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BIOLOGY, M1 2022 VCE 4a

Increased protein consumption is a global trend. Chicken eggs are a good source of protein.

Ovalbumin (egg white protein) is formed from chicken cells during egg production.

Describe the role of organelles in the export of ovalbumin from a chicken's cells into an egg.  (3 marks)

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→ The production, transport and exportation of ovalbumin requires energy, which is supplied via mitochondria within the cell.

→ After ovalbumin is made, the rough endoplasmic reticulum transports it to the Golgi, where it is packaged into vesicles.

→ The vesicles then fuse with the plasma membrane of the cell and the ovalbumin can be released from the cell via exocytosis into an egg.

Show Worked Solution

→ The production, transport and exportation of ovalbumin requires energy, which is supplied via mitochondria within the cell.

→ After ovalbumin is made, the rough endoplasmic reticulum transports it to the Golgi, where it is packaged into vesicles.

→ The vesicles then fuse with the plasma membrane of the cell and the ovalbumin can be released from the cell via exocytosis into an egg.

Filed Under: BIO - Ex-syllabus checks required Tagged With: Band 4, smc-4302-20-Organelles

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