Experiment: With the Solute outside set to 5, predict whether the cell will swell, shrink, or stay the same with each of the following Initial cell volume settings. Then use the Gizmo to check each prediction. (Osmosis Gizmo.)

Predictions:
20%

50%

60%

Actual results
20%

50%

60%

b brown mice / white sand dunes

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

answer; both surfaces of the membrane are nonpermeable