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Cell Biology Mr. B
Cell biology terms, chapter 1
| Question | Answer |
|---|---|
| Nature | everything in the universe except what humans have manufactured. |
| atoms | fundamental biulding blocks of all substances, living and non living |
| molecules | atoms joining with other atoms |
| organism | individual that consists of one of more cells |
| population | group of individuals of the same kind of organism, or species, living in a specified area |
| community | consists of all populations of all species in a specified area |
| ecosystem | a community interacting with its physical and chemical enviroment |
| biosphere | encompasses all regions of earth's crust, waters, and atmosphere in which organisms live |
| emergent property | characteristic of a system that does not appear in any of its component parts |
| energy | capacity to do work |
| nutrient | type of atom or molecule that has an essiental role in growth and survival and that an organism cannot make for itself |
| producers | acquire energy and simple raw materials from enviromental sources and make their own food |
| photosynthesis | sunlight energy to make sugars from carbon dioxide and water |
| consumers | cannot make their own food; they get energy and nutrients indirectly by eating producers and other organisms |
| receptor | a molecule or cellular structure that responds to a specific form of stimulation |
| DNA | a nucleic acid, is the signature molecule of life |
| traits | distinct features |
| inheritance | transmission of DNA from parents to offspring |
| Reproduction | refers to actual mechanisms by which parents transmit DNA to offspring |
| development | the orderly transformation of the first cell of a new individual into an adult |
| species | kind of organism |
| genus | group of species that share a unique set of features |
| bacteria | single cell organisms |
| Archaeans | single cell organisms |
| eukaryotes | start off life with a nucleus |
| protists | simplesst kind of eukaryote. |
| fungi | mushrooms |
| plants | Multicelled species |
| animals | multicelled consumers that ingest tissues or juices or other organisms |
| mutations | small scale changes in DNA |
| adaptive trait | better chance of surviving and passing its DNA to offspring |
| natural selection | different survival and reproduction of individuals in a populations that different in the details of their heritable traits |
| evolution | simple means change in a line of descent |
Created by:
meganroosee
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