[Navdeep]

I said because it has warmth, moisture and oxygen, which bacteria can break down food really well in

[ali_d123]

(Original post by Harriett7)
What did you all put for reason why respiration happened more in tropical rainforests? X

i guessed - More heat and sunshine available

[exploded-diagram]

(Original post by Harriett7)
What did you all put for reason why respiration happened more in tropical rainforests? X

I said that it sped up decay because of the warm moist, aerobic conditions, and so the amount of respiration increased.

[Navdeep]

(Original post by Crystallouise99)
I thought that the plant uses the energy from the sun for live processes, such as respiration, excretion ,etc

Is that right ?

Do plants excrete? :s

[Crystallouise99]

(Original post by Navdeep)
Do you think that because the exam is quite hard this year, grade boundaries will go down?

I'm guessing the grade boundarie will be about 44-47 out of 60 because it was more difficult thant the January 2012 question paper. The questions were very straight forward for the January 2012 paper and many people find the January 2012 paper quite easy when they did it.

The grade boundaries for Jan paper was 48/60, so this one should be a couple of marks lower, like 47/60.
Not to worry people. A grade is about 38 or 39 out of 60 I'm sure everyone did fine

[Crystallouise99]

(Original post by Navdeep)
Do plants excrete? :s

It means releasing energy I think, but that's what my biology teacher said. They don't literally excrete, but they do release waste products.
I dunno probably messed that question up ?

[Harriett7]

Hey, so was one of the processes, x or y respiration or was it decay? - I put respiration

[HELP1996]

The carbon cycle and the algae thing.....it was respiration I think because eventhough the plants take in co2 for photosynthesis they release carbon dioxide to atmosphere when they respire...hope thts right..and the microorganisms work better in tropical rainforests because it is more moist and has more oxygen + its hot which they like the best....is tht right?

[Chloe100100]

What did people put for the zebra fish question, about how they did it ?

[RohanV]

For the why does decay happen in a tropical rain forest question. If I wrote "Tropical rain forests have more moist and warm conditions meaning that microorganisms can repoduce faster" how many marks would that get me

[dannyoboy007]

I put respiration, i'm sure the arrow was going from the microorganisms to the atmosphere (May be wrong), and decomposers return carbon by respiring and producing CO2, which returns it.

[Harriett7]

(Original post by HELP1996)
The carbon cycle and the algae thing.....it was respiration I think because eventhough the plants take in co2 for photosynthesis they release carbon dioxide to atmosphere when they respire...hope thts right..and the microorganisms work better in tropical rainforests because it is more moist and has more oxygen + its hot which they like the best....is tht right?

Yes I think so, it is similar to what I put xxx

[HELP1996]

(Original post by RohanV)
For the why does decay happen in a tropical rain forest question. If I wrote "Tropical rain forests have more moist and warm conditions meaning that microorganisms can repoduce faster" how many marks would that get me

Did u mention about it containing more oxygen i think u will get full marks because u provided 2 reasons

[exploded-diagram]

(Original post by RohanV)
For the why does decay happen in a tropical rain forest question. If I wrote "Tropical rain forests have more moist and warm conditions meaning that microorganisms can repoduce faster" how many marks would that get me

i put almost the exact same thing, how many marks was it out of?

[arvind22]

lol yeah, i put yes for the pharmacists one!!

[dannyoboy007]

Somebody get an unofficial mark scheme up soon please

[HELP1996]

(Original post by Chloe100100)
What did people put for the zebra fish question, about how they did it ?

Isnt that gene splicing...where they take the unncessary gene out and replace it with the useful gene....thts wht i said anyway...is tht right?

[1234567890hi]

(Original post by Shavhi)
yeah, so grade boundaries might be high, cause it was easy

bellend

[RohanV]

(Original post by exploded-diagram)
i put almost the exact same thing, how many marks was it out of?

2 or 3 I think

[ali_d123]

(Original post by HELP1996)
The carbon cycle and the algae thing.....it was respiration I think because eventhough the plants take in co2 for photosynthesis they release carbon dioxide to atmosphere when they respire...hope thts right..and the microorganisms work better in tropical rainforests because it is more moist and has more oxygen + its hot which they like the best....is tht right?

But there was already an Arrow from the algae to the Atmosphere to show respiration, so why would algae go to microorganisms and then back to the atmosphere for respiration again?