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Practice for Test
what does a cell need to carry many chemical reactions?
must enter and leave a cell by diffusion, osmosis and/or active site
what is diffusion?
movement from high concentration points to low concentration points
definition of osmosis?
movement of water across membrane from high to low potential
definition of active site?
energy required process to move substances against concentration gradient
higher temperature particles?
move faster and more kinetic energy to move around and more diffusion
concentration gradient?
when there’s a big difference between the numbers of particles in a place and diffusion speed will spread them out if increased
surface area to volume ratio?
the surface area of the second cell is much bigger than the first its a folded membrane
volume of cells?
second cell has a much larger surface area to VR [volume ratio] which increases rate of diffusion
Distance?
rate of diffusion is the distances particles travel shorter and faster which makes cells squish to make distance shorter
section of alveoli
air sac in lungs
living system? [diffusion]
diffuses in and out of the leaf depending on the conditions
non-living- dyes spread?
from a high concentration to low until distributed
living system [osmosis]
potato gains water in distilled water or losses water in salt solution
non-living-water?
moves from in the tube by osmosis to swell
cells need?
energy to carry out functions such as ATP
where is ATP produced?
ATP is produced in cells in the process of cellular respiration
Does ATP happen in every cell?
not in RBC’s
Note 
Flashcard (30)