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25 Cards in this Set
- Front
- Back
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Technology
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The application of science for practical purposes
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Compound LIght Microscope
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An instrument that magnifies small objects so that they can be seen easily by using two or more lenses: a tube, a stage and a light.
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Electron Microscopes
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A microscope that focuses a beam of electrons to magnify objects. Living things cannot be viewed with these.
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Scanning Electron Microscope (SEM)
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Electrons bounce off the surface of the specimen and produce a 3D image.
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Transmission Electron Microscope (TEM)
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Electrons pas through the specimen and produce a flat image.
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Area
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Measure the size of a surface or a region
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Volume
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Measure the size of a body or region in 3D space. LIquid: liters, solid objects, cubic meters or centimeters
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Mass
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Measure of the amount of matter in an object. Kilogram (kg is the basic unit for mass.
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Temperature
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is a measure of how hot or cold something is. Measured in degrees Farenheit or Celsius
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stimulus
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A change that affects the activity of an organism
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Homeostasis
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Maintenance of a stable internal environment
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Sexual reproduction
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reproduction in which sex cells from two parents unite, producing offspring that share traits from both parents
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Asexual reproduction
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Does not involve the union of sex cells and in which one parents produces offspring identical to itself
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Heredity
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Passing of genetic traits from parent to offspring
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Metabolism
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Sum of all chemical processes that occur in an organism
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Producer
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Organism that can make its own food by using energy from its surroundings
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Consumer
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organism that eats other organisms or organic matter
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Decomposer
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organism that gets energy by breaking down the remains of dead organisms or animal wastes & consuming/absorbing the nutrients
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Necessities of life
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Water, Air, Food, Shelter
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Proteins
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molecule made up of amino acids that is needed to build and repair body structures and regulate processes int he body
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Carbohydrate
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class of energy giving nutrients that includes sugars, starches and fiber; contains carbon, hydrogen and oxygen
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Lipid
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A type of biochemical that does not dissolve in water; fats & steroids
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Phospholipid
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A lipid that contains phosphorus and that is a structural component in cell membranes
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ATP
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a molecule that acts as the main energy source for cell processes
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Nucleic acid
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a molecule made up of subunits called nucleotides
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