Help with understanding geometrical isomers

Do some research on cis-trans (or E/Z) and you'll find your answer/s.

Im in exactly the same boat

Im doing an ou course to and i dont understand my whole assignment this time

YEP !! and i can honestly say i havent got a clue for any of it and its driving me mental

I just sent a message to the tutor asking loads of questions and reading over and over the text hoping it'll get me somewhere. Any particular part your stuck on?

Q3 aswell lol

I think im ok with b and c so just A if you could im also stuck on 1d i think i may have to give up

with 3 c I'm stuck on the second part of why the drugs don't last very long but for the first part I put


because unlike bacteria viruses don't carry out any metabolic processes of their own and use our cells as a host. Bacteria on the other hand has many stages to its own replication that give drugs a chance to interact and stop the process ie. penicillin with blocks the enzymes of cell wall growth in replication. Less chance drugs can interfere with viruses because of that. (Something along those lines) hope that helps.


For id. The -(CH2) - o - (CH2)4 (benzine ring) group on the right makes it longer lasting than salbutamol. The OH groups make it non addictive and CH2OH on the left make it resistant to enzyme deactivation.

Thats brilliant makes abit more sense now ill keep trying to crack the geometric isomer and let you know

IS THIS IT ????Br .....CH(Br)CH3
..\....../
...C=C
../......\
H.......H

Trans:

H.......CH(Br)CH3
..\....../
...C=C
../......\
Br......H

I don't know I'm getting confused with this one do the hydrogens move from the carbon is what I asked the tutor. This might be the right answer then just the second part of the question to go.