentrating urine
- Osmolarity of blood 300 mOsm/L
- Osmolarity of urine 1,200 mOsm/L
Osmolarity: concentration of urine. Large value = concentrated, small value = dilute

ADH secretion, inadequate water intake, eating salty food, sweating => increases water
reabsorption
Aldosterone release, diarrhea, blood loss => increases Na+ and therefore water reabsorption
Diabetes insipidus, alcohol, caffeine => no increase in Na+ and water reabsorption

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Institution: University College Utrecht (UCU)
Study: Liberal Arts and Sciences
Course: BIO13 (BIO13)

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Uploaded on: August 20, 2024
Number of pages: 4
Written in: 2023/2024
Type: SUMMARY

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mastering biology notes
animal excretory systems
kidneys
water conservation
osmolarity
adh
aldosterone
nephron
urine
loop of henle
collecting duct
filtration
reabsorption
passive and active transport

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Summary Mastering Biology notes on Chapter 44 Animal Excretory Systems

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