active transport

define active transport

where particles go to a low to high concentration

what are the factors that affect the movement of the substances

tememperature

ratio of surface area to volume

distance

concentration gradient

what does it mean by concentration gradient

the difference in concerntration between two areas

how does it affect the movement of substances

large difference = steep gradient means that its more quicker

small difference = less steep gradient means

its less quicker.

how does surface area : volume ratio affect the movemement of substances

small = large surface area compared to volume means fast diffusion

large = small surface area compared to volume means slow diffusion

how does temerpature affect the movement of substances

higher temerpatuer = quicker movement

lower temperature = slower movement

too high temperature = no movement (enzymes denature)

how does distance affect teh movement of practical

small distance = quicker movement

large distance = slower movement