Qualification > Sciences
Biology Paper 1
cashem'up:
--- Quote from: unknown 101 on May 23, 2010, 06:48:26 pm ---answer is A because if u look at the other options :
B cell division ( can not occur because there is no nucleas in the RBC, this is to increase volume available for oxygen transport )
C phagocytosis ( does not have any lysosomes, so it cannot be this option )
D protein synthesis ( as there is no nucleas, thus no DNA is present, so mRNA cannot be formed and so proteins can not be made even if there were any ribosomes )
hope you understood :)
--- End quote ---
haha thanks man did the same thing ;) this much i had gotten easily bt now try and prove A wrong even u can do that
no mitochondria........so active transport not possible....
hmmm......i tried other conclusions.......nodin seems to fit..
unknown 101:
--- Quote from: ima_shah2002 on May 23, 2010, 07:54:00 pm ---haha thanks man did the same thing ;) this much i had gotten easily bt now try and prove A wrong even u can do that
no mitochondria........so active transport not possible....
hmmm......i tried other conclusions.......nodin seems to fit..
--- End quote ---
this is the stupidest question ever, veryyyyy confusing, but i think they were testing people to see if they knew that RBCs did not have a nucleas! :)
cashem'up:
EXACTLY............but i am sure they cannot quote wrong info is it by chance possible that mature rbc takes O2 from low conc to high...........this is just a hypothesis who noes ???
ruby92:
--- Quote from: unknown 101 on May 23, 2010, 05:42:10 pm ---anytime ;)
nov 06 :
it tells you to measure the size of a chloroplast ( measure the big one between 60 -70, its about 8 )
now from the first part of the question it shows u that:
1 unit on the stage micrometer = 80 units on the ocular eyepeice
so that means that
if... 1 = 80
then. x = 8
cross multiply ( 8/80 = 0.1)
and since the stage micrometer has small divisions of 0.1 mm, multiply the answer to the top part ( 0.1 ) by 100 to get ur answer in micrometres ( which will become 0.1 x 100 = 10 micrometres)
so the answer is B
hope this helped... :)
--- End quote ---
;D ;D ;D
thnkxxxxxxxxxxxx
unknown 101:
--- Quote from: ima_shah2002 on May 23, 2010, 08:27:57 pm ---EXACTLY............but i am sure they cannot quote wrong info is it by chance possible that mature rbc takes O2 from low conc to high...........this is just a hypothesis who noes ???
--- End quote ---
maybe they thought it couldve been possible before, but now its proven wrong, but again who knows except god ???
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