Biology Paper 1

[cashem'up]

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

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]

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..

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]

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...

thnkxxxxxxxxxxxx

[unknown 101]

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

maybe they thought it couldve been possible before, but now its proven wrong, but again who knows except god

[unknown 101]

thnkxxxxxxxxxxxx

your welcome