PPT-H.6 GAS EXCHANGE Occurs by bulk flow of gasses and by diffusion of gasses through tissue

H61 Define partial pressure Daltons Law of partial pressure states that the total pressure exerted by a mixture of gasses is the sum of the pressures exerted independently by each gas in a mixture. 1 The demand depends upon the application but the following examples offers a useful illustration. Typically, and 99.9 may be required in applications such as laser cutting, heat treatment, electroni Gas exchange and circulation in fishes. Open and closed circulatory systems: fish and insect. Gas exchange: acquiring oxygen and getting rid of carbon dioxide. Smaller . animals can exchange . these gases at the body surface . Kinetic molecular theory. Pressure. Introduction. Earth’s atmosphere is a gaseous solution composed of mostly nitrogen and oxygen. The atmosphere is important for life on earth. Provides . a medium for many chemical reactions with waste products. By Myre and William. Gasses. Gasses are particles that float from earth to the . atmosphere and its particles go around to fill every place in a container and when the . they are open they will go to every space around.. Courtney. Good Thing/ Bad Thing. Traps heat so that it doesn’t get lost in space. Keeps oxygen in our atmosphere. Greenhouse gasses absorb infrared radiation (protects us from getting burnt up by the radiation from the sun). 13.3 Gas exchange in fish. Learning outcomes. Students should be able to understand the following:. The structure of fish gills and how water is passed along them. The difference between parallel flow and . An Ideal Gas. All gas laws are based on the assumption that gasses behave “ideally”. An . i. deal gas:. Moves in all directions and in straight lines. There is no loss in kinetic energy in collisions. Fluids. Gasses. Liquids. Ideal Gas. Gasses with particles that undergo . elastic. collisions. Only exist under certain conditions. Low heat. Low pressure. Pressure. Pressure. Barometer. Boyles Law. Boyle’s law shows the kinetic theory mathematically. . Air is a fluid (but not a liquid) that behaves similarly to water. We see pressure changes in the subsurface due to barometric pressure and other causes.. We see gas flow in the subsurface due to advection and diffusion due to pressure and concentration gradients, respectively. Gas exchange in humans – Why is this not an efficient system for fish??????. Why do fish gills need to be so efficient?. Oxygen not very soluble in water. Surface water = 5 . ppm. . cf. 210,000 . . THE OVERVIEW OF A COSMIC CLOUD. According to Merriam Webster:. Neb-u-la :. noun: \ ‘ne-bye-la. 1: any of numerous clouds of gas or dust in interstellar Space. What is a Nebula?. Nebulas are large clouds made of interstellar gas and dust . Lab Materials Set Up. The Greenhouse Effect. Good. . Bad. Global Warming. Good. . Bad. Water Vapor. Carbon Dioxide. Methane. Nitrous Oxide. The Greenhouse Gases. Carbon Dioxide (CO. 2. ). -Sources. Mixing. a process that results in a randomization of dissimilar particles within a system. . A-. Flow characteristics. Depending upon relationship between shear rate and the applied shear stress, the fluids may be divided into:. Learning outcomes. Students should be able to understand the following:. The structure of fish gills and how water is passed along them. The difference between parallel flow and . countercurrent. flow.