VCE Stuff > VCE Physical Education

ilikeschool's questions

<< < (6/9) > >>

melaniej:
oooh yep. For the second question, because there is no oxygen present, then the molecule can't be fully broken down, hence the waste products etc etc
Awesome :)

ausyid:
Re Question 2:

Glycolysis is the conversion of Glucose into Pyruvic acid to form ATP (2 molecules). In aerobic glycolysis, the oxygen allows the pyruvic acid to be converted into ATP (another 36 molecules) in the mitochondria. If there is no oxygen present then the pyruvic acid is merely converted into lactic acid, however when oxygen becomes available the LA can be eventually removed and converted into energy aswell.

Hope that makes sense.

russdog:
Re Question 2
Anaerobic glycolysis breaks the glucose down forming pyruvic acid and 2 ATP molecules becuase there is no oxygen present the pyruvic acid is transformed into lactic acid
Aerobic glycolysis breaks the glucose down forming pyruvic acid and 2 ATP molecules then because oxygen is present its is able break the pyruvic acid down further producing 36 ATP molecules

Re Question 3
Its definitely flexion because the questions asking u for the action of the trunk not the muscular contraction from position 1 to position 2. Usually PE questions are pretty basic and dont need to be analysed to heavily.

transgression:
Thanks!

I have a few other questions. Can someone please explain the concept of:
- Athletes having the ability to work at a intensity greater than 100% of their Vo2 max
- How you would work out the work:rest ratio if given a table with information
Ie,
[IMG]http://img220.imageshack.us/img220/3974/25418700re2.th.jpg[/img][IMG]http://img220.imageshack.us/images/thpix.gif[/img]

melaniej:
VO2 Max. This is the one that always stumps me. I understand it in my head, but I can never write it out.

Ok, so an athlete working above their VO2 max, must be working anaerobically, as VO2 max is in reference to oxygen. The body is uptaking, transporting and utalising as much oxygen as it can, so to produce higher intensities it must switch to the anaerobic system.

Navigation

[0] Message Index

[#] Next page

[*] Previous page