ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: Martoman on May 14, 2010, 12:12:47 pm

Title: polysaccharides
Post by: Martoman on May 14, 2010, 12:12:47 pm
Do we need to know what makes up things like maltose and such? They are easy to remember, its just one more thing in the pile of things.
Title: Re: polysaccharides
Post by: naved_s9994 on May 14, 2010, 04:47:18 pm
Im not sure about your question.. but its not really too hard to remember them though??


Title: Re: polysaccharides
Post by: kenhung123 on May 14, 2010, 04:50:07 pm
hmmmm...umm probably not? Your asking as in know which monosacs combine to form a particular polysac right? Maybe just know a few examples of mono, di and polysacs
Title: Re: polysaccharides
Post by: akira88 on May 14, 2010, 06:20:56 pm
The data booklet has the structure of sucrose in it, and we know that it is a combination of glucose and fructose. With this, we already have all the information we need to draw maltose- maltose is two glucose molecules together and since we have the glucose molecule in the sucrose molecule, we know how to draw it :D
Lol if that makes any sense..
Title: Re: polysaccharides
Post by: crayolé on May 14, 2010, 06:23:20 pm
Quote from: akira88 on May 14, 2010, 06:20:56 pm
The data booklet has the structure of sucrose in it, and we know that it is a combination of glucose and fructose. With this, we already have all the information we need to draw maltose- maltose is two glucose molecules together and since we have the glucose molecule in the sucrose molecule, we know how to draw it :D
Lol if that makes any sense..
Exactly what i was going to say ;D
From this we also know how to draw fructose(glucose+fructose = sucrose)
I doubt we would need to know much more as biomolecules isnt a widely tested area on the paper
Title: Re: polysaccharides
Post by: coletrain on May 14, 2010, 08:05:48 pm
polysaccharides are made up of mono-saccharides, and disaccharides are made up two mono-saccharides aren't they?
Title: Re: polysaccharides
Post by: physics on May 14, 2010, 09:20:49 pm
its in the data book so its easy to draw i suppose :P good luck!
Title: Re: polysaccharides
Post by: physics on May 14, 2010, 10:17:59 pm
Quote from: cherylim23 on May 14, 2010, 10:15:02 pm
how about lactose? :P
on the data booklet glucose is on one  side of the surcose molecule (LHS) and then pn that same molecule u swap the end H and OH bond so that hte OH would be on top and the O at the bottom and that gives galactose so when u join these u get lactose :)
Title: Re: polysaccharides
Post by: superflya on May 14, 2010, 10:20:16 pm
Quote from: coletrain on May 14, 2010, 08:05:48 pm
polysaccharides are made up of mono-saccharides, and disaccharides are made up two mono-saccharides aren't they?

yea the di gives it away.

Quote from: cherylim23 on May 14, 2010, 10:15:02 pm
how about lactose? :P

galactose + glucose.
Title: Re: polysaccharides
Post by: kenhung123 on May 15, 2010, 12:09:00 am
If you know it, why are you concerned whether you need to know it? O.o
Title: Re: polysaccharides
Post by: superflya on May 15, 2010, 12:10:09 am
lol why do u know all this stuff already >.>
Title: Re: polysaccharides
Post by: superflya on May 15, 2010, 06:41:30 pm
uve already done 3/4 bio? -.-