ap bio lab 1?

Question

I need help with the analysis questions. does anyone have the answers. i really need help!

I was kind of confused with all the questions because i got really behind. I was hoping that someone who did the class already could send me the answers to refer to but anyways specifically
I really need help with Part A:
What substances were entering and which were leaving the bag?
The concentration and pore size differences in data

and part E How the elodea is supposed to change.

Answer 1

i'll answer part a because i will assume that this is about osmosis

if it is starch and water inside the bag and IKI solution and glucose outside the bag, the water leaves the bag and glucose enters....starch is not supposed to leave(otherwise, you just interchange the answers)...if the solution outside the bag turned blue then you repeat the experiment because you did it wrong

use these info to answer the next question
the pore size: since the bag is a semi-permeable membrane, only lower pore sizes exit and enter....
concentration:water enters the area of higher concentration

listen to your professor next time, i'm sure he/she said this in the pre-lab discussion or.....just deduce the answers from the experiments...it's easy if you truly analyze it

Answer 2

Find the parts that confuse you and ask about those. Many people on Yahoo Answers will be glad to help you understand something you are confused about.

Answer 3

You have to TELL us the analysis questions.. No one will know the questions if you just say "I need help with the analysis questions"..