Biology MCQ, O/N 2007

[abcde]

@scouserlfc: There's no denying that oxygen is a neutral gas but the point you're missing is that the REMOVAL of CO2 during PHOTOSYNTHESIS results in an ALKALINE solution!

 

[abcde]

@Nibz: I got your words! HAHAHAHA.. but 'dhaniwaal' is what I'm unable to fathom out! What's that?

 

[scouserlfc]

see but water or the thing the plant is being kept in a neutral solution because in the begining it is orange coloured so if u remove acid it doesnt mean that it will become alkaline think

 

[Nibz]

See your URDU (Hindi ) sucks BIG TIME!
I said, "Dhaniwaaad." Hindi word

 

[scouserlfc]

what does that mean can i know

 

[Nibz]

Scouser tu tou barha taiz niklaa.. Kya baat hey!

 

[abcde]

Really really confused here! :? :?

 

[scouserlfc]

still okay lets see what is the confusing part tell us .

 

[scouserlfc]

Scouser tu tou barha taiz niklaa.. Kya baat hey!

shukria shukria , aadaab!!

 

[abcde]

@Nibz: I am least interested in Hindi. Urdu is my language! Stop diverting the topic...

 

[Nibz]

G aap confuse na hooo.. that scouser is right!! and I AM A HAPPY PERSON now! Cuz mera time bachat hogya!!

n Dhaniwaad means THANK YOU!

 

[scouserlfc]

see if u dont understand read the Question again and try to understand.

before the experiment starts the colour is orange indicating that PH = 7 when nothing happens so

when the experiment starts.

in test tube one .
as there is a cover out side the plant gets the feeling that it is night and therefore respires.

while in test tube 2 the plant gets light and starts taking Co2 for photosynthesis and gives out oxygen see taking in Co2 brings the PH to 7 and not higher because no alkaline substance is there,

 

[scouserlfc]

did u get it.

 

[Nibz]

It's simple now!
I didn't read that report pehley! Varna it's written saaf saaf there!

 

[scouserlfc]

yeah the examiner is always correct i guess he is never wrong

 

[abcde]

If you guys have access to oct/nov 1999 paper 1, kindly check out question 8 and let me know! (from Pure Biology)

 

[scouserlfc]

ok im goin i have to study coincidentally for Bio exam tomorrow so if u have any problems ask dont think that u are making fun of ur self or you are putting a burden on us trying to explain this dont worry try to understand if not do ask.

ill check that now wait i remember i had that old pastpaper.

Name the topic.

 

[abcde]

Then one of the mark schemes is wrong? I'm talking about the one Nibz posted. And Nibz, you insulted my eye sight for nothing! How DARE you do that?
@scoulserfc: thank you! Yes of course I will. The topic is obviously plant nutrition.

 

[Nibz]

Look, there is another possibility! Not all the CO2 is used up! It's only its concentrations which has decreased after 3 hours! Innit?

 

[scouserlfc]

the answer to abcde new question is A