A level Biology: Post your doubts here!

[redd]

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http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w12_qp_33.pdf

Please anyone explain me the calibration part! In DETAIL!
Thank you


HEEELLLPP!!!!

Refer the working first, they have given us keh 1 micrometer div is 0.01mm and look i can see that 10 micrometer div(bigger ones) equals to 42 eye piece div(smaller ones), so i'll work out that what is the length of 10 micrometer div. and the length is equal to 42 eyepiece div, so for one eyepiece div, i haveto divide the length with 42 and for step 2, we need to change it to micrometers as our anwer in step 1 is in mm. hope u get that

 

[Paresh]

Guys , any clue for bio practicals p34 ?

 

[Paresh]

Guys , any clue for bio practicals p34 ?

 

[Paresh]

Guys , any clue for bio practicals p34 ?

 

[MYLORD]

Refer the working first, they have given us keh 1 micrometer div is 0.01mm and look i can see that 10 micrometer div(bigger ones) equals to 42 eye piece div(smaller ones), so i'll work out that what is the length of 10 micrometer div. and the length is equal to 42 eyepiece div, so for one eyepiece div, i haveto divide the length with 42 and for step 2, we need to change it to micrometers as our anwer in step 1 is in mm. hope u get that

Awesome !!
Thnx !!

 

[Shada Mohammed]

http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_w12_qp_33.pdf

Q1 B guys how to describe?

 

[Snowysangel]

http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_s10_qp_32.pdf
Q2 b part II
Where's the xylem/vascular bundle?

 

[zain ul abidin]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_s10_qp_32.pdf
Q2 b part II
Where's the xylem/vascular bundle?

wat abt q2 a?

 

[Paresh]

Here you see...
L is slerenchyma, m is phloem , n is cambium and p is xylem...You have to compare their length with the stage micrometer given in the figure (i.e -> 30 divisions from r to k(actually 9 cm from ruler)) i got l m n p as 5 ,5 ,5 ,15 total = 30
then make diagram accordingly to the given figure (Y)

 

[Paresh]

guys for bio p34 plz do share if you go anyidea about whts commin !
All the best (Y)

 

[JutniP]

any guesses for PAPER 34 BIOOGY GUYSSSSS

 

[JutniP]

any guesses for PAPER 34 BIOOGY GUYSSSSS

 

[JutniP]

any guesses for PAPER 34 BIOOGY GUYSSSSS

 

[ANGEL_567]

Refer the working first, they have given us keh 1 micrometer div is 0.01mm and look i can see that 10 micrometer div(bigger ones) equals to 42 eye piece div(smaller ones), so i'll work out that what is the length of 10 micrometer div. and the length is equal to 42 eyepiece div, so for one eyepiece div, i haveto divide the length with 42 and for step 2, we need to change it to micrometers as our anwer in step 1 is in mm. hope u get that

I am a new user here, so can u help me in this question here http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_w12_qp_31.pdf q2)b)1

 

[DeViL gURl B)]

Guys do we draw the centromere? In the diagram of the cell division.. During the stages? Do we draw the centromere?

 

[DeViL gURl B)]

Refer the working first, they have given us keh 1 micrometer div is 0.01mm and look i can see that 10 micrometer div(bigger ones) equals to 42 eye piece div(smaller ones), so i'll work out that what is the length of 10 micrometer div. and the length is equal to 42 eyepiece div, so for one eyepiece div, i haveto divide the length with 42 and for step 2, we need to change it to micrometers as our anwer in step 1 is in mm. hope u get that

Thank you!

 

[$$AK$$]

http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_w12_qp_31.pdf

Q2bP) PLZ

Thank you!

 

[ANGEL_567]

Guys do we draw the centromere? In the diagram of the cell division.. During the stages? Do we draw the centromere?

And one more question related to serial dilution !! http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_s09_qp_32.pdf q1)a)i)
Can someone actually show me the whole working ?? Pretty Please !!

 

[ANGEL_567]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w12_qp_31.pdf

Q2bP) PLZ

I have the same question !!

 

[Snowysangel]

How was it guys?