Biology Exam: Answers and Discussion!

[nerdmmb]

I honestly didn't even know what to draw. My mind just went completely blank because i never thought they would actually ask that. I drew a diagram which included the carboxyl group, the amine group, the R group and the hydrogen group and forget about the carbon group. Mind you, they were all over the place. I really wish they give us all full marks for that one. I'm so devastated

[Reus]

I honestly didn't even know what to draw. My mind just went completely blank because i never thought they would actually ask that. I drew a diagram which included the carboxyl group, the amine group, the R group and the hydrogen group and forget about the carbon group. Mind you, they were all over the place. I really wish they give us all full marks for that one. I'm so devastated

At least you drew something!

[nerdmmb]

At least you drew something!

What did you do for that question?

[Reus]

What did you do for that question?

DNA -  drew a nucleotide. HAHA screwed.

[nerdmmb]

DNA -  drew a nucleotide. HAHA screwed.

Nah you're right. It asked us to draw both monomers of the macromolecules.

And I don't know why but I have the feeling that 3 out of the 4 marks may be for the nucleotide because it's got 3 parts so I hope we got that right atleast

[Stick]

Did anyone manage to get a copy of the short answer? This is the part I'm mainly interested in seeing.

[dankfrank420]

Nah you're right. It asked us to draw both monomers of the macromolecules.

And I don't know why but I have the feeling that 3 out of the 4 marks may be for the nucleotide because it's got 3 parts so I hope we got that right atleast

Wait wasn't two marks for naming nucleic acid/polypeptide and another two for the monomers?

Edit: We didn't have to name the monomers did we? Just draw them?

[nerdmmb]

Wait wasn't two marks for naming nucleic acid/polypeptide and another two for the monomers?

Edit: We didn't have to name the monomers did we? Just draw them?

Oh wait, sorry I get you know yeah that makes more sense
The first part asked us to name 'macromolecule 1' and 'macromolecule two'.

[dankfrank420]

I think we did if I'm not mistaken. Because the first part asked us to name 'macromolecule 1' and 'macromolecule two'
But you probably got it right, the stress is just getting to us right now.

Dunno, because I guess you have to infer the monomers from your answers above - naming them is kind of redundant.

yeah, should probably stop stressing. What's done is done.

[Reus]

Did anyone manage to get a copy of the short answer? This is the part I'm mainly interested in seeing.

@milica96 said she'll put up the SA tomorrow.

[heymanhru]

I honestly didn't even know what to draw. My mind just went completely blank because i never thought they would actually ask that. I drew a diagram which included the carboxyl group, the amine group, the R group and the hydrogen group and forget about the carbon group. Mind you, they were all over the place. I really wish they give us all full marks for that one. I'm so devastated

lol exactly the same thing here! i just drew a circle in a middle out of desperation.

[tiah]

So how did it go? Was it harder than last year's exam?

Proposed answers within the spoiler!

Spoiler

1 C
2 C
3 A
4 B
5 B
6 A
7 B
8 D
9 C
10 A
11 D
12 D
13 C
14 C
15 B
16 A
17 D
18 C
19 B
20 A
21 D
22 A
23 B
24 C
25 A
26 B
27 A
28 B
29 C
30 B
31 D
32 C
33 A
34 C
35 D
36 A
37 C
38 D
39 B
40 C

>>Here<< is a copy of the 2014 MCQ. Thanks a heap to milica96 for taking the time to scan the exam and to write her answers on it. Credit to Mr T-RAV for hyperlinking the OP and verifying answers.

for 27 though it said they were distantly related, so how could it be A?

[Reus]

for 27 though it said they were distantly related, so how could it be A?

Read the rest, it says "from different families" I thought the same until i read the whole question haha.

[katiesaliba]

Read the rest, it says "from different families" I thought the same until i read the whole question haha.

Just to add to this, it also says distantly related as opposed to 'recent common ancestor'. Every organism is distantly related theoretically, so the keyword 'recent' is missing which infers convergent evolution (especially when considering the structures with similar purposes)

[Vicbelgaus]

Just to add to this, it also says distantly related as opposed to 'recent common ancestor'. Every organism is distantly related theoretically, so the keyword 'recent' is missing which infers convergent evolution (especially when considering the structures with similar purposes)

Also just to add to this when you read the scientific names of the two cacti plants they came from different genera, as they had different genus names