Chapter 9

Chapter 9 - Chapter 9 Biological Productivity and Energy...

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Unformatted text preview: Chapter 9 Biological Productivity and Energy Flow How much can we grow? • How many bushels of wheat can be produced in a year? • What is maximum number of fishes that can be harvested from ocean? • How much production from forests? • Biomass – the total amount of organic matter on Earth or in any ecosystem • g/m 2 or metric tons/hectare • Biological Production- the capture of usable energy from the environment to produce organic compounds in which that energy in stored Two Types of Biological Production 1. Primary Production – Make their own organic matter from a source of energy and an inorganic compound – Carried out autotrophs • Ex) photosynthesis by plants – Light + water + CO 2 ==> glucose (sugar) 2. Secondary Production – Cannot make their own organic compounds and therefore must feed on other living things – Carried out by heterotrophs • Animals, fungi, many protists, some bacteria • The use of energy from organic matter by most heterotrophic and autotrophic...
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This note was uploaded on 05/27/2008 for the course ENSC 1001 taught by Professor Skelton during the Spring '08 term at GCSU.

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Chapter 9 - Chapter 9 Biological Productivity and Energy...

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