Homeostasis+and+Excretion

=__ IB DEFINITIONS YOU MUST KNOW! __= Excretion This is a general term for the discharge of substances from the body. Release of an absorbed or endogenous substance or of a waste product, in urine, faeces, or other products normally leaving the body. Excretion of most chemical compunds from the body occurs mainly through the kidney and the gut, although volatile compunds may be largely eliminated by exhalation. Excretion by perspiration and through hair and nails may also occur. Excretion by the gastrointestinal tract may take place by various routes such as the bile, the shedding of intestinal cells and transport through the intestinal mucosa. Osmoregulation The control of the water balance of the blood, tissue, or cytoplasm of a living organism.

Here's a video of the kidney and nephron explained thoroughly. It's long (a little over 18 minutes) but it helps :) []

Remove File

= = = = ==

Okay now, the rest of the links to all of the worksheets will be up later, but I'll wait to post the answers so you guys can't cheat on your homework!! Have fun with your homework and worksheets!! I promise you'll thank me later! :)