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RC-Science Ch. 4

RC- Science Ch. 4

diffusion of water through a semipermeable membrane where water moves from high to low Osmosis
3 types of solutions a cell can be placed in Hypertonic ; Hypotonic ; Isotonic
the solute concentrate (particle concentrate) is greater on the outside than it is on the outside Hypertonic Solution
the solute concentrate is less on the outside of cell than on the inside Hypotonic Solution
the solution concentrate is the same on the inside and outside of cell Isotonic
2 ways a cell gets materials in and out of cell Passive Transport ; Active Transport
movement of materials across a cell membrane w/o the use of energy Passive Transport
2 examples of passive transport Diffusion ; Osmosis
movement of materials across a cell membrane that requires to use energy Active Transport
2 types of active transport Endocytosis;Exocytosis;
An AT process by which particles leave the cell Exocytosis
AT procees in which cell surrounds particle in vesicle to bring it in Endocytosis
2 types of endocytosis Pinosytosis; Phagosytosis
movement of particles form high to low concentration diffuison
process by which plants capture energy from the sun and convert it into food photosynthesis
pigmit in chlorplast that absorbs sunlight Chlorophyll
formula for photosythisis CO2 + H2O to sun C6H12O6 + O2 gluctose
2 ways animals get energy Cellular Respiration , Fermentation
uses oxygen to break down food (way animal get energy) Cellular Respiration
takes place in absence of oxygen fermantation
Chemical that requires oxygen Aerobic Rxn.
chemical that doesnt require oxygen anaerobic rxn.
the life cycle of a cell . The Cell Cycle
phase between cell division; spends most of time; Interphase
4 phaseses of mitosis prophase; metaphase; anaphase; telophase
chromatin condenses; nucleaus , nuclear membrane dissapears; centrioles to opp. poles; spindle fibers form b/w centrioles prophase
chromosomes line up at equator of cell metaphase
centromeres split; chromotids move to opp poles and are called chromosomes anaphase
chromosomes uncoil; nuclear mem. and nucleaus reappear; spindles leave telophase
Created by: Robert Coker