IB Biology Topic 11.3 (HL): The kidney & osmoregulation - Part 1

This video first reviews the concept of homeostasis, and relates this to osmoregulatory and osmoconformers. It then delves into how fish, mammals, and birds excrete their nitrogenous waste. This is followed by a detailed explanation of how this occurs in arthropods via their Malpighian tubules. Then, the foundation of how this occurs in mammals is set up by introducing kidney structure. The video finishes by introducing nephron structure and function, as well as how this impacts blood composition of the renal artery and vein.

00:00 Introduction
00:22 Homeostasis
00:44 Types of osmoregulation
01:17 Excretion of nitrogenous waste
02:39 Arthropod structure
03:18 Malpighian tubule osmoregulation
04:06 Kidney structure
04:55 Nephron structure
06:01 Preview finished!

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