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A2 Biology | Post your doubts here
nopes i dont think so..i remember seeing questions in section a too..! -
A2 Biology | Post your doubts here
we all need them..!! each of us gotta pray 4 everyone -
A2 Biology | Post your doubts here
Explain why variation is important in selection; 1. ref. continuous / discontinuous variation ; 2. genetic / inherited variation ; 3. variation in phenotype / characteristics / AW ; 4. (can be due to) interaction of genotype and environment ; 5. e.g. of characteristic that influences survival... -
A2 Biology | Post your doubts here
JazakAllahu khairen kaseeran [may Allah reward u loadz] (y) -
HELPP NEEDED! How to solve chemistry paper 5 ?
aoa! go through the guidelines given towards the end of the syllabus for p5...practice a few papers with the help of mark schemes and examiner reports..and you're good to go inshaAllah! -
A2 Biology | Post your doubts here
Explain, with examples, how the environment may affect the phenotype. (N’07 Q:11 b) 1. phenotypic variation results from interaction of genotype and environment / VP = VG + VE ; 2. environment may limit expression of gene(s) / AW ; 3. e.g. for size / mass / height ; 4... -
A2 Biology | Post your doubts here
Aoa wr wb! -How captive breeding programmes in zoos may help in the protection of endangered species? (J’07 Q:1) 1. fewer animals need to be caught (for zoos) ; 2. ref. becoming pregnant ; e.g. IVF / finding a mate 3. reintroduction into the wild ; 4. research easier with captive animals / AW ... -
A Level Last Minute Revision Notes..
aoa got none for chem p5 :( waeyyakum -
A2 Biology | Post your doubts here
Assalamoalaikum wr wb! Describe the process of oxidative phosphorylation in the mitochondria. 1. reduced, NAD / FAD ; 2. passed to ETC ; 3. inner membrane / cristae ; 4. hydrogen released (from reduced, NAD / FAD) ; R H2 5. split into electrons and protons ; 6. protons in matrix ; 7... -
nybody appearing tomorrow bio P4?
pm nopes...i dont..:p i have my exam at 12 pm GMT -
nybody appearing tomorrow bio P4?
nopes :( i have to start revising...havent done anything yet.. although i did go through the chapters in april... -
nybody appearing tomorrow bio P4?
aoa! m appearing too..i dunno what to revise :( -
A Level Last Minute Revision Notes..
Assalamoalaikum wr wb! First post updated..with some bio notes..! [You need to be logged in before you can download them.] -
A2 Biology | Post your doubts here
Assalamoalaikum wr wb!! Describe the main structural features of an ATP molecule. 1. a nucleotide ; 2. with three phosphate groups ; 3. an organic / nitrogenous base / adenine ; 4. a pentose sugar / ribose ; 5. ref. ester linkages / covalent bonds ; ATP is a nucleotide. It consists of... -
A2 Biology | Post your doubts here
whats intraspecific competition... people..tell me what and how to revise... :( i don't feel like studying at all...dunno what to do :( -
A2 Biology | Post your doubts here
Assalamoalaikum wr wb! Explain how all organisms can potentially overproduce; what are we supposed to write for this ....syllabus statement ..for selection and evolution.. -
A2 Biology | Post your doubts here
Assalamoalaikum wr wb!!!! angelgirl:) A biosensor has a layer of immobilized enzyme which catalyses the conversion of glucose to gluconic acid as shown above. A platinum electrode in the biosensor will measure the drop in oxygen concentration, as it is used to make hydrogen peroxide, and... -
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Chemistry physics and Biology paper 5 help
http://www.xtremepapers.com/community/threads/physics-chemistry-bio-p5-help.14696/#post-227170