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28 Cards in this Set
- Front
- Back
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cell membrane(plasma membrane)
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at the boundary of every cell the cell membrane acts as a slective barrier that allows sufficient passage of oxygen, nutrients, and water to service the entire cell volume.
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Function of the cell membrane
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*protects the inside of the cell
*supports and gives the cell shape *controls what moves into and out of a cell *recognizes and responds to chemical signals (cell communication) |
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cytoplasm
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the region between the nucleus and the cell membrane, where the organelles of the cell are located
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cytosol
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semi-fluid substance in cells
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organelle
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specilized internal structures in Eukaryotic cells
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nucleus
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th "brain" of the cell
*contains all of the blueprints for all of the cells in the body *DNA is found in the nucleus, usually in the form of cromatin |
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nuclear membrane
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a double membrane that allows things to enter and leave the nucleus through pores
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nucleolus
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makes ribosomes (may be multiple nucleoli in a cell)
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ribosomes
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the organelle where proteins are made. Ribosomes leave the nucleus via the nuclear membrane with instructions on how to make proteins
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Endoplasmic Recticulum
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the site of cellular chemical reactions. serve as a system of channels for materials to be transported throughout the cell. (highway system for the cell)
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Rough ER/Smooth ER
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Rough ER: ribosomes attach and finnish forming proteins
Smooth ER: production and storage of lipids and other molecules take place here |
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nuclear membrane
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a double membrane that allows things to enter and leave the nucleus through pores
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nucleolus
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makes ribosomes (may be multiple nucleoli in a cell)
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ribosomes
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the organelle where proteins are made. Ribosomes leave the nucleus via the nuclear membrane with instructions on how to make proteins
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Endoplasmic Recticulum
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the site of cellular chemical reactions. serve as a system of channels for materials to be transported throughout the cell. (highway system for the cell)
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Rough ER/Smooth ER
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Rough ER: ribosomes attach and finnish forming proteins
Smooth ER: production and storage of lipids and other molecules take place here |
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Golgi Body (Apparatus)
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proteins are modified *fine toned)
*the proteins are packaged and shipped off to where they are needed inside and outside of the cell ***the post office of the cell |
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lysosomes
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the digestive system of the cell
*enzymes are found here! *there is a membrane surrounding the lysosome |
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centrioles
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just found in animal cells; play a role in cell division(mitosis)
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vacuole
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membrane bound spaces that are temperary storage of materials
*food,enzymes,wastes,water |
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chloroplasts
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organelles that capture light energy and produce food to use for a later time (glucose)
*have a double membrane |
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chlorophyll
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a green pigment that traps light energy
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mitochondria
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membrane bound organellesin plant and animal cells that transform energy for the cell (power house of the cell)
*depending on the function of the cell the # of mitochondria may increase or decrease |
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cell wall
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rigid structure located outside the cell membrane. found only in plant cells and some bacteria cells.
function: support and protection made up of cellilose(fibrous and porous) ***the cell wall is NOT selectively permeable...it will let anything that fits in!!! |
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Cytoskeleton
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support structure within the cytoplasm, made up of tiny rods and filaments
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microtubes/microfilaments
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microtubes: thin hollow protein cylindars
microfilametns: thin, solid protein fibers ****microfilaments help support and made the cell |
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cilia
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structures that help cells with locomotion and feeding
*short hair-like projections that move in a wave like motion |
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flagella
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same functions as cilia
*long projection that move in a whip-like motion |
