136583
Description
Flashcards by eimearkelly3, updated more than 1 year ago
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Created by eimearkelly3
over 11 years ago
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| Question | Answer |
| Metabolism | The sum of all the chemical reactions in an organism. |
| What chemicals control metabolic reactions? | Enzymes |
| High metabolism | Fast-acting e.g. mice and rabbits |
| Low metabolic rate | Slow-acting e.g. koalas |
| Living things can arise from non-living matter - Aristotle | Spontaneous generation e.g. maggots on rotting meat and frogs from dried mud |
| Continuity of life | Living things arise from other living things of the same type. This is also called biogenisis. |
| Life | The possession of all five of the characteristics of life - Sensitivity, nutrition, organisation, reproduction, excretion SNORE |
| Organisation | Living things are composed of cells, tissues, organs, and organ systems. |
| Levels of organisation | Cell, tissue, organ, organ system, organism, population e.g. cheek cell, lining of cheek, stomach, digestive system, individual human, all the people in an area |
| Nutrition | The way in which an organism obtains and uses food |
| Excretion | The removal of waste products of metabolism from the body |
| Response/sensitivity | The way in which organisms react to stimuli in their environment e.g. light |
| Reproduction | The production of new individuals to prevent the extinction of the species. |
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