Qualification > Sciences
ALL CIE BIOLOGY DOUBTS HERE !!!
Deadly_king:
I think am a bit late. :-[
Am sorry I could not come online earlier but i was busy with Eid. :-\
However if you still want any clarifications concerning the questions below, do tell me. ;)
Dania:
--- Quote from: Deadly_king on November 18, 2010, 10:24:41 am ---I think am a bit late. :-[
Am sorry I could not come online earlier but i was busy with Eid. :-\
However if you still want any clarifications concerning the questions below, do tell me. ;)
--- End quote ---
It's alright. I managed to figure most of them out.
Deadly_king:
--- Quote from: Dania on November 18, 2010, 10:31:59 am ---It's alright. I managed to figure most of them out.
--- End quote ---
Ooh.....that's nice if you figured out by yourself. :D
Anyway hope you managed well in the exams. :)
**RoRo**:
Quick question! :D
State 2 properties of water [other than boiling point and latent heat of evaporation] which make it suitable as a transport medium in the mammalian blood system.
I know 1, it's an excellent solvent for ions and polar molecules, but what can the second one be?
Thank you in advance!! :)
Deadly_king:
--- Quote from: The Secret on November 21, 2010, 09:03:06 pm ---Quick question! :D
State 2 properties of water [other than boiling point and latent heat of evaporation] which make it suitable as a transport medium in the mammalian blood system.
I know 1, it's an excellent solvent for ions and polar molecules, but what can the second one be?
Thank you in advance!! :)
--- End quote ---
The second one is the surface tension or strong cohesive force.
Water molecules tend to be attracted to each other and stick to each other by hydrogen bonding. So water molecules have high cohesion. This makes water in long tubes, such as in this case blood vessels, exists as a long continuous or unbroken column.
Hope it's clear :)
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