AS Biology 33 2015 M/J

[Ajlal Hyder]

hmm, thanks for advising.
but, there is one problem. Many are saying food test with plasmolysis while other says yeast.
what do you think about 33 variant?

Tbh like i said .. i dont really know if its true ... but tbh my teacher told us about the plasmolysis test ....

 

[Ajlal Hyder]

hmm, thanks for advising.
but, there is one problem. Many are saying food test with plasmolysis while other says yeast.
what do you think about 33 variant?

i m talking bout the 33 variant ... my sir says that there will be a question based on plasmolysis for sure .

 

[bobbydylan]

For large plan diagrams, do we draw the cells or only the layers?

 

[Abdul Hanan]

For large plan diagrams, do we draw the cells or only the layers?

layers for e.g in leaf/stem/root. In which ones do we have to draw cells?

 

[zainabr17]

Dont we have to draw the outlines of tissues only? :/
eg in a transverse section of a leaf.. do we just draw the outlines of the palisade mesophyl tissue
..or do we draw the outlines of cells. (Without the inside details, of course)

 

[princess Anu]

nup only the tissues, or of a layer of cells such as epidermis

Dont we have to draw the outlines of tissues only? :/
eg in a transverse section of a leaf.. do we just draw the outlines of the palisade mesophyl tissue
..or do we draw the outlines of cells. (Without the inside details, of course)

 

[bubbles1997]

i m talking bout the 33 variant ... my sir says that there will be a question based on plasmolysis for sure .

okay, thanks!

 

[princess Anu]

The marking scheme says, ' enclosure drawn in cells Q and S'
what does that mean?

 

[princess Anu]

The marking scheme says, ' enclosure drawn in cells Q and S'
what does that mean?

here it says that;

 

[bubbles1997]

The marking scheme says, ' enclosure drawn in cells Q and S'
what does that mean?

what does the question mean?

 

[princess Anu]

what does the question mean?

The question was to draw the cells as seen in fig 2.1
and then the marking scheme mentions this point of drawing an enclosure in cell Q& S
my question is how do we show an 'enclosure'

 

[mohammad tareq]

Hey ... Guys do any one of u have the errors and improvements of all the experiments ,. Cus I don't know anything about that. ..
I need help so badly ..

 

[bubbles1997]

Hey ... Guys do any one of u have the errors and improvements of all the experiments ,. Cus I don't know anything about that. ..
I need help so badly ..

http://www.slideshare.net/drpmills/practical-skills-in-biology

 

[mohammad tareq]

Thanks ... Bubbles 1997 ",....
Exam. Was easy .... Thanks god ...
Hope all have done well ..

 

[FranticAmaze]

Thanks ... Bubbles 1997 ",....
Exam. Was easy .... Thanks god ...
Hope all have done well ..

yes it was easy alhamdulillah

 

[Sahil Gupta]

Guys, for the 1st question, instead of doing the glucose test , i did sucrose test but got the same result bc that solution was a mixture of sucrose and glucose. so will i be wrong or was it just a waste of time and still get marks?

 

[bubbles1997]

Any guesses for tomorrow's Bio 34 practical?
I need it for my dear friend

 

[bubbles1997]

it will be based upon the turgidity of a slice of a potato after you place it in a dilute solution and then in a concentrated solution, more like dilution .. you will have too make solutions of different concentrations, you 'll have to measure the length of the potato strip or slice after carrying out the experiment with each solution that you will make !! revise this from the o level coarse book ...

Can this be a part of tomorrow's practical? We did plasmolysis on onions. Maybe, they could give potato with dilutions.