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Bio symester 1
all the vocab that had to b defined from the final review
| term | definition |
|---|---|
| product | element or compound produced by a chemical reaction |
| reactant | element or compound that enters into a chemcial reaction |
| ionic bond | bond formed when 1 or more electrons are transferred from 1 atom to another |
| covalent bond | bond formed by the sharing of electrons between atoms |
| capillary action | tendency f water to rise in a thin tube |
| cohesion | attaction between molecules of the same substance |
| adhesion | attraction between molecules of different substances; in plants, attraction between unlike molecules |
| solute | substance that is dissolved in a solvent to make a solution |
| solvent | substance in which a solute is dissolved to form a solution |
| buffer | weak acid or base that can react with strong acids or bases to help prevent sharp, sudden changes in PH |
| decomposers | organisms that break down and obtai energy from dead organic matter |
| autotrophs | organisms that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds, producers |
| detritivores | organisms that feed on plant and animal remains and other dead matter |
| producers | organisms that can capture energy from sunlight or chemicals and use it to produces their own food from inorganic compounds, autotrophs |
| herbivore | organism that obtains energy by eating only plants |
| omnivore | organism that obtains energy by eating both plants and animals |
| heterotroph | organism that obtains energy from the food it consumes |
| consumer | organism that obtains energy from the food it consumes |
| community | assemblage of different populations that live together in a defined area |
| ecosystem | collection of all the organisms that live in a particular place together w/ their nonliving environment |
| population | group of individuals of the same species that live in the same area |
| biosphere | part of Earthi in which life exists including land, water and air or atmosphere |
| biomass | total amount of living tissue within a given tropic level |
| biome | group of ecosystems that have the same climate and dominant communities |
| predation | interaction in which 1 organism captures and feeds on another organism |
| competition | when popluations become crowded, organisms compete w/ one another for essesntials to life |
| DNA | deoxyribonucleic acid, what carries the directions for inheritance |
| ATP | adenosine triphosphate, one of the principal chemical compounds that living things use to store and release energy |
| activation energy | energy neede to get a reaction started |
| enzyme | protein that acts as a biological catalyst |
| hereozygous | an organism that has 2 different alleles for the same trait |
| homozygous | an organism that has 2 identical alleles for the same trait |
| monomer | small unit that can join together with other small units to form polymers |
| polymer | large compounds formed from combinations of many monomers |
| catalyst | speeds up chemical reactions, lower activation energy |
| biotic | living |
| abiotic | nonliving |
| niche | food sourse and habitat |
| mutualism | both species benefit |
| commensalism | one benefits, the other is unaffected |
| parasitism | one benefits and one is harmed |
| density-dependent factors | required certain numbers in the population (disease, overcrowding, competition, etc.) |
| density-independent factors | happen despite the numbers in popualtion (fires, floods, basically anything to do with the weather) |
| prokaryote | bacteria, no organelles, only one celled organisms |
| eukaryote | have nucleus and organelles, all non-bacteria living cells |
| ER | (cell part) where the lipids, proteins and other exports are assembled |
| lysosome | (cell part) breaks down things |
| vacuoles | (cell part) stores materials that are not being used |
| chloroplast | (cell part) capture sunlight enregy and use it for photosynthesis |
| nucleolus | (cell part) where the assembly of ribosomes begins |
Created by:
Kellameister623
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