HSC Biology Marathon 2015 (6 Viewers)

[Mr_Kap]

Can someone explain what protein synthesis is for me please in a simple way. I'll be forever greatful as we never did it in class.

 

[obliviousninja]

I used jellybeans for that

 

[Mr_Kap]

I used jellybeans for that

U serious? lol. You reckon I should learn protein synthesis? Or should i take the risk and leave it out?

 

[Queenroot]

U serious? lol. You reckon I should learn protein synthesis? Or should i take the risk and leave it out?

Don't leave it out. Try watching a video on youtube.

 

[BlueGas]

His example was still specific

It was semi-specific as it wasn't consistent all the way through

 

[Flop21]

U serious? lol. You reckon I should learn protein synthesis? Or should i take the risk and leave it out?

One of the most important things!!! I see it all the time in past questions. It's actually pretty interesting.


And yes they require a "simple model" to show protein synthesis lol (jelly beans, lollies, marshmallows). But get down what actually happens via youtube animation first.

 

[BlueGas]

One of the most important things!!! I see it all the time in past questions. It's actually pretty interesting.


And yes they require a "simple model" to show protein synthesis lol (jelly beans, lollies, marshmallows). But get down what actually happens via youtube animation first.

Do you mind mentioning what year/question number you saw a question asking about protein synthesis?

 

[Flop21]

Do you mind mentioning what year/question number you saw a question asking about protein synthesis?

Um... I can't actually find any at the moment lol. Maybe I exaggerated by saying "see it all the time". I know for sure there was one question on it in my trials. And I remember one question when doing practice HSC questions. Sorry, if I see it again I'll post it here.

 

[BlueGas]

Um... I can't actually find any at the moment lol. Maybe I exaggerated by saying "see it all the time". I know for sure there was one question on it in my trials. And I remember one question when doing practice HSC questions. Sorry, if I see it again I'll post it here.

Do you remember what the question in your trials was asking?

 

[Chris_S]

To be honest I have done a fair few neap, independent papers and have not seen one single protein synthesis question. However, I still wouldn't risk it as it will be our luck it will be in the paper!

 

[Queenroot]

Don't take any chances, especially if yall gonna study something bio related in uni.

 

[Flop21]

Do you remember what the question in your trials was asking?

"Describe the difference between protein synthesis and DNA replication."

and

"Describe a model of protein synthesis showing the correct processes, and outline one limitation of the model".


Those were the 2 in my trials. Please note I cannot find my actual test, and going off the marking criteria to create the questions above ^.

 

[BlueGas]

"Describe the difference between protein synthesis and DNA replication."

and

"Describe a model of protein synthesis showing the correct processes, and outline one limitation of the model".


Those were the 2 in my trials. Please note I cannot find my actual test, and going off the marking criteria to create the questions above ^.

Did you know how to answer them? lol.

 

[el_manu]

"Describe the difference between protein synthesis and DNA replication."

and

"Describe a model of protein synthesis showing the correct processes, and outline one limitation of the model".


Those were the 2 in my trials.Please note I cannot find my actual test, and going off the marking criteria to create the questions above ^.

 

[BlueGas]

Pic doesn't work, I would love to know the answer to those two questions though.

 

[Flop21]

Pic doesn't work, I would love to know the answer to those two questions though.

sorry didn't see you asked, give me a few minutes I'll find the answer and tell you

 

[Flop21]

Pic doesn't work, I would love to know the answer to those two questions though.

- Correctly describes a model of protein synthesis including transcription and translation and one limitation of the model (4 marks)

Sample Answer:

Using pipe cleaners students simulate the process to describe a process we cannot see. [I'm actually not sure this is a good sample answer lol]

One limitation of this model is that it does not include the enzymes involved or relative size of the molecules.



So pretty much just describe the process using symbols representing the different cells and stuff. And the limitations would be what was described above^


- Describes one difference between the protein synthesis and DNA replication (2 marks)

Protein synthesis:

1. process involves nucleus, ribosome, cytoplasm
2. process active throughout much of cell cycle
3. end product is a polypeptide chain
4. involves RNA

DNA replication:
1. process takes place within nucleus
2. process active in very small segment of cell cycle-prior to cell division
3. end product is a replica of the DNA of the cell
4. does not involve RNA

 

[BlueGas]

- Correctly describes a model of protein synthesis including transcription and translation and one limitation of the model (4 marks)

Sample Answer:

Using pipe cleaners students simulate the process to describe a process we cannot see. [I'm actually not sure this is a good sample answer lol]

One limitation of this model is that it does not include the enzymes involved or relative size of the molecules.



So pretty much just describe the process using symbols representing the different cells and stuff. And the limitations would be what was described above^


- Describes one difference between the protein synthesis and DNA replication (2 marks)

Protein synthesis:

1. process involves nucleus, ribosome, cytoplasm
2. process active throughout much of cell cycle
3. end product is a polypeptide chain
4. involves RNA

DNA replication:
1. process takes place within nucleus
2. process active in very small segment of cell cycle-prior to cell division
3. end product is a replica of the DNA of the cell
4. does not involve RNA

So protein synthesis is basically DNA translation?

 

[BlueGas]

What's a simple definition for protein synthesis?

 

[Flop21]

What's a simple definition for protein synthesis?

Protein synthesis is another word for polypeptide synthesis. It's the process where a chain of amino acids is formed (polypeptide chain).

DNA replication is just DNA replication, its results in 2 identical DNA strands.


In the syllabus is actually says polypeptide synthesis is "the process by which DNA controls the production of polypeptides".