Login

Search the forums now!

Welcome, Guest. Please login or register.

August 26, 2025, 02:59:59 am
Pages: 1 [2] 3 4 5   Go Down

Author Topic: Biomedicine Question Thread  (Read 12029 times)  Share 

0 Members and 1 Guest are viewing this topic.

Belgarion

  • Victorian
  • Forum Leader
  • ****
  • Posts: 541
  • Respect: +18
  • School: BB College
  • School Grad Year: 2012
Re: Biomedicine Question Thread
« Reply #15 on: April 15, 2013, 06:09:37 pm »
0
how was the first mid semester test? Don't post any questions or anything, just want to know the difficulty even though im sure they will alter it from group to group.
Logged
Bachelor of Biomedicine III @ UniMelb
Major: Cell and Developmental Biology

golden

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1065
  • Sharpshot
  • Respect: +102
  • School: VSC
  • School Grad Year: 2011
Re: Biomedicine Question Thread
« Reply #16 on: April 23, 2013, 12:46:24 pm »
0
Who is currently lecturing for BIOM10002 and CHEM10006?
Logged
2014: Microbiology/Immunology Major.

Thanks to (alphabetical order):
2010: appianway. 2011: Kamil9876, laseredd, xZero. 2012: dc302, harper, marr.
Multiple times: pi, Russ, stonecold, TT.

M-D

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 227
  • Respect: 0
Re: Biomedicine Question Thread
« Reply #17 on: April 23, 2013, 01:04:27 pm »
+1
there's Professor Matthew Digby for BIOL100002 and Professor Abraham for CHEM10006
Logged

ferrsal

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 238
  • Respect: +25
Re: Biomedicine Question Thread
« Reply #18 on: April 23, 2013, 06:47:47 pm »
+3
Oh man, exams are in in a month and a half. Is anyone struggling to keep up with the work? I feel like I barely catch up on the weekend, and then the new material that week drowns me completely. Hoping I have enough time for some proper revision ...  :(
Logged
2013-2015: BBiomed @ UoM

golden

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1065
  • Sharpshot
  • Respect: +102
  • School: VSC
  • School Grad Year: 2011
Re: Biomedicine Question Thread
« Reply #19 on: April 23, 2013, 07:02:21 pm »
+1
Quote from: M-D on April 23, 2013, 01:04:27 pm
there's Professor Matthew Digby for BIOL100002 and Professor Abraham for CHEM10006

Professor Matthew Digby wasn't the lecturer for last year (BIOM10002), but Professor Abraham was (CHEM10006) and he was awesome. He is very polite, friendly and great at what he does.

Quote from: ferrsal on April 23, 2013, 06:47:47 pm
Oh man, exams are in in a month and a half. Is anyone struggling to keep up with the work? I feel like I barely catch up on the weekend, and then the new material that week drowns me completely. Hoping I have enough time for some proper revision ...  :(

Don't be sad. Be happy at the idea that this is the lowest workload you will get whilst at Uni. It gets worse later apparently. A lot.

But don't worry, you'll get better at what you do. Just hold on.
« Last Edit: April 23, 2013, 07:05:45 pm by golden »
Logged
2014: Microbiology/Immunology Major.

Thanks to (alphabetical order):
2010: appianway. 2011: Kamil9876, laseredd, xZero. 2012: dc302, harper, marr.
Multiple times: pi, Russ, stonecold, TT.

Destiny

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 233
  • Respect: +22
  • School: The Time Lord Academy.
Re: Biomedicine Question Thread
« Reply #20 on: April 28, 2013, 05:23:31 pm »
0
Do we get a periodic table for our CHEM10006 exam?
Logged

Belgarion

  • Victorian
  • Forum Leader
  • ****
  • Posts: 541
  • Respect: +18
  • School: BB College
  • School Grad Year: 2012
Re: Biomedicine Question Thread
« Reply #21 on: April 28, 2013, 05:38:19 pm »
0
Quote from: Destiny on April 28, 2013, 05:23:31 pm
Do we get a periodic table for our CHEM10006 exam?
My tutor said we dont. She said all we have to know is the first 30 elements.
Logged
Bachelor of Biomedicine III @ UniMelb
Major: Cell and Developmental Biology

Shenz0r

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1875
  • Respect: +410
Re: Biomedicine Question Thread
« Reply #22 on: April 28, 2013, 05:49:43 pm »
0
I don't even remember the first 20 elements...
Logged
2012 ATAR: 99.20
2013-2015: Bachelor of Biomedicine (Microbiology/Immunology: Infections and Immunity) at The University of Melbourne
2016-2019: Doctor of Medicine (MD4) at The University of Melbourne

Destiny

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 233
  • Respect: +22
  • School: The Time Lord Academy.
Re: Biomedicine Question Thread
« Reply #23 on: April 29, 2013, 07:07:00 pm »
0
Ah crap! Learning that now.
Would anyone know how to do this question?

Logged

golden

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1065
  • Sharpshot
  • Respect: +102
  • School: VSC
  • School Grad Year: 2011
Re: Biomedicine Question Thread
« Reply #24 on: April 29, 2013, 07:14:15 pm »
0
Clues:
Make sure you address the + and - part first.
Think about what borohydride would do to the sugar.
Satisfy all the requirements of the question.
« Last Edit: April 29, 2013, 07:18:36 pm by golden »
Logged
2014: Microbiology/Immunology Major.

Thanks to (alphabetical order):
2010: appianway. 2011: Kamil9876, laseredd, xZero. 2012: dc302, harper, marr.
Multiple times: pi, Russ, stonecold, TT.

Destiny

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 233
  • Respect: +22
  • School: The Time Lord Academy.
Re: Biomedicine Question Thread
« Reply #25 on: April 29, 2013, 09:25:23 pm »
0
It's related to threose, which means that it is Gulose, Idose, Galactose or Talose: So B, C or D.
Borohydride reduces the sugar - it is a source of hydride anions, but I don't think that that helps here as there are the same hydroxy/aldehyde groups on all molecules. I can't narrow down the answer any further. I assume that D/L are related to clockwise/anticlockwise rotation, but texts say otherwise.
Anticlockwise is -ve, but again, no relation to Dextrorotation or levorotation
« Last Edit: April 29, 2013, 09:27:19 pm by Destiny »
Logged

Shenz0r

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1875
  • Respect: +410
Re: Biomedicine Question Thread
« Reply #26 on: April 29, 2013, 10:46:16 pm »
0
I think you can knock off C.

D-Idose and D-Threrose both rotate polarised light in an anticlockwise direction (so both are -), but F is related to the enantiomer that rotates it in a clockwise direction. As enantiomers rotate polarised light in opposite directions, the (+)-threrose, I think, would have to be the L-form, and so would the Idose. So C is gone.

Sodium borohydride would reduce the sugar so that the aldehyde group is converted into a primary alcohol right? That's reflected in the two extra hydrogens being added onto the compound. But that doesn't get rid of B or D. They're both optically inactive because the first carbon doesn't have four different groups, making it symmetrical.

I can't differentiate between the two options.
« Last Edit: April 29, 2013, 10:55:06 pm by Shenz0r »
Logged
2012 ATAR: 99.20
2013-2015: Bachelor of Biomedicine (Microbiology/Immunology: Infections and Immunity) at The University of Melbourne
2016-2019: Doctor of Medicine (MD4) at The University of Melbourne

golden

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1065
  • Sharpshot
  • Respect: +102
  • School: VSC
  • School Grad Year: 2011
Re: Biomedicine Question Thread
« Reply #27 on: April 30, 2013, 08:10:02 am »
0
Quote from: Destiny on April 29, 2013, 09:25:23 pm
Anticlockwise is -ve, but again, no relation to Dextrorotation or levorotation
D or L as being either positive or negative is provided in this question for these set of examples.

Quote from: Shenz0r on April 29, 2013, 10:46:16 pm
I think you can knock off C.

Sodium borohydride would reduce the sugar so that the aldehyde group is converted into a primary alcohol right? That's reflected in the two extra hydrogens being added onto the compound. But that doesn't get rid of B or D. They're both optically inactive because the first carbon doesn't have four different groups, making it symmetrical.

I can't differentiate between the two options.

Just because there are two groups which 'appear' to be the same (but are not actually so) doesn't mean that there isn't optical activity. I guess a way you could think of it is in chemistry even though molecules have the same numbers of atoms and elements in it, they can still be different. Even if they have the same bonds, they can still be different (stereoisomers).
« Last Edit: April 30, 2013, 08:19:45 am by golden »
Logged
2014: Microbiology/Immunology Major.

Thanks to (alphabetical order):
2010: appianway. 2011: Kamil9876, laseredd, xZero. 2012: dc302, harper, marr.
Multiple times: pi, Russ, stonecold, TT.

ferrsal

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 238
  • Respect: +25
Re: Biomedicine Question Thread
« Reply #28 on: April 30, 2013, 07:33:23 pm »
0
Hey where was that question from? I finished the exam wiki stuff but desperately need more practice
Logged
2013-2015: BBiomed @ UoM

Destiny

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 233
  • Respect: +22
  • School: The Time Lord Academy.
Re: Biomedicine Question Thread
« Reply #29 on: April 30, 2013, 07:44:52 pm »
0
Quote from: ferrsal on April 30, 2013, 07:33:23 pm
Hey where was that question from? I finished the exam wiki stuff but desperately need more practice
What's the point of doing the exam Wiki? They don't have ANY answers and you just lost your best source of practice for right before the the exam.
That's the 2009 paper.
Logged
Pages: 1 [2] 3 4 5   Go Up