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30 Cards in this Set
- Front
- Back
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What is the basic unit of all living things?
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cell
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Where do new living cells come from?
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from reproduction of existing cells
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What inside cells carries out cell functions?
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organelles
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What is the jellylike fluid in a cell called?
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cytoplasm
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What is the cell boss or control center of the cell called?
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nucleus
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What shape are animal cells
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Varied, often rounded...no cell wall...only a membrane.
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what is the shape of plant cells?
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rectangular...rigid cell wall surrounds the cell membrane
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Maintaining a stable internal environment
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Homeostasis
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Movement of water through a selectively permeable membrane from higher concentration to lower concentration
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osmosis
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random movement of molecules from higher concentration to lower concentration
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diffusion
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Pressure of wateragainst a plant cell wall.
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Turgor pressure
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Division of the nucleus of a cell
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Mitosis
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Process by which plants use light, water and carbon dioxide to produce glucose and Oxygen.
CO2 + H2O -> C6H1206 + 02 |
Photosynthesis
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The opposite of photosynthesis, whereby cells use glucose and oxygen to produce energy and give off carbon dioxide and water.
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cellular respiration
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A trait an organism inherits from its parents
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inherited trait
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The part of a chromosome that governs a particular trait
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gene
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A diagram used to predict outcomes of genetic combinations
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punnett square
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A trait that appears if it inherits the gene for that trait from either parent...Shown by a capital letter
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Dominant trait
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A trait that appears only if it is inherited from both parents...shown by a lower case letter
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Recessive Trait
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A change in a gene caused by environmental damage or random error
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genetic mutation
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When the environment changes, such as the climate becoming colder or dryer
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Environmental change
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Natural Selection
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Organisms with favorable heredity traits that are more likely to survive and reproduce than other organisms
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Group of similar organisms that can have children together
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species
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Population
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all the members of a species living in an area
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Such factors as amount of sunlight, temperature, soil, moisture
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nonliving environmental factors
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All the organisms found in a single ecosystem
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community
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Temperate forests, tropical rain forest, grassland, desert, tundra
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Biomes,or land ecosystems
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Ecological Succession
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Drastic events...such as fire, flood, tornadoes and hurricanes bring a series of changes to an ecosystem
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The gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another
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succession
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Succession that begins in a place without any soil
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primary succession
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