Qualification > Sciences
Biology Paper 2
nid404:
I wish I knew :P
DO NOT TRY TO CHEAT
Sticky:
--- Quote from: nid404 on May 13, 2010, 10:46:05 am ---recko? ::)
--- End quote ---
hahahaha hello =D
no cheating :)
sizbeauty:
suggest the significance of the 5' and 3' endz of the two strandz of the DNA double helix?
suggest briefly why it is thought tht the arrangement of the bases in the nucleic acidz is in the form of a 'triplet code'?(3 markz)
suggest why DNA synthesis takes place in opposite directions on the two separated strandz of the double helix?
plz clear ma confusionz,me givin de paper too tmrw
zwaliji:
--- Quote from: Sticky on May 12, 2010, 10:13:08 pm ---Heyy Guys
Biology Paper 2 On Friday, How Are Your Preparations & Any Doubt or Predictions Please Post Them Here To Help Everyone Out :)
i have a question myself
nov 08, first variant, last question about water
thanks :D
--- End quote ---
water molecules have a partially postive hydrogen and partially negative oxygen so the oxygen on one molecule is attracted to the hydrogen on another. this makes water molecules cohesive and thus they are trasported as a continuous column in plants.
also water hasa high specific heat capacity so the temperature doesn't change quickly.
hydrogen bonding provides surface tension so some insects can live on the surface of water.
water bodies (e.g. lakes) freeze from the top down, thus organisms that live in water don't die as the floating ice acts as an isulator.
lastly it has a high boiling point and a high latent heat of vaporization so it is a liqid over a large range of temps.
hope this helped :)
3ishakay:
what r the maximum marks u can lose in paper 2 to still get an A !?!??!
im basically askint h threshold .. i cant find it anywher .. =/
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version