Biology Paper 12, 32 and 62

[DarkEclipse]

Its funny how you try to prove yourself correct,sadly you're wrong brother

I'm sorry, but perhaps I should explain this in greater detail. Starch in the form of glucose is stored in chloroplasts, but never in its normal form. Now, once the glucose is actually converted to starch, it has can go to 3 places: the vacuole, the amyloplast, and to other parts of the plant for consumption. It is mostly stored in the amyloplast, which often confuses people. Amyloplast and chloroplast are both plastids, but only one of them stores starch. Had amyloplast been one of the options, then the vacuole answer wold be wrong. Here's a couple of screenshots to support my statements:








However, the Internet is really conflicted about this topic, so let's just hope for the best when the results come out, okay?
Good luck for your exms

 

[DarkEclipse]

hes right its stored in the chloroplasts not the vacuole i got it wrong too

http://uk.ask.com/question/where-is-starch-stored-in-plants

Check my post above

 

[DarkEclipse]

One more thing, starch is only stored in the chloroplasts as well as amyloplasts only, and only, when they are in the form of starch granules. The question did not specify whether they were granules or not.
Again, my answer may be wrong, but I'm pretty confident

 

[Faiqa Ahmad]

One more thing, starch is only stored in the chloroplasts as well as amyloplasts only, and only, when they are in the form of starch granules. The question did not specify whether they were granules or not.
Again, my answer may be wrong, but I'm pretty confident

Ah okay. I think it's chloroplasts though. We'll wait and see how was your paper 32?

 

[shoaib672002]

Ah okay. I think it's chloroplasts though. We'll wait and see how was your paper 32?

Well Good for Me

 

[Faiqa Ahmad]

Well Good for Me

What do you suppose the A* threshold will be

 

[shoaib672002]

What do you suppose the A* threshold will be

Well out of 200 i think 170

 

[Faiqa Ahmad]

Well out of 200 i think 170

Really? Last year it was 144 :/

 

[Ahmed madani]

What you were looking for is way advanced compared to our level anyways thank you and i hope the very best for your next exams

I'm sorry, but perhaps I should explain this in greater detail. Starch in the form of glucose is stored in chloroplasts, but never in its normal form. Now, once the glucose is actually converted to starch, it has can go to 3 places: the vacuole, the amyloplast, and to other parts of the plant for consumption. It is mostly stored in the amyloplast, which often confuses people. Amyloplast and chloroplast are both plastids, but only one of them stores starch. Had amyloplast been one of the options, then the vacuole answer wold be wrong. Here's a couple of screenshots to support my statements:
View attachment 42632
View attachment 42633
View attachment 42634
View attachment 42635
View attachment 42636
View attachment 42637
View attachment 42638
View attachment 42639
However, the Internet is really conflicted about this topic, so let's just hope for the best when the results come out, okay?
Good luck for your exms

 

[Phoenix Blood]

One more thing, starch is only stored in the chloroplasts as well as amyloplasts only, and only, when they are in the form of starch granules. The question did not specify whether they were granules or not.
Again, my answer may be wrong, but I'm pretty confident

Not cell wall? Cell wall is made of cellulose- a complex starch itself, right?

 

[Phoenix Blood]

What was the answer for: State a possible cause of 'pollution' caused by nuclear fallout in the MCQs?

 

[Phoenix Blood]

In the labelling in the human repro question, the sex cell was zygote or ovule? And what was the hormone for ovulation?

 

[Ahmed madani]

It was something to do with Mutation and in paper 3 it was zygote obviously as it shows the sperms and the egg fusion before that and the hormone is FSH

 

[Phoenix Blood]

It was something to do with Mutation and in paper 3 it was zygote obviously as it shows the sperms and the egg fusion before that and the hormone is FSH

Why zygote? Wasn't it just an ovule, because it hadn't fused? Sperms were seen in the vicinity....
And first hormone was FSH, second one was? The one that promotes ovulation?

 

[Faiqa Ahmad]

Why zygote? Wasn't it just an ovule, because it hadn't fused? Sperms were seen in the vicinity....
And first hormone was FSH, second one was? The one that promotes ovulation?

Yep I didn't write zygote either. First was FSH second was LH. What did you get for:
the advantages of sexual reproduction
DNA barcoding
And the last question, soil organisms and carbon cycle

 

[DarkEclipse]

Not cell wall? Cell wall is made of cellulose- a complex starch itself, right?

That's its composition, but it doesn't store it.

 

[Rahatara Sadique]

I'm sorry, but perhaps I should explain this in greater detail. Starch in the form of glucose is stored in chloroplasts, but never in its normal form. Now, once the glucose is actually converted to starch, it has can go to 3 places: the vacuole, the amyloplast, and to other parts of the plant for consumption. It is mostly stored in the amyloplast, which often confuses people. Amyloplast and chloroplast are both plastids, but only one of them stores starch. Had amyloplast been one of the options, then the vacuole answer wold be wrong. Here's a couple of screenshots to support my statements:
View attachment 42632
View attachment 42633
View attachment 42634
View attachment 42635
View attachment 42636
View attachment 42637
View attachment 42638
View attachment 42639
However, the Internet is really conflicted about this topic, so let's just hope for the best when the results come out, okay?
Good luck for your exms

I too selected the option 'vacuole' because after glucose is produced by photosynthesis, it can't be stored as glucose itself (it's too reactive) so it is converted into another form i.e. sucrose and then translocated to the other parts of the plant to use it. Some of the glucose produced is converted to starch and stored for future use. I selected vacuole as the answer as at that time I thought about translocation. But many of my friends have told that it is chloroplasts. I'm not sure about the answer though...but I'm very much confused. :/

round thing thats not black,called as chloroplast and yes it is stored there .

Why chloroplast? That's where glucose is made and then converted to starch and translocated... :/

 

[DarkEclipse]

What you were looking for is way advanced compared to our level anyways thank you and i hope the very best for your next exams

Thanks

Ah okay. I think it's chloroplasts though. We'll wait and see how was your paper 32?

It was all right

 

[RahatMT]

It states here that starch is stored in the chloroplasts..

 

[DarkEclipse]

It states here that starch is stored in the chloroplasts..

Like I said, it's conflicted. Let's see what happens.