AS Biology P1 MCQs Preparation Thread

[Zarif009]

Can someone tell me how to solve this question? !View attachment 28952

The answer is C because one cardiac cycle lasts for .75 seconds...
One minute has 60 seconds so divide 60 by .75 and the answer will be 80

 

[1357911]

The answer is C because one cardiac cycle lasts for .75 seconds...
One minute has 60 seconds so divide 60 by .75 and the answer will be 80

Zarif009 o/n 2010 varient 11 ques 22 and 38 can u plzz help....

 

[Zarif009]

Zarif009 o/n 2010 varient 11 ques 22 and 38 can u plzz help....

In question 38 multiply all the quantities of each row together to get the total energy... then arrange that total value in ascending order

In question 22 in 3 when uracil is present C is 'nil' so thats thymine. Then B is always matching in composition with Uracil or Thymine so B is adenine
because of base pairing of A with T/U
hope it helped

 

[1357911]

Thanks. Got it.
Can i ask u one more question
m/j 2010 varient 11 question 14

 

[selena]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w08_qp_1.pdf q1 plz

 

[kingos3111]

guys do we need a ruler tell me please

 

[Xainab]

Yes,

guys do we need a ruler tell me please

Yes, to measure observed length of diagrams and all.

 

[1357911]

guys do we need a ruler tell me please

Its required. You may get a ques to find out the magnification

 

[white rose]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w08_qp_1.pdf q1 plz

luk greatest no.og cells will only be seen when magnifiacation is least...so least for eyepiece is x5 n for objective it is x10.
hope u get it

 

[darkxangel]

?????

 

[kiran11]

please help w11 variant 11 Q24

 

[Pwincessajwa]

http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_w11_qp_12.pdf q 2,4,8,9 ,20 anyone plz ???? have exam tmorw

 

[Areeb Afzaal]

http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_w11_qp_12.pdf q 2,4,8,9 ,20 anyone plz ???? have exam tmorw

What dont u get in 2?cisternae is found in er and golgi while cristae in mitochondria
mRNA is made in nucleus and the two orgenelle as they make their proteins..rough er has mRNA in the context that translation ocuurs overvthere

 

[Areeb Afzaal]

please help w11 variant 11 Q24

Its kind of hard to explain in a post form
The time is between 1 and 2 and 3 and 4 as these are the times during which both remains close

 

[Lujain M.]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w11_qp_12.pdf q 2,4,8,9 ,20 anyone plz ???? have exam tmorw

Q2- cisternae is ALWAYS found in golgi body and ER. mitocondrion has CRISTAE. dont mix up the names.
Q4- if you check the structures, all 4 contain ribosomes.
Q8- glucose plus glucose means C12H24O12 BUT dont forget to remove H2o because it's a condensation reaction ro you'll remove 2 Hs and one O from both.
Q9- there's 1,6 linkages so it's always amylopectin, glycogen and starch.
Q20- every 3 nucleotides make one amino acid. so firtst get the no. of amino acids. divide 12000 by 3 you'll get 4000. then it's DNA so it's double stranded so in order to find no. of amino acids in ONE strand, divide 4000 by 2 you'll get 2000 which is C.
Hope it helped!!

 

[Pwincessajwa]

Q2- cisternae is ALWAYS found in golgi body and ER. mitocondrion has CRISTAE. dont mix up the names.
Q4- if you check the structures, all 4 contain ribosomes.
Q8- glucose plus glucose means C12H24O12 BUT dont forget to remove H2o because it's a condensation reaction ro you'll remove 2 Hs and one O from both.
Q9- there's 1,6 linkages so it's always amylopectin, glycogen and starch.
Q20- every 3 nucleotides make one amino acid. so firtst get the no. of amino acids. divide 12000 by 3 you'll get 4000. then it's DNA so it's double stranded so in order to find no. of amino acids in ONE strand, divide 4000 by 2 you'll get 2000 which is C.
Hope it helped!!

yup alotttttttttttttt thank u so much <3

 

[Areeb Afzaal]

Q2- cisternae is ALWAYS found in golgi body and ER. mitocondrion has CRISTAE. dont mix up the names.
Q4- if you check the structures, all 4 contain ribosomes.
Q8- glucose plus glucose means C12H24O12 BUT dont forget to remove H2o because it's a condensation reaction ro you'll remove 2 Hs and one O from both.
Q9- there's 1,6 linkages so it's always amylopectin, glycogen and starch.
Q20- every 3 nucleotides make one amino acid. so firtst get the no. of amino acids. divide 12000 by 3 you'll get 4000. then it's DNA so it's double stranded so in order to find no. of amino acids in ONE strand, divide 4000 by 2 you'll get 2000 which is C.
Hope it helped!!

Does nucleus contain ribosomes or in the context u are mentioning?

 

[Pwincessajwa]

Q2- cisternae is ALWAYS found in golgi body and ER. mitocondrion has CRISTAE. dont mix up the names.
Q4- if you check the structures, all 4 contain ribosomes.
Q8- glucose plus glucose means C12H24O12 BUT dont forget to remove H2o because it's a condensation reaction ro you'll remove 2 Hs and one O from both.
Q9- there's 1,6 linkages so it's always amylopectin, glycogen and starch.
Q20- every 3 nucleotides make one amino acid. so firtst get the no. of amino acids. divide 12000 by 3 you'll get 4000. then it's DNA so it's double stranded so in order to find no. of amino acids in ONE strand, divide 4000 by 2 you'll get 2000 which is C.
Hope it helped!!

umm sorry to disturb and also quesh 39 ?

 

[marz_katy]

any1 plzzzzzzzzzzzzz explain me mj 2006 ques 30 hw to calc the tym

 

[Lujain M.]

Does nucleus contain ribosomes or in the context u are mentioning?

nucleus has nucleulous which makes ribosomes