joyoustele
Badges: 19
Rep:
?
#1
Report Thread starter 3 years ago
#1
How does Ammonium Hydroxide inhibit the decolourisation of DCPIP in the hill reaction?

If you cant Answer the top one. Here is another i need help with:

The chloroplast suspension contains lots singular chloroplast molecules right?
0
reply
SummerStrawberry
Badges: 15
Rep:
?
#2
Report 3 years ago
#2
The Hill Reaction refers to the release of electrons in the light-dependent stage of photosynthesis, which reduce NADP to NADPH (you should know the importance of NADPH in the light-independent stage of photosynthesis). DCPIP has a very strong affinity for electrons, and so it - not NADP - is reduced, changing from blue to colourless.
Ammonium hydroxide is effectively a herbicide, which also has a very strong affinity for electrons, so accepts them over DCPIP, thereby preventing DCPIP from being reduced, inhibiting its decolourisation.

A chloroplast suspension contains lots of chloroplast organelles (not molecules).
1
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Do you have the space and resources you need to succeed in home learning?

Yes I have everything I need (334)
55.57%
I don't have everything I need (267)
44.43%

Watched Threads

View All