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March 30, 2024, 01:58:08 am

Author Topic: HSC Biology Question Thread  (Read 341636 times)  Share 

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Razeen25

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Re: HSC Biology Question Thread
« Reply #1290 on: October 24, 2018, 12:15:04 am »
+2
hELLOO
I NEED URGENT HELP

DIFFERENCE BETWEEN CELL DIFFERENTIATION AND CELL SPECIALISATION

I READ THROUGH SO MANY NOTES AND EACH IS DIFFERENT TO THE PREVIOUS ONE

THANK YOUU

Cell differentiation is the PROCESS in which an unspecialised cell becomes specialised to perform a particular function/role.
Cell specialisation is the RESULT/ROLE of cell differentiation (the cell is specialised following the process of differentiation).

But they're so similar tbh i dont think they'd even ask for a difference (i hope)
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3.14159265359

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Re: HSC Biology Question Thread
« Reply #1291 on: October 24, 2018, 12:42:53 am »
+1

But they're so similar tbh i dont think they'd even ask for a difference (i hope)

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SaskiaN

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Re: HSC Biology Question Thread
« Reply #1292 on: November 03, 2018, 10:46:02 pm »
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Does direct contact include blood transfusion? Say Malaria, if a blood transfusion contained the malaria parasite, that would be direct contact? cause blood is a bodily fluid. Am I right?
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InnererSchweinehund

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Re: HSC Biology Question Thread
« Reply #1293 on: November 05, 2018, 08:07:55 pm »
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Hi,
Could someone please explain the difference between protein synthesis and polypeptide synthesis??
Thanks!!

jasn9776

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Re: HSC Biology Question Thread
« Reply #1294 on: November 08, 2018, 02:52:52 pm »
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Hi,
Could someone please explain the difference between protein synthesis and polypeptide synthesis??
Thanks!!
Proteins are made of one or more polypeptides. So polypeptide synthesis is the process of joining amino acids together via peptide bonds. Then these polypeptides may join or fold to form proteins. For example, Enzymes are globular proteins and can be made of many polypeptides folded together.

So basically, they refer to the same process but I would suggest using the term polypeptide synthesis(and this is also what the syllabus specifies) since not all proteins are made up of only one polypeptide.
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Erutepa

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Re: HSC Biology Question Thread
« Reply #1295 on: November 08, 2018, 03:20:57 pm »
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Does direct contact include blood transfusion? Say Malaria, if a blood transfusion containing the malaria parasite, that would be direct contact? cause blood is a bodily fluid. Am I right?
As far as my quick research goes, direct contact is specifically person-to-person, while indirect contact can include transmission by vectors (like mosquitos). Therefore, blood transfusions would be considered via. indirect contact.
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jamonwindeyer

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Re: HSC Biology Question Thread
« Reply #1296 on: November 11, 2018, 03:26:39 pm »
+1
Hello everyone! I know there have been a couple of questions already, but just putting this here as a marker for the new syllabus which kicks in for 2019 exams and beyond. Everything before this is still useful - Essentially, two topics from the old course (Blueprint of Life and Search for Better Health) have been expanded into Module 5-6 and Modules 7-8 respectively in the new course. So lots of great information still to be gained!

Keen to see this thread be just as much of a collaborative resource for the new course as it was for the old :)

mirakhiralla

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Re: HSC Biology Question Thread
« Reply #1297 on: January 12, 2019, 05:32:41 pm »
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Can someone please attach the new HSC bio syllabus because I cannot find it, thank you.

Karlamineeeee

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Re: HSC Biology Question Thread
« Reply #1298 on: January 13, 2019, 05:02:37 pm »
+4
The first dot point of the syllabus mentions an 'including but not limited to'... what does this refer to? The organism or type of reproduction. And what is an example for an additional?

●   explain the mechanisms of reproduction that ensure the continuity of a species, by analysing sexual and asexual methods of reproduction in a variety of organisms, including but not limited to:
–   animals: advantages of external and internal fertilisation
–   plants: asexual and sexual reproduction
–   fungi: budding, spores
–   bacteria: binary fission (ACSBL075)
–   protists: binary fission, budding
 
thanks

Hi! I hope I'm replying to this correctly (this is my first time using this forum and site). I believe that this dot point refers to the type of reproduction. We definitely have to study the types of reproduction as listed, but there are additional methods of reproduction. For example, with protists there is also the method of multiple fission, and with bacteria, they have other methods of reproduction to ensure genetic variation (these are transformation, transduction and conjugation). Basically, the syllabus says that we will study those listed, but not only those. This is just what I believe, based on what I've learnt at my school (we haven't done any other organisms' method of reproduction!).

Hope this helps!!
« Last Edit: January 13, 2019, 05:10:16 pm by Karlamineeeee »

Karlamineeeee

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Re: HSC Biology Question Thread
« Reply #1299 on: January 13, 2019, 05:09:10 pm »
+1
Can someone please attach the new HSC bio syllabus because I cannot find it, thank you.

I was able to find it here: https://educationstandards.nsw.edu.au/wps/wcm/connect/657d2611-c201-49ce-a18e-ef0f786a5de0/biology-stage-6-syllabus-2017.pdf?MOD=AJPERES&CVID=
I know the syllabus says it's from 2017, but from what I've seen, it's very similar (if not the same) to what I've already been learning in my Prelim course and my one term of HSC from last year.
I found the syllabus PDF from https://educationstandards.nsw.edu.au/wps/portal/nesa/11-12/stage-6-learning-areas/stage-6-science/biology-2017. There's also a Word version of this available. Unfortunately, I can't attach the syllabus because it's a little too large. Please access one of the links and download the PDF/Word version of the syllabus if you want a copy!

Hope this helps!

Eshhkayyy at Biolowgeey

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Re: HSC Biology Question Thread
« Reply #1300 on: January 19, 2019, 06:15:46 pm »
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Hello guy so i got holiday homework and this is one of the questions, do you reckon you can give me a hand with this protien syntheis question it is worth 6 marks. I would greatly appreciate your kindness and willingness to help me like me to learn and become better people. Much love

EB

kauac

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Re: HSC Biology Question Thread
« Reply #1301 on: January 19, 2019, 06:22:40 pm »
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Hello guy so i got holiday homework and this is one of the questions, do you reckon you can give me a hand with this protien syntheis question it is worth 6 marks. I would greatly appreciate your kindness and willingness to help me like me to learn and become better people. Much love

EB

Hi, it appears that you haven't written the question yet. Did you try to attach a photo?  :)
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mirakhiralla

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Re: HSC Biology Question Thread
« Reply #1302 on: January 19, 2019, 07:36:23 pm »
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I was able to find it here: https://educationstandards.nsw.edu.au/wps/wcm/connect/657d2611-c201-49ce-a18e-ef0f786a5de0/biology-stage-6-syllabus-2017.pdf?MOD=AJPERES&CVID=
I know the syllabus says it's from 2017, but from what I've seen, it's very similar (if not the same) to what I've already been learning in my Prelim course and my one term of HSC from last year.
I found the syllabus PDF from https://educationstandards.nsw.edu.au/wps/portal/nesa/11-12/stage-6-learning-areas/stage-6-science/biology-2017. There's also a Word version of this available. Unfortunately, I can't attach the syllabus because it's a little too large. Please access one of the links and download the PDF/Word version of the syllabus if you want a copy!

Hope this helps!


Thank you so much :)

Eshhkayyy at Biolowgeey

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Re: HSC Biology Question Thread
« Reply #1303 on: January 20, 2019, 02:38:59 pm »
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Hi, it appears that you haven't written the question yet. Did you try to attach a photo?  :)

Hey, sorry i totally forgot about actually sending the question, so dumb of me lol. All the stress is finally catching up to me :)

"For the amino acid sequence that you have been given (Met-Cys-Lys-Asp-STOP) predict what could happen if a single point mutation occurred within the corresponding DNA sequence. Name the type of mutation that could occur and explain how it would affect the mRNA sequence, tRNA, corresponding amino acid and polypeptide chain (6 marks)."

Thank you very much for assisting me through this stressful times. I don't know what i will do without you guys. :)

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annabeljxde

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Re: HSC Biology Question Thread
« Reply #1304 on: February 07, 2019, 11:38:25 pm »
+1
Hello everyone :)

My biology teacher has been getting us to learn a lot about the history of Mendel's experiments with his garden peas and the steps he took to obtain his results (F1- monohybrid cross produced offspring that took on the characteristics/phenotype of only one parent, F2 produced offspring in ratio 3:1 etc.) In terms of the new syllabus, how significant do you think the context of Mendel's experiments are to the syllabus content because I feel as though I am wasting time learning content that potentially may not be tested in the HSC exam for the new curriculum.

Do you guys have any opinions?

Thank you and have a good night :))  ;D
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