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Examine the following diagram of a pancreatic cell - VCE - SSCE Biology - Question 7 - 2012 - Paper 1
Question 7
Examine the following diagram of a pancreatic cell. The order in which the parts of the cell play a role in the production and secretion of proteins is: A. M, E, J... show full transcript
Worked Solution & Example Answer:Examine the following diagram of a pancreatic cell - VCE - SSCE Biology - Question 7 - 2012 - Paper 1
Step 1
M, E, J, T
Answer
In this step, we need to understand the functions of the organelles labeled M, E, J, and T in the context of protein production and secretion.
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M (Mitochondria): This organelle provides the energy required for various cellular processes, including protein synthesis.
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E (Endoplasmic Reticulum): The Rough Endoplasmic Reticulum (RER) is primarily responsible for the synthesis of proteins. Ribosomes on its surface facilitate the translation of mRNA into amino acid chains.
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J (Golgi Apparatus): This organelle modifies, sorts, and packages proteins for secretion or delivery to other organelles.
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T (Secretory Vesicles): These vesicles transport the proteins from the Golgi apparatus to the cell membrane for secretion.
Thus, the correct order from the list regarding their roles in protein synthesis and secretion is: M → E → J → T.