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39 Cards in this Set
- Front
- Back
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Cell
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Basic unit of structure and function in living things
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Microscope
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an instrument that makes small objects larger
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A light microscope that has more than one lens
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Compound microscope
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First person to observe cells - what did he observe
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Robert Hooke - cork
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Cell theory
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All living things are composed of cells.
Cells are the basic unit of structure and function in living things. All cells are produced from other cells. |
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Magnification
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ability to make things look larger than they are
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The lense or lenses in a light microscope magnify an obhect by ______ __ _______ that passes through them.
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bending the light
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convex lens
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lens with a curved shape
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Organelle
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tiny cell structure that carry out specific functions withtin the cell.
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Basic unit of structure and function in living things
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cells
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tiny cell structures that carry out specific functions within the cell
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organelles
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cell wall
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a rigid layer of nonliving material that surrounds plant cells - made of cellulose
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cell wall function
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helps to protect and support the cell
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a rigid layer of nonliving material that surrounds plant cells - made of cellulose
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cell wall
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cell membrane
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controls what substances come in and out of a cell - everything enters through this
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controls what substances come in and out of a cell - everything enters through this
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cell membrane
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Nucleus
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"brain" of a cell - directs all activities in this control center
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"Brain" that directs all activities - control center
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Nucleus
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Nuclear membrane
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"cell membrane" of a nucleus
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"cell membrane" of a nucleus
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nuclear membrane
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Chromatin
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thin strands floating in the nucleus - instructions that direct the function of a cell
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instructions that direct the function of a cell - thin strands floating in the nucleus
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chromatin
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Nucleolus
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where ribosomes are made
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where ribosomes are made
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Nucleolus
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Cytoplasm
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the region between the cell membrane and the nucleus.
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the region between the cell membrane and the nucleus
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Cytoplasm
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Mitochondrion
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rod-shaped structures - "powerhouses", produce most of the cell's energy
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"powerhouses", produce most of the cells enerfy - rod shaped
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Mitochondrion
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Endoplasmic Reticulum
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passageways that carry proteins and other materials from one side of cell to the other
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passageways that carry proteins and others to one and another side of a cell
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Endoplasmic reticulum
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Ribosomes
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small "grains" attached to the outer ER or floating in cytoplasm: factories to produce proteins
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factories to produce proteins; small "grains" attached to the outer ER or floating in the cytoplasm
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Ribosomes
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Flattened sacs and tubes; cell's mailroom. Recieve proteins and others, package, and distribute to other parts of the cell or outside the cell
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Golgi body
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Golgi body
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the cell's mailroom. Recieves proteins, etc, and packages them to distribute to other parts of the cell or outside the cell
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Chloroplasts
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plants only - capture energy from sunlight and use it to produce food. give green color.
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capture energy from sunlight and use it to produce food. give green color.
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Chloroplasts
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Vacuoles
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water filled sac in all plants and some animals - storage area of food, water, and wastes
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sac of storage for food, water, and wastes
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Vacuole
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Lysosomes
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small round structures that contain chemicals to break down large food particles into smaller ones; old cell parts
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