The uses of ATP?

Am doing an essay on this, here is all I have come up with so far - what have I missed? Also, does anyone know how exactly ATP is used in muscles and in DNA/protein synthesis? I can't find a lot about them online.

Active transport
(indirectly) Facillitated diffusion
Muscular contractions
Protein synthesis - growth/repair/enzymes
DNA synthesis
Glycolysis

Thanks!

Reply 1

oxymoron

In protein synthesis (translation), ATP is required to form the peptide bond between the two amino acid --> so it is required by the enzyme, peptidyl transferase.

In DNA synthesis, activated nucleotides (ie nucleotides with 3 phosphates rather than just 1) are required to extend the DNA chain and these are generated from ATP.

ATP is also used in photosynthesis (as well as a whole number of other biochemical pathways such as fatty acid synthesis and glycogenesis)

Reply 2

=Keith=

Protein Synthesis .. is a part of the use "Building Macromolecules" SO u can add more information on this point.
Another one is ..
"Exocytosis and Endocytosis" Or movement across the cell membrane..
Under these u can include active Transport and facilitated diffusion. Give example for each obviously lol

Reply 3

Madprof

That's fantastic, thanks :smile:

. Worked on it all morning, finally, I'm nearly done!

Does anyone have any ideas about muscles?

Reply 4

oxymoron

Madprof

That's fantastic, thanks :smile:

. Worked on it all morning, finally, I'm nearly done!

Does anyone have any ideas about muscles?

Do you know how muscles work with the actin and myosin filaments?

Basically ATP is needed to break the links between the myosin heads and the actin filaments so they can slide along and reform, allowing the muscle to contract.
If that doesn't make any sense I can try and explain in a bit more detail.

Reply 5

Madprof

oxymoron

That makes some sense to me. I know that filaments are attatched in a 'peg and socket' sort of arrangement, but that's as far as it goes! Please could you explain the rest?

Thanks :smile:

Reply 6

oxymoron

Madprof

That makes some sense to me. I know that filaments are attatched in a 'peg and socket' sort of arrangement, but that's as far as it goes! Please could you explain the rest?

Thanks :smile:

This website has quite a lot of good information:

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/M/Muscles.html

Scroll down to where it says "The Sliding-Filament Model" (about half way down).
I would explain it myself but the site seems to have it all up there already :smile: