Maintenance of Life

Maintenance of Life - Maintenance of Life: Functional...

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Maintenance of Life: Functional characteristics 1. Maintenance of boundaries: keeps the internal environment separate and distinct from the external environment. Cell membranes contain its contents while admitting needed substances and restricting the entry of unnecessary or harmful substances. 2. Movement: includes all activities promoted by the muscular system such as walking, running, movement of blood, food, urine rough the internal organs, etc. 3. Responsiveness: ability to sense change and respond to it. 4. Digestion: breakdown of ingested food into usable molecules. 5. Metabolism: all chemical reactions occurring within the cells. Depends on other systems and is regulated by the endocrine system. 6. Excretion: removal of unusable waste products. 7. Reproduction: formation of offspring. 8. Growth: increase in size. Survival Needs: The ultimate goal of nearly all body systems is to maintain life. Requires several factors acting together for its persistence. 1.
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This note was uploaded on 11/22/2011 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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Maintenance of Life - Maintenance of Life: Functional...

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