LAB - Water Transport


Exercise 1

The first exercise did not go as expected. The blue dye barely moved up the celery stalk if at all.
Dye table:

When the dye was seen there was barely any progress.

Here is a picture of the base of one of the stalks stripped down to show the lack of blue dye. 
(The stalk was cut shorter as well to make sure I got a better picture of it)


The start for every stalk.

Here are some of the pictures of the base of the stalks
(Again, some cut down shorter after the initial soak to check deeper inside)



Exercise 2
This exercise was to examine the independence of water transport up different vascular bundles in celery.
At this point, I thought that I must have done something wrong if I was getting such a strange result, but I decided to continue and finish the lab, instead of immediately restarting to get the result I wanted.

Here is a picture of the stalk in the two different dyes.
    Here you can see the red side of the stalk after it had been pulled apart. You can clearly see that the red traveled all the way up the stalk in the 30-40 minutes they were left there.
Strangely The other side had absolutely no blue on the inside of the stalk. 

I remain confused as to what caused this. Clearly, there was nothing wrong with the celery if the red dye managed to be visible all the way up the stalk. Could there have been a problem with the blue dye? I am unsure at this point but that is where I think this experiment went wrong. In the red portion, you could see the xylem containing the good coloring and see the tinted water running up the veins of the stalk. Since the blue either didn't travel up or didn't show itself, it is unknown if the colors mixed when met together in the celery.

Exercise 3 
The following experiment made to observe osmosis.
Each container will contain 1 small cube of apple.
One container will have no salt, one will have 1tsp of salt, and another one with 1Tbl of salt.
Hopefully, we will be able to measure a difference between the different containers.
They will be left in their containers for 30 minutes each.

Water Mixture
No changes

1tsp salt mixture
Slightly harder, fibrous
Slightly shrunk

1Tbs salt mixture
Much harder, slightly gritty, not fibrous
Slightly shrunk

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