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Higher Biology 2013

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Original post by john51
I put light intensity for the variable

Is that the yeast question. But yeast doesn't use light though does it, so it'd be irrelevant.
Reply 121
Original post by CSM1996
But they are biologists they don't know that please :frown: Well if the lead was faulty, then it would be an acid then it wouldn't be controlled then !!!!!!!!!!!!!!!!!!!!!!!!!!!! joke i'm just trying to make myself feel better cry

Wait is lead even a strong base?


lead(ii) hydroxide
Reply 122
Original post by lion542
lead(ii) hydroxide


Oh well, you never know. For all they know I don't do chemistry and don't know that!
Original post by CSM1996
pH and concentration are different things. pH is concentration of hydrogen ions isn't it?

I guess I'm going fail chemistry then.
Reply 124
Original post by CSM1996
Thinking outside the box, I like it :colone:

I swear they mention about 400 variables already:frown:(
Reply 125
Original post by Brianthewalrus
Is that the yeast question. But yeast doesn't use light though does it, so it'd be irrelevant.


Yeah i know, better than leaving it blank though
Reply 126
Original post by CSM1996
Thinking outside the box, I like it :colone:


I wrote type of yeast as well
Reply 127
Original post by Kh19
I wrote type of yeast as well

hopefully thats right was the only thing i could think of!
Reply 128
Original post by hiimsophx
I swear they mention about 400 variables already:frown:(


Init they mentioned all the obvious ones - temperature, volume, concentration :frown:


Original post by Kh19
I wrote type of yeast as well


I'm pretty sure that is right - god knows why I didn't think of it :frown:
Original post by john51
Yeah i know, better than leaving it blank though

Googled it and apparently they can work better in dark damp conditions. Some quantum Biology ****. Maybe you'll get a decent marker.
(edited 10 years ago)
What did you folks put for: Why did the glucose concentration decrease between 1 and 3 hours? It asked for two reasons.
Reply 131
Original post by lion542
lead(ii) hydroxide


Lead(II) nitrate forms a slightly acidic solution, with a pH of 3.0 to 4.0 for a 20% aqueous solution.
Reply 132
Original post by GremlinFace
What did you folks put for: Why did the glucose concentration decrease between 1 and 3 hours? It asked for two reasons.


Insulin converted glucose to glycogen and glucose used up by respiration!
So wait, for the yeast variable, would glucose concentration be something that is already kept constant anyway?-edit. Obviously, silly mistake.
Reply 134
Original post by CSM1996
Lead(II) nitrate forms a slightly acidic solution, with a pH of 3.0 to 4.0 for a 20% aqueous solution.


Thats me told :tongue:
Original post by CSM1996
Init they mentioned all the obvious ones - temperature, volume, concentration :frown:




I'm pretty sure that is right - god knows why I didn't think of it :frown:


I said temperature in surrounding air


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Reply 136
Original post by CSM1996
Insulin converted glucose to glycogen and glucose used up by respiration!


I said the guy exercised so respirated more
Reply 137
Original post by GremlinFace
What did you folks put for: Why did the glucose concentration decrease between 1 and 3 hours? It asked for two reasons.

I put because the insulin conc greatly increased meaning that the glucose got converted into glycogen? or glucagon GOD KNOWS
Original post by CSM1996
Insulin converted glucose to glycogen and glucose used up by respiration!


Yuss! I put that too :biggrin:
Reply 139
Original post by Brianthewalrus
So wait, for the yeast variable, would glucose concentration be something that is already kept constant anyway?-edit. Obviously, silly mistake.


why would glucose be kept constant? It said the volume was constant at 200cm3

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