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Entire Chapter 1


How do you find total magnification on a microscope? Multiply Ocular lens number by objective lens number
What is resolution? how clear an image is
What is the purpose of a microscope? (for this chapter) people discovered cells
What are the 3 parts of cell theory? 1)All living things are made of 1 or more cells 2) Cells are the basic structure and function of living organisms 3) Cells come from existing cells
What is the function of the cell membrane? controls what enters and leaves the cell
What are 2 organelles that only are found in plant cells? cell wall and chloroplast
What is the function of the mitochondria? (produce energy)changes food particles into energy,ATP, for the cell to use
What is osmosis? the movement of water (diffusion) across a cell membrane
What is the main function of carbohydrates? energy source
What come together to make proteins? amino acids
What do all organic compounds contain? carbon
What are 3 examples of carbohydrates? starch, sugar, cellulose
What is the function of the nucleus? control center of the cell; direct all cell activities
What is diffusion? the movement of particles from an area of high concentration to an area of low concentration without the use of energy
What is the function of the ribosomes? make proteins
How are bacterial cells different from plant and animal cells? They do not have a nucleus.
What type of organisms contain specialized cells? many-celled organisms
Why do cells need water? most chemical reactions in cells require water
What is passive transport? the movement of materials through a cell membrane WITHOUT using the cell's energy
What is active transport? the movement of materials through a cell membrane USING the cell's ENERGY
What is the function of enzymes? enzymes speed up chemical reactions
What is the function of the cell wall? protect and support the cell
What type of cells contain a cell membrane? all cells have a cell membrane
What is the function of vacuoles? store food and other materials
What is the function of lysosomes? break down large food particles into smaller ones
What do starches contain? small sugar molecules combined together to form large molecules
What is an element? a substance that cannot be broken down into simpler form
What is a compound? 2 or more elements chemically combined
What type of microscope has 2 or more lenses? a compound microscope
What did Hooke call "tiny rectangular rooms"? cells
What organelle contains genetic material? chromatin
what are 2 examples of nucleic acids? DNA or RNA
What type of passive transport due oxygen molecules use to move across cell membranes? diffusion
What is the function of the golgi body? package and distribute proteins to other parts of the cell
What is the difference between mitochondrion and chloroplasts? Mitochondrion, found in plant and animal cells, use food to release energy. Chloroplasts, found only in plant cells, use energy to produce food.
What happens to a cell in a hypertonic, hypotonic, and isotonic solutions? hypertonic - water moves out of cell and cell shrivels like a raisin; hypotonic - water moves in the cell & swells up like a giant O; isotonic - equal amount of water moving in and out of cell at same rate
Created by: RMSScience7