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which are the molecules that make possible active transport through membranesactive transport is made by exact membrane proteinsthese proteins are
what do facilitated diffusion and active transport have in common what are the differences between themfacilitated diffusion can be confused with
what are some examples of biological activities in which osmosis plays an important rolehemolysis destruction of red blood cells by entrance of water
how does facilitated diffusion present similarities with enzymatic chemical reactionsone of the main examples of facilitated transport is the
how does the intensity of facilitated diffusion vary in relation to the concentration of the moved substance what is the limiting factorlike simple
how does the intensity of simple diffusion differ in relation to the concentration gradient of the moved substancethe higher the concentration
what is the energy source used in active transport through biological membranesthe energy essential for active transport against the concentration
what are the three main types of passive transportthe three main kinds of passive transport area simple diffusionb osmosis andc
what are differentiations of the cell membranein some types of cells the cell membrane presents differentiations that are essential for the specific
what are the basic constituents of the cell membranethe cell membrane is produced of lipids proteins and carbohydratesthe membrane lipids are
concerning permeability what type of membrane is the cell membranethe cell membrane is a selectively permeable membrane ie it permits the passage of
what is osmotic pressureosmotic pressure is the pressure formed in an aqueous solution by a region of lower solute concentration upon a region of
what is the difference between osmosis and diffusionosmosis is the occurrence of movement of solvent particles in general water from a region of
what is meant by concentration gradient is it correct to refer to concentration gradient of water concentration gradient is the difference of
what is diffusiondiffusion is the spreading of substance molecules from a region where the substance is more concentrated to another region where it
concerning their permeability how are membranes classifiedmembranes can be divided as impermeable permeable semipermeable or selectively permeablean
what is a membranemembrane is any delicate sheet that divides one region from another blocking or permitting selectively or completely the passage of
what are the main structures within the cell nucleuswithin the cell nucleus the major structures are the nucleolus an optically dense region
what are the three main parts of a eukaryotic cellthe eukaryotic cell can be divided into two major portions the cell membrane that divides the
concerning the presence of the nucleus what is the difference among animal and bacterial cellsanimal cells cells of living beings of the kingdom
which type of cell came first in evolution - the eukaryotic cell or the prokaryotic cellthis is an interesting problem of biological evolution the
normal 0 false false false en-in x-none x-none microsoftinternetexplorer4
what are the main respective constituents of cell walls in bacteria protists fungi and plantsin bacteria the cell wall is made of peptidoglycans
what is the difference between plasma membrane and cell wallplasma membrane and cell wall is not the similar thing plasma membrane also called cell
what is the plasma membrane of the cell what are its main functionsthe plasma membrane is the outer membrane of the cell it delimits the cell itself