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PHGY 210 Lecture Notes - Lecture 15: Hemolymph, Arteriole, Closed System

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School
McGill University
Department
Physiology
Course
PHGY 210
Professor
Ann Wechsler

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Document Summary

Lecture fifteen- friday, february 5th, 2010 know what"s in the textbook for test: sections a-e of chapter 12 (pgs 359-425) Bringing fuel to cells (eg glucose from liver to brain) Bringing nutrients to the body (eg from intestine to the liver) Removal of waste products (eg carbon dioxide to lungs, ammonia to liver urea kidneys) waste products are toxic! Circulation of hormones (eg adrenaline to skeletal muscles) Thermoregulation (transport heat from where it"s produced to skin, where it can be released) frostbite: flow of blood to the skin shut down to keep heat in the body. No heart or vessels, doesn"t need them due to small size. Wastes are diffused out as well if they get hungry, pseudopods engulf in they need oxygen, it diffuses in from water surrounding it. Single cell of a rabbit ventricle is about 100 microns long. Therefore the scale of the cell is almost the same as the scale of the amoeba.

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Related Questions

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Please explain step by step

A typical nuclear reactor generates 1000MW (1000MJ/s) of electrical energy. In doing so, it produces 2000MW of "waste heat" that must be removed from the reactor to keep it from melting down. Many reactors are sited next to large bodies of water so that they can use the water for cooling. Consider a reactor where the intake water is at 18∘C. State regulations limit the temperature of the output water to 30∘C so as not to harm aquatic organisms. How many liters of cooling water has to be pumped through the reactor each minute?

A typical nuclear reactor generates 1000MW (1000 MJ/s) ofelectrical energy. In doing so, it produces 2000 MW of "waste heat"that must be removed from the reactor to keep it from melting down.Many reactors are sited next to large bodies of water so that theycan use the water for cooling. Consider a reactor where the intakewater is at 18 celcius . State regulations limit the temperature ofthe output water to 30 celcius so as not to harm aquaticorganisms.

How many liters of cooling water have to be pumped through thereactor each minute?