biology lab test 4
Terms
undefined, object
copy deck
- does not require energy
- passive
- energy in cells
- atp
- occurs only by the ability of the cell to move some substances across its membrane
- steady state
- when membranes are this, they only allow certain molecules across
- selectively permeable
- a process that requires energy when moving material across its membrane
- active transport
- requires no energy when moving material across its membrane
- passively
- the movement of molecules from areas of high concentration to areas of low concentration
- diffusion
- the process where water moves from high water content (low salute) to low water content (high solute)
- osmosis
- the solution on one side of the membrane contains a greater concentration of a substance compared to the other
- hypertonic
- equal amounts of the substance are found on each side of the membrane
- isotonic
- the solution on one side of the membrane contains a lower concentration of a substance compared to the other
- hypotonic
- what is it called when the cell shrivels up?
- crenation
- what is it called when the cell breaks
- lysis
- happiest in hypotonic
- turgid
- movement of water
- osmosis
- what is under the category of diffusion
- osmosis
- there is not enough water within the cells for them to retain their shape and strength so the plant starts to die- in terms of...
- osmosis and diffusion
- once there are equal numbers of water molecules on each side of the membrane, no more osmosis occurs, and the solution is said to be in
- equilibrium
- all the water goes in and out...
- isotonic
- all the water goes in
- hypotonic