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August 21, 2019, 11:25:37 pm

Author Topic: VCE Biology Question Thread  (Read 1307221 times)  Share 

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Sine

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Re: Re: VCE biology question thread
« Reply #11835 on: July 16, 2019, 09:47:30 pm »
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I'm in some major trouble here friends![/b][/size] I was wondering if anyone has any good ways to remember all that has been taught and all that I've learnt in Biology. I just joined the second semester of VCE Biology Unit 1 and 2 and I was just wondering if anyone had any good tips to help me memorize the content and do well in Biology in the next two years. Also, I was just wondering if help me out with question answering, as I know that in Biology certain terms and phrases must be included, how would I know what to include to get the full marks or if I have written enough for the full marks even after looking at how much a mark is worth?

Thank you all for taking the time to look at this and maybe you could help me out?
As for units 1 and 2 don't worry too much - other than basic biological concepts that come up everywhere it won't be covering most of 3/4 biology which is what actually matters.

I think more recently, biology is less about memorising the content rather the understanding and application of knowledge to certain scenarios and circumstances. Still, you obviously need to know your stuff but straight definition questions are quite a rarity these days. I think everyone is different in terms of memorising - I never actively memorised stuff but tend to remember once I looked over certain stuff multiple times.

For phrases and words required - you definitely need to know a few of these and they are mostly found but completing practice questions/exams so you end up reusing similar answers later on.

Erutepa

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Re: VCE Biology Question Thread
« Reply #11836 on: July 16, 2019, 10:06:37 pm »
+2
Hey everyone,
I'm currently a year 10 student doing year 11 biology and I only just joined the class this semester due to a surplus of students in the first semester. I was wondering if there are any tips to do well in Biology and how I could memorize all the concepts and topics that I learn and make notes on. I was also wondering if anyone had any tips or ways I could answer questions to get the full marks because I know biology questions look for certain key terms or phrases, how would I know whether I used the correct ones or just if I have done the question correctly? please help?

Thank you, everyone, for taking the time to look at this comment
Completly agree with sine and Laura here.
I never wrote out any glossaries or worried about specific definitions. I more focused on doing heaps of reading around topics so that I can properly understand them.
Also, you've posted this question here also in the Bio FAQ which is more for the collation of frequently asked questions (as a resource).
For asking questions like the one you have above, its probably best just to ask it here on this thread (just for future reference) :)
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ErnieTheBirdi

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Re: VCE Biology Question Thread
« Reply #11837 on: July 17, 2019, 07:30:13 am »
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Hey Laura thanks for your help, I'll take your advice on board and I'll take a look at the resources you gave. Thankyou

laura_

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Re: VCE Biology Question Thread
« Reply #11838 on: July 18, 2019, 03:06:17 pm »
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Hey guys!
What is a potato tuber and how does it produce offspring?

Does anyone know how many offspring vegetative reproduction works?

Thanks!!
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brothanathan

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Re: VCE Biology Question Thread
« Reply #11839 on: July 21, 2019, 01:31:31 pm »
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Helpp

Would anyone have an example of measuring the appropriate size of one meristematic cell? With the working and calculations. Any form of a meristematic cell is fine.

Thank you  :)
« Last Edit: July 21, 2019, 01:50:50 pm by brothanathan »
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Larz_acccccccccccccccccccccc

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Re: VCE Biology Question Thread
« Reply #11840 on: July 22, 2019, 07:42:02 pm »
+1
Do we need to know about CRISPR technology for unit 4 biology?

Erutepa

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Re: VCE Biology Question Thread
« Reply #11841 on: July 22, 2019, 10:27:04 pm »
+2
Do we need to know about CRISPR technology for unit 4 biology?
You don't need to know about CRISPR and cas 9 gene editing techniques.

What you do need to know is the function of restriction enzymes, ligases and polymerase within DNA manipulation.
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darkz

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Re: VCE Biology Question Thread
« Reply #11842 on: July 22, 2019, 10:28:00 pm »
+2
Do we need to know about CRISPR technology for unit 4 biology?

For the exam, I doubt you'd need to know any specifics about CRISPR, i.e. if they ask you about it, they will provide you with sufficient background information. With that being said, if you do learn about it, in the case that they do use it as a case study on the exam, you will have a slight advantage over others. As for school SACs, always confirm with your teachers, because I know of some schools putting things on SACs that aren't necessarily on the study design.
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FrankieDens

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Re: VCE Biology Question Thread
« Reply #11843 on: July 23, 2019, 05:29:54 pm »
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Hi everyone!

I just got back my U3 AoS 2 SAC back and wow... THANK YOU ALL SO MUCH!  ;D I took in most of the tips from those Study Guides for Bio and I went from a 79% on the first SAC to 89%!! Thank you so much for being such a good resource and answering my questions etc and now I'm getting really excited for the rest of the year learning bio!!  :)

So anyways sorry about that happiness burst and please answer some of my questions (when you have the time of course) ;):

  • Describe what a vaccine against strangle disease may consist of 1 mark
I wrote down 'The foreign antigens of Streptococcus equi' while on the assessment report it said 'the attenuated form of strangles bacteria which still includes the specific antigen'. Do vaccines always contain attenuated pathogens or can it still be 'activated' per say?

Maybe because I haven't revised U3 AoS 1 in a while but here:
  • Which one of the following scenarios is consistent with a prokaryotic pathogen?
     A. The influenza virus is inhaled by unsuspecting person in a lift
     B. Misshapen prions are consumed because a person ate undercooked brain
     C. The malarial plasmodium (protist) is transferred from a host to another person via a mosquito vector
     D. A cholera bacterium is consumed by drinking water
* I picked C but the answer is D... is it because I got confused with the whole eukaryotic vs prokaryotic thing? If so, what specific organisms are categorised under eukaryotes or prokaryotes? (I'M SORRY THIS MUST BE SUCH A SIMPLE QUESTION BUT I JUST FORGOT LOL  :o)

PhoenixxFire

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Re: VCE Biology Question Thread
« Reply #11844 on: July 23, 2019, 06:27:57 pm »
+3
Hey!

Awesome to hear that those study guides helped :)

Describe what a vaccine against strangle disease may consist of 1 mark

I wrote down 'The foreign antigens of Streptococcus equi' while on the assessment report it said 'the attenuated form of strangles bacteria which still includes the specific antigen'. Do vaccines always contain attenuated pathogens or can it still be 'activated' per say?
Is this something you self marked or something you got wrong? I'd say your answer is fine - it's the antigens that are important. There are several ways to make vaccines, one of which is to use an attenuated form, another of which is just to use subunits (ie. antigens) and it'd be unreasonable to expect you to know which type of vaccine they're after.

Maybe because I haven't revised U3 AoS 1 in a while but here:
Which one of the following scenarios is consistent with a prokaryotic pathogen?
     A. The influenza virus is inhaled by unsuspecting person in a lift
     B. Misshapen prions are consumed because a person ate undercooked brain
     C. The malarial plasmodium (protist) is transferred from a host to another person via a mosquito vector
     D. A cholera bacterium is consumed by drinking water
* I picked C but the answer is D... is it because I got confused with the whole eukaryotic vs prokaryotic thing? If so, what specific organisms are categorised under eukaryotes or prokaryotes? (I'M SORRY THIS MUST BE SUCH A SIMPLE QUESTION BUT I JUST FORGOT LOL  :o)
Yeah protists are eukaryotes, it's just archea and bacteria that are prokaryotes.
« Last Edit: July 23, 2019, 06:41:20 pm by PhoenixxFire »
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Chocolatemilkshake

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Re: VCE Biology Question Thread
« Reply #11845 on: July 29, 2019, 08:04:35 pm »
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Hi everyone,

Is PCR usually completed on a DNA sample prior to being run on gel electrophoresis?

Thanks!
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darkz

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Re: VCE Biology Question Thread
« Reply #11846 on: July 29, 2019, 08:06:17 pm »
+2
Hi everyone,

Is PCR usually completed on a DNA sample prior to being run on gel electrophoresis?

Thanks!

Yep, PCR is used so that there would be enough DNA present to be able to show clear bands on the gel.
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DBA-144

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Re: VCE Biology Question Thread
« Reply #11847 on: July 29, 2019, 09:06:32 pm »
+1
Does genetic bottleneck refer to the reduction in population size or reduction in genetic diversity in the population. I think the first kind of implies the other, right?

nianid

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Re: VCE Biology Question Thread
« Reply #11848 on: July 30, 2019, 09:38:40 am »
+4
Does genetic bottleneck refer to the reduction in population size or reduction in genetic diversity in the population. I think the first kind of implies the other, right?

Both really as one follows the other. Genetic bottleneck effect is part of genetic drift where a random chance event will alter the allele frequency of a population. In the bottleneck effect, a random chance event (such as a flood) will alter the allele frequency of a population due to reducing the population (again randomly is really important, organisms die by chance, not due to not possessing  a phenotype with a higher adaptive value) . The few survivors (By chance) are unrepresentative of the original population and there is a smaller gene pool (reduction in genetic diversity) and a smaller variety of alleles in the gene pool due to loss of alleles from loss of species within a population. Hope this helps!
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Geoo

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Re: VCE Biology Question Thread
« Reply #11849 on: August 01, 2019, 09:44:22 pm »
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Hi,
I am currently doing the unit 4 poster, and I was wondering if it is ok to reuse the topic I did for my unit 3 poster. It is on photosynthesis, and how different colours of light (wavelengths) affect the rate of photosynthesis. I am using a different experiment to do this, but it is still the same topic, is this ok that i reuse it? I know it is based on methodology, but.....
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