Login

Welcome, Guest. Please login or register.

March 29, 2024, 05:07:39 am

Author Topic: VCE Biology Question Thread  (Read 3570797 times)  Share 

0 Members and 10 Guests are viewing this topic.

Lani Sweerts

  • Adventurer
  • *
  • Posts: 5
  • Respect: 0
Re: VCE Biology Question Thread
« Reply #13140 on: October 28, 2020, 11:53:11 am »
0
Hey everyone,

Does anyone have any other Unit 3/4 Biology exams other than VCAA? My school has not given us any extra practice so I would appreciate it if you guys could post some more exams for me please!

Thank you  ;D
2020 - 1/2 Italian, 1/2 Methods, 1/2 Legal, 1/2 English, 3/4 Biology, 3/4 Psychology

Aiming for a 90+ ATAR

Sine

  • Werewolf
  • National Moderator
  • Great Wonder of ATAR Notes
  • *****
  • Posts: 5135
  • Respect: +2103
Re: VCE Biology Question Thread
« Reply #13141 on: October 28, 2020, 12:04:20 pm »
+7
Hey everyone,

Does anyone have any other Unit 3/4 Biology exams other than VCAA? My school has not given us any extra practice so I would appreciate it if you guys could post some more exams for me please!

Thank you  ;D
Sorry, we can't really have users posting copyrighted material on these forums.

There are some free practice exams which you can find HERE

It might be useful to ask your teacher or other students whether they have any other exams.

Erutepa

  • VIC MVP - 2019
  • Forum Leader
  • ****
  • Posts: 721
  • evenin'
  • Respect: +775
Re: VCE Biology Question Thread
« Reply #13142 on: October 28, 2020, 02:20:33 pm »
+8
Hey, I had a question about the specific wording when it came to defining pandemic. My teacher said the best word to use was wide spread but another person said to say uncontrolled spread not wide spread. Will it be wrong to use both of their advice and wrutr uncontrolled wide spread infection or will this also be wrong?
Thanks!

Just adding onto what tiredandstressed has said,
the study design states you need to know the difference between an epidemic and pandemic, and so i think you definitions should reflect this difference. I would define them as 'a pandemic is a widespread disease across multiple regions' whereas a epidemic is 'a disease effecting people within a region'. I don't think widespread or uncontrolled are important key terms here - its more the distinction between within region or across multiple regions.
Qualifications
 > Have counted to 227
 > Can draw really good spiders
 > 2 Poet points
 > 6.5 insanipi points
 > 1 Bri MT point

Moonblossom

  • Adventurer
  • *
  • Posts: 22
  • Respect: 0
Re: VCE Biology Question Thread
« Reply #13143 on: October 29, 2020, 07:54:51 am »
+1

Just adding onto what tiredandstressed has said,
the study design states you need to know the difference between an epidemic and pandemic, and so i think you definitions should reflect this difference. I would define them as 'a pandemic is a widespread disease across multiple regions' whereas a epidemic is 'a disease effecting people within a region'. I don't think widespread or uncontrolled are important key terms here - its more the distinction between within region or across multiple regions.
I dont't see any issue with either terms you could easily say "uncontrolled and widespread" personally I would use widespread, since pandemics cross borders and reaches multiple continents. Hope that helps

Thank you for the answers! I got really confysed so this really helped clear things up.

miyukiaura

  • Trendsetter
  • **
  • Posts: 108
  • per aspera ad astra
  • Respect: +3
Re: VCE Biology Question Thread
« Reply #13144 on: October 29, 2020, 08:43:16 pm »
0
Is the water produced in aerobic respiration used in photosynthesis or is it simply released as a by-product out of the plant?
Offering 50 raw English tutoring, PM for details

Erutepa

  • VIC MVP - 2019
  • Forum Leader
  • ****
  • Posts: 721
  • evenin'
  • Respect: +775
Re: VCE Biology Question Thread
« Reply #13145 on: October 29, 2020, 10:18:29 pm »
+3
Is the water produced in aerobic respiration used in photosynthesis or is it simply released as a by-product out of the plant?
Aerobic respiration occurs in the mitochondria, hence this is the site where water is produced (specifically at the end of the ETC on the cristae when oxygen accepts hydrogen ions and electrons). This water produced here then simply joins the rest of the cells's water as part of the cytosol. This water has no specific destination - some of it will eventually leave the plant (i.e. via transpiration), some of it will participate in other reactions (i.e. photosynthesis) and some of it will remain in the cytosol.
It can be confusing sometimes when people say the outputs of cellular respiration are (mostly) the inputs of photosynthesis, but this statement is not so much referring to the specific molecules of water produced, but rather the substance more generally.
Hopefully this clears up the confusion :)
« Last Edit: October 29, 2020, 10:20:36 pm by Erutepa »
Qualifications
 > Have counted to 227
 > Can draw really good spiders
 > 2 Poet points
 > 6.5 insanipi points
 > 1 Bri MT point

Chocolatepistachio

  • Science Games: Silver
  • Forum Obsessive
  • ***
  • Posts: 470
  • Respect: +51
Re: VCE Biology Question Thread
« Reply #13146 on: October 29, 2020, 10:26:08 pm »
+1
For this question would this be a sufficient answer
Describe how the fossil record supports the theory of evolution.

The fossil record supports the theory of evolution as it indicates how life has changed over time and shows the evolution of eukaryotic cells from prokaryotic cells. The fossil record provides evidence of the extinction of species

Coolmate

  • NSW MVP - 2020
  • HSC Moderator
  • Forum Leader
  • *****
  • Posts: 697
  • 🚀🚀Secret to getting ahead: Get Started!
  • Respect: +456
Re: VCE Biology Question Thread
« Reply #13147 on: October 30, 2020, 11:26:10 am »
0
For this question would this be a sufficient answer
Describe how the fossil record supports the theory of evolution.

The fossil record supports the theory of evolution as it indicates how life has changed over time and shows the evolution of eukaryotic cells from prokaryotic cells. The fossil record provides evidence of the extinction of species

Hey Chocolatepistachio! :D
This is a fantastic start ;D
I have provided an edited response below.

If this question has a stimulus, always refer to it because on some marking criteria it may say, "refers to stimulus", meaning that it should be part of your response. I don't know if this question had a stimulus or how many marks this question is worth, but I have edited your response below to suit a stimulus:

The stimulus above, illustrates fossil records, a group of fossils which have been analysed and arranged chronologically (Source: Biology Dictionary). Fossil records provide extensive evidence regarding the 'Theory of Evolution', the theory that a change in a species over many generations is a result of natural selection of favourable characteristics. These records support the idea and are indicative of how Prokaryotic cells (3.5 Billion Years ago) evolved to become Eukaryotic cells (2 Billion Years ago), a process taking 1.5 billion years. It is the evidence of radiometric dating and comparative anatomy, that evidently fortifies this theory through an analysis of that species over time, thereby illustrating a progression of evolution. Hence, it is the evidence we are given by fossil records, like radiometric dating, that supports the 'Theory of Evolution'.

Remember, in Biology:
🧬 Always provide definitions of keywords
🧬 Address the stimulus (if given one)
🧬 Provide evidence to support your argument
🧬 Be as specific as you can be

I hope this has helped!
Coolmate 8)
« Last Edit: October 30, 2020, 11:32:00 am by Coolmate »
🤯HSC 2020:🤯
🔥Advanced Maths🔥 - 📚Advanced English📚 - ☄️Physics☄️ - ✌Biology✌ - 🙏SOR 1🙏 - 👨‍💻IPT👨‍💻


🎓University 2021 - 2025:
Bachelor of Science (Biology) / Bachelor of Information Technology (Cyber Security)


👊Need Motivation Click Here!💪         🌴Bio Marking and Feedback!

🧬Biology Guide:
🧪Module 5

darkz

  • Forum Obsessive
  • ***
  • Posts: 413
  • Respect: +154
Re: VCE Biology Question Thread
« Reply #13148 on: October 30, 2020, 12:00:20 pm »
+2
For this question would this be a sufficient answer
Describe how the fossil record supports the theory of evolution.

The fossil record supports the theory of evolution as it indicates how life has changed over time and shows the evolution of eukaryotic cells from prokaryotic cells. The fossil record provides evidence of the extinction of species

With this question, it's also important to address transitional fossils. That is, when we're talking about evolution, we're talking about going from Point A to Point B, and transitional fossils therefore show us that step between the two points.
2018: Biology [50 + Prems]
2019: English [46], Latin [45], Chemistry [41], Mathematical Methods [48], Specialist Mathematics [41]
ATAR: 99.95

2020: BMedSci, M.D. @ Monash Uni

VCE Biology Units 1&2 and 3&4 Tutoring for 2021

whys

  • VIC MVP - 2020
  • Forum Leader
  • ****
  • Posts: 722
  • Respect: +916
Re: VCE Biology Question Thread
« Reply #13149 on: October 30, 2020, 02:43:27 pm »
0
A section of a DNA strand has the base sequence AGCGCATAGCAA.
During DNA replication to form the complementary DNA strand, a mutation involving a single base
substitution occurred in the last triplet of this section.
This mutation was then passed on to the mRNA when transcription of the complementary strand occurred.
The base sequence of the mRNA containing the mutation could be
A.    AGCGCAUAGCAA
B.    AGCGCAUAGUAA
C.    UCGCGUAUCGUU
D.    UCGCGUAUCAUU

Why is the answer to this D and not B? I thought the mRNA sequence would be complementary to the complementary strand, so it would have the same base sequence as first given in the question as this would be the coding strand.
psych [50] bio [50]
2021-2025: BMedSci/MD @ Monash

PhoenixxFire

  • VIC MVP - 2018
  • Honorary Moderator
  • ATAR Notes Legend
  • *******
  • Posts: 3695
  • They/them/theirs
  • Respect: +3102
Re: VCE Biology Question Thread
« Reply #13150 on: October 30, 2020, 03:02:23 pm »
0
My guess would be that whoever wrote this question confused themself and got it wrong. Is it a VCAA question? If not I'd just assume they made a mistake and forget about it.
They specify that the transcription is of the complementary strand so you're right that it should be B.
2019: B. Environment and Sustainability/B. Science @ ANU
2020: Just Vibing
2021: B. Paramedicine/B. Nursing @ ACU Canberra

whys

  • VIC MVP - 2020
  • Forum Leader
  • ****
  • Posts: 722
  • Respect: +916
Re: VCE Biology Question Thread
« Reply #13151 on: October 30, 2020, 03:04:04 pm »
0
My guess would be that whoever wrote this question confused themself and got it wrong. Is it a VCAA question? If not I'd just assume they made a mistake and forget about it.
They specify that the transcription is of the complementary strand so you're right that it should be B.
Yep, it's from the 2017 NHT VCAA exam, and the examiners report said it was D.
psych [50] bio [50]
2021-2025: BMedSci/MD @ Monash

PhoenixxFire

  • VIC MVP - 2018
  • Honorary Moderator
  • ATAR Notes Legend
  • *******
  • Posts: 3695
  • They/them/theirs
  • Respect: +3102
Re: VCE Biology Question Thread
« Reply #13152 on: October 30, 2020, 03:14:26 pm »
+6
^The only other thing I can think is that when they said "transcription of the complementary strand" they were referring to the complementary strand being used as the coding strand not the template strand. Bit unfair to ask you to guess which they wanted you to think of it as though.

Edit: I'll go through the past exams tonight or tomorrow and see if theres any consistency as to how they phrase those questions just in case it comes up on your exam because otherwise you'll pretty much just have to take a guess.
« Last Edit: October 30, 2020, 03:17:02 pm by PhoenixxFire »
2019: B. Environment and Sustainability/B. Science @ ANU
2020: Just Vibing
2021: B. Paramedicine/B. Nursing @ ACU Canberra

Varahi

  • Fresh Poster
  • *
  • Posts: 2
  • Respect: 0
Re: VCE Biology Question Thread
« Reply #13153 on: October 30, 2020, 06:36:24 pm »
0
Hi, I'm just wondering where I can find the suggested solutions for the vcaa 2017 sample exam? because vcaa doesn't have them, thanks
:)

Sine

  • Werewolf
  • National Moderator
  • Great Wonder of ATAR Notes
  • *****
  • Posts: 5135
  • Respect: +2103
Re: VCE Biology Question Thread
« Reply #13154 on: October 30, 2020, 07:01:36 pm »
+6
Hi, I'm just wondering where I can find the suggested solutions for the vcaa 2017 sample exam? because vcaa doesn't have them, thanks
Not official answers but made and edited by a few AN users
https://atarnotes.com/forum/index.php?topic=173234.msg977776#msg977776