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Life Science Terms

asexual reproduction type of reproduction that forms a new organism that is identical to its parent
carrying capacity largest population an area can support
cell basic unit of life
cell membrane the organelle that controls what enters and leaves the cell
cell wall a rigid structure found outside plant cells and some other single-celled organisms
chloroplast green organelle found in plants that is the site for photosynthesis
chromosome a structure made of DNA that contains genes
consumer an organism that obtains energy by eating other organisms
dependent variable the thing being measured in an experiment
diffusion process by which molecules move from an area of higher concentration to an area of lower concentration
dominant a trait that is always expressed when present in the organism
energy pyramid a diagram that shows the flow of energy from producers to consumers in a food web
eukaryotic cell a cell with membrane-bound structures
function what something does (its job)
gene a segment of DNA that determines a specific trait
independent variable the thing changed by the person doing the experiment
kingdom first and largest category used to classify organisms
mitochondria cell organelle where glucose is broken down to release energy
nucleus cell organelle that contains DNA and controls most cell functions
organelle a tiny cell structure that carries out a specific function within the cell
osmosis process by which water molecules move from an area of higher concentration to an area of lower concentration through a cell membrane
photosynthesis process by which plants and some other organisms use water, carbon dioxide, and sunlight to make food (glucose)
producer any organism that can make its own food
prokaryotic cell a cell without any membrane-bound structures
recessive a trait that is only expressed when the dominant trait is absent
respiration process by which producers and consumers release energy stored in sugar molecules
sexual reproduction type of reproduction where two cells join to form a new organism, offspring is not identical to either parent cell
species group of similar organisms that can reproduce among themselves and produce fertile offspring
structure what something looks like (its form)
succession natural, gradual changes in the types of species that live in an area
Created by: regshorter