House Case and Cell Membrane

I don't really remember if we did these two in the same class, but anyways...

For the House Case:
There's one dude with a cool hair style. He is a senior cross country runner. One day, he felt dizzy and nauseous, and he lost consciousness after practice. I thought he might have dehydration or hypoxia or hypoglycemia, but Mr. Quick said that was wrong.

For the cell membrane lecture:
The function of the cell membrane is transportation, enzyme activity, signal transduction and cell-cell recognition.