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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
Identify the components involved in protein production and secretion
Answer
The diagram includes four distinct regions of the pancreatic cell labeled M, E, J, and T. Each of these plays a role in the synthesis and secretion of proteins.
- M (Mitochondria): Provides the energy required for metabolic processes.
- E (Endoplasmic Reticulum): Synthesizes proteins and is involved in their transport.
- J (Golgi Apparatus): Modifies, sorts, and packages proteins for secretion.
- T (Transport Vesicles): Transports proteins to the cell membrane for secretion.
Step 2
Determine the correct order of components in protein production and secretion
Answer
Based on the roles identified:
- E (Endoplasmic Reticulum) comes first as it synthesizes the proteins.
- Next, J (Golgi Apparatus) processes and packages them.
- Then, T (Transport Vesicles) is involved in carrying proteins to the cell membrane.
- Finally, M (Mitochondria) supports these processes by providing energy, but it does not directly participate in the secretion pathway.
Therefore, the correct order is C. J, T, E, M.