Question

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Answer 1

1. look at this website http://www.cliffsnotes.com/study_guide/Movement-through-the-Plasma-Membrane.topicArticleId-8741,articleId-8588.html

Answer 2

let me know if it helps or not

Answer 3

1) protein
2) yes
4) http://www.answerbag.com/q_view/766541
5) facilitated diffusion
6) i don't know what you mean by this one, but this is the balanced equation... NH4 + CO2 = CN + 2H2O