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3656741
STRUCTURE AND FUNCTION OF CELLS_1
Description
BIOLOGY UNIT 1
No tags specified
biology
structures of cells
functions
biology
icfes/saber 11
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emilywilliams
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emilywilliams
over 8 years ago
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Resource summary
STRUCTURE AND FUNCTION OF CELLS_1
PARTS AND ORGANELLES
CELL WALL
SUPPORT, NO MEMBRANE
NUCLEUS
CONTROLS ACTIVITIES OF CELL
RIBOSOMES
SITE OF PROTEIN SYNTHESIS
CELL MEMBRANE
CONTROLS WHAT MOVES THROUGH
GOLGI BODY
PACKING AND STORING CHEMICALS FOR TRANSPORT
MITOCHONDRIA
POWER HOUSE, RESPIRATION
ROUGH ENDOPLASMIC RETICULUM
PROTEIN MADE FOR EXPORT
CHLOROPLASTS
INVOLVED IN PHOTOSYNTHESIS
LYSOSOMES
DESTROYS OLD CELLS & ORGANELLES
PASSIVE TRANSPORT
OSMOSIS
the net movement of free water from areas of low solute concentration to high solute concentration
HYPERTONIC
increase/high solute concentration
ISOTONIC
equal solute concentration
HYPOTONIC
low solute concentration
DIFFUSION
the net movement of molecules from areas of high concentration to low concentration
AN EVEN DISTRIBUTION OF MOLECULES
RATE DEPENDS ON:
CHARGE OF IONS
TEMPERATURE
DIAMETER OF IONS
CONCENTRATION GRADIENT
ACTIVE TRANSPORT
Energy is used to move substances from low to high concentration usually via carrier proteins
ENDOCYTOSIS
traveling into the cell
EXOCYTOSIS
travelng out of the cell ie removal of waste
TYPES OF CELLS
PROKARYOTIC
SMALL/LACK SPECIALISATION
SINGLE CHROMOSOME
REACTIONS OCCUR IN CYTOPLASM
NO MEMBRANE BOUND ORGANELLES
RIBOSOMES IN BOTH
EUYKARYOTIC
RELATIVELY LARGE
MEMBRANE BOUND ORGANELLES
MULTIPLE ORGANELLES
REACTIONS OCCUR IN ORGANELLES
CELL/ PLASMA MEMBRANES
FUNCTIONS
BOUNDRY OF CELL
CONTROL OF SUBSTANCES PASSING THROUGH
ENCLOSES ORGANELLES
CELLULAR COMMUNICATION
TRANSPORT OF MOLECULES
ELECTRICAL ACTIVITY
STRUCTURES
GLYCO PROTEIN
cell recognition, proteins and carbohydrates
CARRIER PROTEIN
receives signalling molecules (hormones)
RECEPTOR PROTEIN
carries substances across the membrane
FACILITATED TRANSPORT
Passive transport from high to low concentration via protein channels and carrier proteins
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