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Microscopes & Cells

compound microscope a microscope that increases magnification by using more than one lens
cell the smallest unit of living matter that can perform life functions
cell theory a theory that states that all organisms are made up of one or more cells, that cells are the basic units of structure and function in all living things, and that all cells come from cells that already exist
unicellular organisms organisms that are made of only one cell
multicellular organisms organisms that are made up of more than one cell
flagellum a long, whip-like structure that extends from a cell and moves the cell through the water
cilia hair-like extensions on the surface of a cell
pseudopod an extension of the inside fluid of the cell that allows for the movement of some unicellular organisms
cell membrane the very thin covering that surrounds a cell and allows certain substances to move into and out of the cell
cytoplasm the gel-like substance inside the cell membrane
nucleus a cellular structure that directs the activities of a cell
eukaryotic cells cells with a nucleus
prokaryotic cells cells that do NOT have a nucleus
organelles structures within the cytoplasm of a eukaryotic cell
vacuoles storage areas found in some eukaryotic cells that can store food, water, and waste
mitochondria organelles in which energy is released from a cell's food
cell wall the rigid structure outside the cell membrane that supports and protects the plant cell
chloroplasts small oval or disk-shaped structures that contain chlorophyll, which allows plants to make their own food
energy the ability to make things happen, cause change, and do work
diffusion the movement of particles from an area where they are more concentrated to an area where they are less concentrated
osmosis the diffusion of water through a membrane
active transport the movement of materials by living cells from an area of lower concentration to areas of higher concentration
respiration the process by which cells release energy from food
photosynthesis the process by which plants use energy from light to produce food
science the study of all living and non-living things; a branch of knowledge about a particular subject
scientific method a problem solving guide
hypothesis an educated guess
data a record of observations
procedure a step-by-step list of instructions and materials needed to conduct your experiment
variable a part of an experiment that can change
Created by: loribarfield