Author Topic: Edexcel BIOLOGY Doubts!!!!  (Read 120389 times)

Offline Deadly_king

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #210 on: November 22, 2010, 03:46:43 pm »
Then I am sorry.

No need to say sorry dude. It's alright ;)

It's just that I always try to be specific when explaining but it's really nice to have members like you who are always ready to help :)

Thank you very much for your help  :D

Offline -Cornea

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #211 on: November 23, 2010, 08:49:13 am »
Hey..That's my Biology A.S and i was studying Carbohydrates "Condensation between 2 glucose" so i thought of joining the glucose and fructose i got a stupid shape:D anyway thanks for ur help guys i really appreciate it :$ and tht diagram was really helpful I mean i need a diagram when a glucose is joined with a fructose molecuole :D
and about the unsaturated lipid i know there will be a double bond or a couple of them but how will this differ if we join it to form a triglyceride and if we join a saturated lipid :D
Deadly_king --->thanks iam really grateful:) i hope ur always here to help me out :D :$
Master Key-->thank you :D
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Offline -Cornea

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #212 on: November 23, 2010, 09:28:35 am »
and i got another question the bond in fat-->ester
Carbohydrates-->eg 1,4 glycosidic Bond and in Protein ----> wht's the name of this bond if there is ? I know My Questions Are kind of stupid but iam really freaked out from My.AS as it my first tym :S and iam doing two math units:(
Laughter is the shock absorber that eases the blow of life ! =)

Offline Master_Key

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #213 on: November 23, 2010, 01:34:45 pm »
and i got another question the bond in fat-->ester
Carbohydrates-->eg 1,4 glycosidic Bond and in Protein ----> wht's the name of this bond if there is ? I know My Questions Are kind of stupid but iam really freaked out from My.AS as it my first tym :S and iam doing two math units:(
It's  not always this, it can be 1,6 glycosidic bond as in amylopectin. So just write Glycosidic Bonds.
Protein-NHOC Bonds, Amide bonds.
For AS Levels, I think esters have no specific type of bonds.

Offline Deadly_king

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #214 on: November 23, 2010, 05:07:40 pm »
Hey..That's my Biology A.S and i was studying Carbohydrates "Condensation between 2 glucose" so i thought of joining the glucose and fructose i got a stupid shape:D anyway thanks for ur help guys i really appreciate it :$ and tht diagram was really helpful I mean i need a diagram when a glucose is joined with a fructose molecuole :D
and about the unsaturated lipid i know there will be a double bond or a couple of them but how will this differ if we join it to form a triglyceride and if we join a saturated lipid :D
Deadly_king --->thanks iam really grateful:) i hope ur always here to help me out :D :$
Master Key-->thank you :D


A triglyceride will consist of 3 fatty acids joined b y ester bonds with a glycerol. Any of the three fatty acids, if it contains a double bond will cause the triglyceride to be saturated. ;)

I'll try to help you as much as I can. :D

and i got another question the bond in fat-->ester
Carbohydrates-->eg 1,4 glycosidic Bond and in Protein ----> wht's the name of this bond if there is ? I know My Questions Are kind of stupid but iam really freaked out from My.AS as it my first tym :S and iam doing two math units:(

In protein the main type of bond i peptide or amide bond. But later you'll do the different structures of proteins and the oether bonds which define each one of them. ;)

No worries.......your questions are not stupid. :)

Offline -Cornea

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #215 on: November 24, 2010, 07:46:32 am »
Why it is important to have calcum ions during the process of blood clotting :D? My teacher said i don't really have to know this but iam really curiuos=p
« Last Edit: November 24, 2010, 08:57:58 am by Pink Princess »
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Offline Deadly_king

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #216 on: November 24, 2010, 12:25:57 pm »
Why it is important to have calcum ions during the process of blood clotting :D? My teacher said i don't really have to know this but iam really curiuos=p

Blood clotting is a very complex matter. I'll try to just summarise the bit concerning calcium ions. ;)

Blood cloting involves a process called coagualtion. Blood coagulation is a complex biochemical process involving platelets and dozens of proteins. Activation of platelets triggers a multistep "cascade" that produces a "thrombus" or clot. Calcium is involved at several steps in this cascade, including the activation of the platelets themselves. Coagulation is so dependent on calcium that blood banks routinely add citric acid to banked blood to bind ionized calcium and prevent the product from clotting before it can be used.

I'll advice you to restrict yourself to the syllabus for the time being. I understand that biology is a very interesting subjects which catches your attention easily and makes you wana know more. I've experienced that feeling myself years ago ;D

But please, keep these things outside the syllabus after you have done with your exams. You'll then have the luxury of making research concerning anything yourself. ;)

Offline Master_Key

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #217 on: November 24, 2010, 01:41:39 pm »
A triglyceride will consist of 3 fatty acids joined b y ester bonds with a glycerol. Any of the three fatty acids, if it contains a double bond will cause the triglyceride to be saturated. ;)

I'll try to help you as much as I can. :D

In protein the main type of bond i peptide or amide bond. But later you'll do the different structures of proteins and the oether bonds which define each one of them. ;)

No worries.......your questions are not stupid. :)

There are 5 bonds:-

COVALENT BONDS (mainly peptides for organic proteins, not synthetic) (amide in polyester and other)
IONIC BONDS
HYDROGEN BONDS
DISULPHIDE BONDS
HYDROPHOBIC INTERACTIONS
« Last Edit: November 24, 2010, 02:02:00 pm by Master_Key »

Offline Deadly_king

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #218 on: November 24, 2010, 01:57:48 pm »
There are 4 bonds:-

COVALENT BONDS
HYDROGEN BONDS
DISULPHIDE BONDS
HYDROPHOBIC INTERACTIONS

There is also ionic bonds dude  :D

So in all that makes 5 bonds. I did not mention it because I wanted her to do it in class first. ;)

covalent bonds ----> peptide or amide


Offline Master_Key

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #219 on: November 24, 2010, 02:02:57 pm »
There is also ionic bonds dude  :D

So in all that makes 5 bonds. I did not mention it because I wanted her to do it in class first. ;)

covalent bonds ----> peptide or amide



check above, i thought that that much would be enough for her.

Offline Deadly_king

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #220 on: November 24, 2010, 02:06:37 pm »
check above, i thought that that much would be enough for her.

It should be enough now :D

Nevertheless she should get acquainted to it first in class. ;)

Only if she has doubts or is not understanding something should she consult us.  :)

Else she just might turn lazy. :P

Offline Master_Key

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #221 on: November 24, 2010, 02:07:49 pm »
It should be enough now :D

Nevertheless she should get acquainted to it first in class. ;)

Only if she has doubts or is not understanding something should she consult us.  :)

Else she just might turn lazy. :P

So now we are will answer doubts only, in CIE PHYSICS, CHEMISTRY, BIOLOGY. :P

Offline -Cornea

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #222 on: December 02, 2010, 08:29:24 am »
Guys I srsly need ur help in this ECG  it's killing me =(
Laughter is the shock absorber that eases the blow of life ! =)

Offline Deadly_king

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #223 on: December 02, 2010, 08:34:19 am »
Guys I srsly need ur help in this ECG  it's killing me =(

Sure...................tell us what's killing you?

Offline -Cornea

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Re: Edexcel BIOLOGY Doubts!!!!
« Reply #224 on: December 02, 2010, 08:56:43 am »
It's like so confusing could u plz summarize it using any diagrams:s plzz
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