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7th Science test ch.4

movement of particles from areas of high concentration 2 areas of low concentration diffusion
energy is not required for _________ difusion
the diffusion of water through a semi-permiable membrane osmosis
water is made of particles called________ molecules
half semi
only certain substances can pass through semipermiable
osmosis is important to____ _____&___ _______ life processes& cell funtion
passageways in the cell membrane made of protiens channels
movement of substances across a cell membrane without the use of energy by the cell passive transport
the movement of substances across the cell membrane(requires cell to use energy) active transport
state of balance equilibrium
process that a cell surronds particle in a vesicle 2 bring particle in the cell endocytosis
what 2 ways are ways of bringing large particles in 2 or out of the cell? endocytosis & exocytosis
process that a cell releases a particle by vesicle that then moves 2 cell surface & fuses with cell mebrane exocytosis
less crowded low concentration
crowded high concentration
water hydro
fear phobic
2 love philic
how is osmosis diff. from diffusion? a.diffusion is movementof particles/ osmosis is movement of H2O b.osmosis envolves movement across a Semi- permiable membrane / diffusion dosn't
more solute outside cell, h2o flows outside hypertonic
more solute inside cell,h2o flows inside hypotonic
same amt.of solute 7 H2O on both sides of cell isotonic
what is the formula for photosynthesis? CO2&H2O sunlight C6H12O6 &O2
process by which plants capture energy from the sun& convert it into food(glucose) photosynthesis
pigment in the chloroplasts that absorbs sunlight chlorophyll
glucose is a______ carb.
glucose& O2-----ATP& (CO2 & H2O) celular resiration
in eukaryotes c.r. takes place in the_______? mitochondria
in prokaryotes c.r. takes place in the ______? cell membrane
process by which cells use oxygen 2 produce ener.from food cellular respiration
the breakdown of food without the use of oxygen fermintation
Created by: Wilson Hall