biology paper 1 doubts

[xtremeforums]

Then what is it ???

i think it shouldve been the h bonds stabilizing the membrane. Thats done by the glycolipids and glycoproteins.
And i dont know why so many people think that glycolipids and glycoproteins are part of the phospholips..
They are different distinct structures..

 

[xtremeforums]

I dont know if this question has been discussed here before or not,
Increasing which component increases the fluidity of the membrane?
I was confused between cholestrol or glycolipids.
What did u all choose?

 

[♥Яαηõõşḧ♥]

I dont know if this question has been discussed here before or not,
Increasing which component increases the fluidity of the membrane?
I was confused between cholestrol or glycolipids.
What did u all choose?

Cholestrol

 

[yazan1995]

I dont know if this question has been discussed here before or not,
Increasing which component increases the fluidity of the membrane?
I was confused between cholestrol or glycolipids.
What did u all choose?

cholestrol

 

[yazan1995]

what was the diploid no.? 4o ryt?

 

[xtremeforums]

what was the diploid no.? 4o ryt?

yupp..

 

[xtremeforums]

cholestrol

Cholestrol

hmmm. but doesnt the cholestrol just maintain the rigidity. How is increasing it going to increase the fluidity?
i chose glycolipids. The lipid tail could be an unsaturated fatty acid chain, therefore increasing the kinks and the fluidity... no..?

 

[nelly trich]

guys what is the hydrostatic bond ??

 

[Idolfanatic95]

the option ddnt say "fatty acids" it said fatty deposits or something like that.
And yes, they do get deposited in the arteries and veins, which narrows the diameter of the blood vessel (possibly the coronary artery) therefore reducing the blood supply (oxygen and nutrients) to the heart. Reduced oxygen to the cardiac muscle, the heart fails to work, ie. heart attack.

Yes sorry i meant fat deposits. Artery yes im sure it does its work there but veins well i was doubtful.

 

[Idolfanatic95]

what was the diploid no.? 4o ryt?

Yep 40

 

[yazan1995]

guys what is the hydrostatic bond ??

ohh for that question i choosed tertiary C

 

[yazan1995]

hmmm. but doesnt the cholestrol just maintain the rigidity. How is increasing it going to increase the fluidity?
i chose glycolipids. The lipid tail could be an unsaturated fatty acid chain, therefore increasing the kinks and the fluidity... no..?

hmm that makes sense actually but i choosed Cholestrol

 

[Nishii]

What about the first question? which objective/eyepiece lens would show the greatest number of cells?

 

[yazan1995]

What about the first question? which objective/eyepiece lens would show the greatest number of cells?

A (x5 x10)

 

[ZohaibAsad]

hmm that makes sense actually but i choosed Cholestrol

there's a difference between a glycolipid and a phospho lipid. The cholestrol guy got it right.

 

[ijjukittu]

How many of u are 100% sure about the question which says ' which bonds were effected on the beta-chain of the heamogloin'??? I did primary,secondary & tertiary bonds! & i have a strong logic behind that!!!!.....But few ppl are saying for 'primary only'.......
Which one You guys wrote????

 

[Idolfanatic95]

ohh for that question i choosed tertiary C

I chose tertiary too. Any idea if that's correct?

 

[ijjukittu]

I chose tertiary too. Any idea if that's correct?

Look i have a logic behind this! If aminoacid such as gulatimic acid replaces valine ( this takes place at the beta-chain! and the question also mentiones about the beta-chain)...making haemoglobin insoluble...then it would ultimately effect the tertiary bonds too!!! Same just as in enzymes

 

[yazan1995]

there's a difference between a glycolipid and a phospho lipid. The cholestrol guy got it right.

i hope cholestrol is correct

 

[Fatima18]

Which paper r u guys discussing bout?