Hey guys,
How does the water molecule break the O bond in hydrolysis? They mention this happens but I don't understand the chemistry behind it. Does the O molecule joining the monomers have more attraction to the H2O's hydrogens than the waters H does to it's own O? I don't see how
Many thanks,
Corey
This is well and truly more in the realm of chem than bio, and even then the specifics are something you'd generally learn about in 1st year uni. That being said, if you are super keen look up a video on hydrolysis mechanisms.
Basically, the oxygen in the water is attracted to the relevant carbon atom in the polymer, and carbon doesn't like having more than 4 bonds so a bond connecting it to the polymer goes away, splitting the polymer into two.
Anyone able to explain why the circled answers are correct for the given questions ?
In design 1, all 12 ducks are in the same condition. This means that any random changes (e.g. because one duck has a different personality) is likely to be "balanced out" by the other ducks. In design 2, there are only 3 ducks in each condition, so random changes are less likely to be "balanced out"
In design 1, maybe some of what you measure as the weeks go on is because they've been in the experiment for a long time, or delayed reactions to the previous environmental conditions. This could cause issues from you thinking those impacts are due to different saltiness when it's not. In design 2 you don't have that impact because in each week all 4 conditions are being tested at the same time