General Thoughts: Biology (5 Viewers)

[Riproot]

My MC answers. Does anyone have the solutions yet?
1b
2b X C
3b
4c
5b
6d
7b
8d
9c
10d
11a
12b
13a
14b
15b
16a
17d
18a
19a
20c

I think that's the only one.

 

[catalyst91]

So would Cytotoxic T be the correct answer?

In my opinion, yes. That's what I put down and I'm pretty sure that's what they are.. I'm like 90% certain.

Also Wikipedia says (I know they're not very reputable but hey, it consistent with what I'm saying) - "A cytotoxic T cell (also known as TC, CTL, T-Killer cell, cytolytic T cell, CD8+ T-cells or killer T cell) "
So it says Cytotoxic, also known as... so I assume Cytotoxic is the right terminology.

 

[Riproot]

I think they are the same, but I think that Killer T cells is just the name that you call it in school, I'm pretty sure the actual name is Cytotoxic T (Cyto = cell, Toxic = killer) that's how we learnt it in school at least..

Surely, if this was the case both answers would have to be correct.

 

[Sketchkov]

Wow, I don't even know half the shit you guys are saying. I failed it so hard. I wrote 3 lines for the last question of Communication. However, the 6 marker I actually managed a half decent answer. Multiple choice was fail. The exam overall, sucked, and I really would be lucky to scrape a 50. :/

 

[catalyst91]

I think that's the only one.

I agree with Riproot, think 2 should be C, apart from that - it's all good imo

 

[amour]

I think that's the only one.

Thanks damn thats a bummer.

 

[Riproot]

Re: 2011 HSC Biology Paper

This was the one I really struggled with. In the end I went with killer but I think now that may have been wrong.

Me too. :/

 

[amour]

Surely, if this was the case both answers would have to be correct.

In the textbooks i've used, they all call it cytotoxic

 

[catalyst91]

Surely, if this was the case both answers would have to be correct.

Yeah I'm just trying to think in terms of how BOS did when they set this out.
They are essentially the same thing, just different words for them.
Cytotoxic seemed more logical one to choose because I think they were trying to trick people... they usually do, they probably assumed not many people knew what Cytotoxic T did.

 

[catalyst91]

Thanks damn thats a bummer.

haha don't worry, some people got a lot more wrong.
Imo this years paper was way trickier than past papers.
I was acing past papers but this one made you think a lot harder about everything.

 

[Huang-Paradigm]

Question 4 is DNA and Portein. Not A. As for the test, it was a fair paper

 

[2011_]

Re: 2011 HSC Biology Paper

Me too. :/

Arg. If I got that wrong my MC will probably only be 16/20 which is worse than my trials, and all the past papers I did

 

[Huang-Paradigm]

Also, wtf is the difference between Cytotoxic and killer? My teacher told me theyre the same thing..... I chose cytotoxic

 

[2011_]

I agree, 4 is C. And on the cytotoxic / killer thing: I have read about cytotoxic but my class Teacher always said "killer", as do some of my text books. So I got to the exam and thought "What's the difference?". Oh well, got it wrong I guess.

 

[2011_]

Also, wtf is the difference between Cytotoxic and killer? My teacher told me theyre the same thing..... I chose cytotoxic

Take a look at the posts above

 

[kirstyanne-xx]

What stuff did people talk about in the last 7 marker question?
- I talked about how biological advancements in identifying cause of disease (Pasteur/Koch) allowed treatments to be developed such as antibiotics (first developed by Fleming - penicillin) --> overall better health for society.
- Then I talked about Beadle/Tatum and their 'one gene-one polypeptide' hypothesis and how this proved that the mutation of a gene causes different proteins to be produced and therefore different alleles --> new traits. Thus, by irradiating the fungus, the new traits are beneficial for society as it can cure bacterial diseases.
- Then I bs'd the rest about enzymes...
I wasn't exactly sure how to explain the enzyme stuff it gave, but I tried anyway.

I focused one the "implications for society" part and used examples to talk about how technological development raises ethical issues in science. E.g. the use of radiation and its link with producing cancer for the fungus stimulus, then talked about genetic engineering such as cloning and transgenic species and why they raise implications for society and how they can be managed effectively.

 

[1981Grant]

I still can't believe you were unsure of the Y lizard one. I set up the data loggers at our school. XD

Yeah, we go pretty indepth into the syllabus and we are pretty much expected to the third column on our own except for the experiments. I haven't encountered an experiment like that ever, so I pretty much just tried for the most logical choice, which was actually clock as they didn't have demonstrate a timepiece to measure for the second variable.

 

[Forev3r]

I thought the exam was straightforward and easy >.< much much more willing to do this paper than the 3 unit maths =)

 

[danjw]

One of the easiest tests I've done, so pleased!

 

[maung]

Can someone post all the short answer questions.