Biology paper 2 Answers discussion

[huh]

On second thought, I think we both are wrong cos 0.003 Micrometer just dont make sense oh dear!

Don't worry about it man, I could be wrong. Either way for both us, we won't lose full marks because of our method in calculation. Let some more people reply and we'll see what they got.

 

[Bba321]

I got 1.2 micrometers.

 

[22shimmer22girly]

I also got 1.2...

The magnification was 11500

And observed size was 1.4 cm ×10 = 14 mm ×1000=14000 micrometres.

Then simple division

 

[22shimmer22girly]

Hey guys what did u get for where nitrogen is found in an RNA molecule?

 

[Bba321]

Hey guys what did u get for where nitrogen is found in an RNA molecule?

I wrote nitrogenous base....you?

 

[silver slick]

Don't worry about it man, I could be wrong. Either way for both us, we won't lose full marks because of our method in calculation. Let some more people reply and we'll see what they got.

arg i lost 2 marks right? i only had 2 min to do this question so i panicked !!

 

[forsaken]

Did anyone get the Percentage saturation of Haemoglobin as 14%?

yes

 

[22shimmer22girly]

I wrote nitrogenous base....you?

i wrote : It forms part of the component of the phospholipid head.

i have only guessed that btw...i checked on the internet some say its correct so i am not 100% positive.

 

[huh]

i wrote : It forms part of the component of the phospholipid head.

i have only guessed that btw...i checked on the internet some say its correct so i am not 100% positive.

Phospholipid heads are part of the cell membrane structure. RNA is a polynucleotide. Nucleotides are made up of a pentose sugar, a phosphate GROUP and nitrogenous base. Nitrogen should be in nitrogenous base.

 

[huh]

arg i lost 2 marks right? i only had 2 min to do this question so i panicked !!

Not sure man, if it was 4 marks, you probably lost 1 mark, because you didn't convert to micrometer.

 

[ahmadsaeed]

I got 1.21 micrometer in last part. What were the names of 'cell types'? I wrote Cilia and goblet cells as type A, Smooth muscles as type B and Collagen as type C.
and at the last they asked in which part Collagen is found, I wrote Trachea and Bronchi.

 

[ahmadsaeed]

Anyone who sat for practical 33? How was it? I am appearing for 34 on 4th of november . TENSION AT ITS PEAK !

 

[Bba321]

Yeah m

I got 1.21 micrometer in last part. What were the names of 'cell types'? I wrote Cilia and goblet cells as type A, Smooth muscles as type B and Collagen as type C.
and at the last they asked in which part Collagen is found, I wrote Trachea and Bronchi.

Yeah me too.

 

[shaminou]

guess so?? how was yours?

Ok. But lengthy (15 pages question).

 

[Saad Amjad.]

following.

 

[huh]

I got 1.21 micrometer in last part. What were the names of 'cell types'? I wrote Cilia and goblet cells as type A, Smooth muscles as type B and Collagen as type C.
and at the last they asked in which part Collagen is found, I wrote Trachea and Bronchi.

You sure its collagen? I wrote cartilage, because it's in gaseous exchange.

 

[ahmadsaeed]

Oh my God. Yeah it was cartilage, I wrote Collagen by mistake

 

[22shimmer22girly]

Phospholipid heads are part of the cell membrane structure. RNA is a polynucleotide. Nucleotides are made up of a pentose sugar, a phosphate GROUP and nitrogenous base. Nitrogen should be in nitrogenous base.

Oh ok thankzz

 

[forsaken]

how does the bacteria enter the roots?
whats the answer for that?

through pinocytosis

 

[ahmadsaeed]

I wrote that the bacteria when enter through the wound (mentioned in the question) they enter xylem vessels, and through them ,along with water, they enter the roots.