Exercising for SAC

[sum1]

Yeah so apparently we're going to be doing some exercises for the upcoming coordination and regulation SAC. Any idea what it could be about? Since we're exercising I was thinking temperature and blood glucose level might be asked about.

[Fluttershy]

Measuring blood glucose is one of those things that probably wouldn't be allowed in a school setting due to health and safety. If you're exercising, I'd say that it's more likely that you'd be focusing on body temperature and the body's homeostatic response to heat.

As you exercise, you'll notice several things begin to occur as your body temperature rises. Sweating, flushed skin, dilated veins- they're all responses that aim to reduce your body temperature (evaporating sweat removes heat, blood rushing close to your skin means that heat will dissipate more efficiently). Perhaps you might be required to measure temperature at your extremities (such as between a thumb and a finger) and your core temperature (under your armpits was the method we used last year in our SAC), and compare them.

Good luck for your SAC!

[Stick]

I have the exact same SAC. Things that may be measured quantitatively are blood pressure and heart rate (my school is doing this). Other than that, most of what Fluttershy says holds.

[Yacoubb]

I have the exact same SAC. Things that may be measured quantitatively are blood pressure and heart rate (my school is doing this). Other than that, most of what Fluttershy says holds.

For my Homeostasis SAC, we're using second-hand data, and then writing up a full practical report in about 1.5 hours I believe.

[Stick]

I have to do the exercise.

[Yacoubb]

I have to do the exercise.

I can see the enthusiasm Stick I'm so glad that this SAC is second-hand data; some much easier to deal with, lol!

[ealam2]

For my Homeostasis SAC, we're using second-hand data, and then writing up a full practical report in about 1.5 hours I believe.

same here! but we're doing it in 50 minutes (double sided page) and no plant stuff will be in it.

[Yacoubb]

same here! but we're doing it in 50 minutes (double sided page) and no plant stuff will be in it.

Yeah we're doing a full practical report write-up in 1.5 hours I believe

[Stick]

What is some of the theory that could be tested in this SAC? I mean, I know that there will be all the changes in a body due to exercise stuff, but since this is the homeostasis topic, what else would be good to know? I asked my teacher and she just said "homeostasis stuff". I'm a bit uncertain about this SAC since compared to the last three (on osmosis, enzymes and photosynthesis respectively) this SAC seems much broader in terms of what can be tested. Any advice?

[sum1]

I'm not sure but perhaps the nervous system and how it works in conjunction with the endocrine system to enable certain responses? I'm pretty sure my sac would have something about nerves on it, oh and I'm guessing it might also have something about signal transduction? What would you have to know for signal transduction? Besides the difference between protein and lipid hormone, and how it works?

[Stick]

It's so broad! XD

[Yacoubb]

It's so broad! XD

I think the main focus will be on negative feedback mechanisms. So then, you know that both the nervous and the endocrine system are involved in the maintenenance of this relatively stable environment, despite external, fluctating conditions. I'd probably look at the stimulus-response model, and how there is always the Reception, Signal Transduction and Response to a particular change.

I think, as you mentioned, Homeostasis is SUCH a broad topic lol.

[pi]

My SAC on this was related to thermoregulation homeostasis.

[Stick]

I think the main focus will be on negative feedback mechanisms. So then, you know that both the nervous and the endocrine system are involved in the maintenenance of this relatively stable environment, despite external, fluctating conditions. I'd probably look at the stimulus-response model, and how there is always the Reception, Signal Transduction and Response to a particular change.

I think, as you mentioned, Homeostasis is SUCH a broad topic lol.

Yep, I'm allowed a cheat sheet and it's basically revolving around everything you've just mentioned. I'm not really focussing on the specifics of endocrine and nervous system function, but rather their general involvement in homeostasis.

This SAC seems like it will be much more difficult, but I think it will separate the students a lot better (like the experimental design one for photosynthesis did). The osmosis and enzymes SACs essentially put students in massive clusters due to the very niche nature of these topics. Hopefully I'll be OK. Thanks for the contributions, everyone.

[ealam2]

We had comparisons between endocrine and nervous system and also between steroid hormones and lipid hormones. Ours was also related to thermoregulation and stimulus-response model.