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36 Cards in this Set
- Front
- Back
microscope
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instrument that makes small objects look larger
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ribosomes
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produce proteins
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cells
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basic unit of structure & function in living things
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nucleolus
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where ribosomes are made
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cell theory
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1. all living things are composed of cells
2. cells are basic unit of structure & function in living things 3. all cells come from other cells |
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mitochondria
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where most energy is produced
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chloroplasts
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capture sunlight's energy and use it to produce food for cell
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2 kinds of nucleic acids
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DNA & RNA
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proteins
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large organic molecules made of carbon, hydrogen, oxygen, and sometimes sulfer
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resolution
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ability to clearly distinguish individual parts of object
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golgi bodies
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send/recieve materials from one part of cell to another
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nucleus
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"brain" of cell; directs all activities
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cell wall
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rigid layer of nonliving material surrounding cells of plants and some other organisms
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chromatin
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contain genetic material
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organic compounds
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compounds w/ carbon
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carbohydrate
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energy rich organic compound made of carbon, oxygen, hydrogen
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inorganic compounds
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compounds w/out carbon
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compound
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two or more chemically combined elements
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magnification
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ability to make things look larger than they are
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element
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any substance that can't be broken down into simpler substances
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selectively permeable
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some substances can pass thru, some cant
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cell membrane
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inside cell wall; boundary seperating cell from enviornment
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diffusion
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process by which molecules move from area of higher concentration to area of lower concentration
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amino acids
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make protein molecules; 20 main ones (like alphabet letters & words)
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osmosis
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diffusion of water molecules thru selectively permeable membrane
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endoplasmic reticulum
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series of passageways that carry materials from one part of cell to another
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diffusion
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process by which molecules move from area of higher concentration to area of lower concentration
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organelles
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smaller structures inside cells that carry out specific functions w/in cell
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nucleic acids
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large organic molecules made of carbon, oxygen, hydrogen, nitrogen, and phosphorus; contain instruction cell needs to carry out daily functions of life
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active transport
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movement of materials thru a cell membrane using energy
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lysosome
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contain chemicals to break down large food particles into smaller ones
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atom
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smallest unit of an element
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molecule
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smallest unit of most compounds
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lipid
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energy rich organic compounds made of carbon, hydrogen, oxygen w/ more energy than carbs
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passive transport
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movement of materials thru cell membrane w/out using energy
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vacuole
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water filled sac where waste/food is stored in cell
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