Biologyforsnab
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I can’t seem to answer this question someone help me please


Extracellular enzymes are produced by specialised cells. Explain how groups of cells can produce the same enzyme.

It’s 3 marks
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kkboyk
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(Original post by Biologyforsnab)
I can’t seem to answer this question someone help me please


Extracellular enzymes are produced by specialised cells. Explain how groups of cells can produce the same enzyme.

It’s 3 marks
Enzymes are protein, and we know that protein are created by unique sequence of amino acids and folding to create the unique shape. In order for different cell to make the same enzyme that will perform the same function, then they need to produce the exact same sequence of amino acids and folding.
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Biologyforsnab
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Thank youu so much!!!
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alendi
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I think you'd need to mention that cells from the same organism contain the same DNA and therefore will all have the genes for the same enzymes. Protein synthesis is the process by which the enzymes are made (probably need to expand a little on this for 3 marks).
(Original post by Biologyforsnab)
I can’t seem to answer this question someone help me please


Extracellular enzymes are produced by specialised cells. Explain how groups of cells can produce the same enzyme.

It’s 3 marks
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Biologyforsnab
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(Original post by alendi)
I think you'd need to mention that cells from the same organism contain the same DNA and therefore will all have the genes for the same enzymes. Protein synthesis is the process by which the enzymes are made (probably need to expand a little on this for 3 marks).
Thank you very much !!!
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macpatgh-Sheldon
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Hi,
This is a Q phrased to throw you off track. As mentioned in the two replies above, the Q is intended to test your knowledge of transcription and translation AND of "specialized cells" i.e. the facts that:
a) "extracellular enzymes" [ignore the word "extracellular" in this context] are proteins.
b) a protein are made as a specific sequence of amino acids determined by the base sequence in the coding mRNA.
c) this mRNA has the sequence of triplets complementary to that in the parent DNA.
d) "specialized cells" will all have identical DNA/chromosomes
AND
e) "specialized cells" (being identical) will have the same transcription factors.
f) so the gene expression will be identical.

M (specialist biology tutor)
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Biologyforsnab
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(Original post by macpatgh-Sheldon)
Hi,
This is a Q phrased to throw you off track. As mentioned in the two replies above, the Q is intended to test your knowledge of transcription and translation AND of "specialized cells" i.e. the facts that:
a) "extracellular enzymes" [ignore the word "extracellular" in this context] are proteins.
b) a protein are made as a specific sequence of amino acids determined by the base sequence in the coding mRNA.
c) this mRNA has the sequence of triplets complementary to that in the parent DNA.
d) "specialized cells" will all have identical DNA/chromosomes
AND
e) "specialized cells" (being identical) will have the same transcription factors.
f) so the gene expression will be identical.

M (specialist biology tutor)
Ah thank you so much that makes much more sense now!
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E05
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Is it…

e.g. Digestive enzymes (proteins) .

Transcribed by the same group of specialised cells from organs.

These cells all have the same gene activated to transcribe for the same digestive enzymes.

They all respond to the same transcription factor as they have the same gene.

So the group of cells can produce the same enzyme.
(Original post by Biologyforsnab)
I can’t seem to answer this question someone help me please


Extracellular enzymes are produced by specialised cells. Explain how groups of cells can produce the same enzyme.

It’s 3 marks
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Biologyforsnab
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(Original post by E05)
Is it…

e.g. Digestive enzymes (proteins) .

Transcribed by the same group of specialised cells from organs.

These cells all have the same gene activated to transcribe for the same digestive enzymes.

They all respond to the same transcription factor as they have the same gene.

So the group of cells can produce the same enzyme.
Thank you! Unfortunately I don’t have the mark scheme so don’t know what the exact marking points are but I assume it’s along these lines
Thank u very much
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