The direction of flow of protein products synthesized on ribosomes is as under:
Correct answer: A. Ribosomes -› RER -› Transport Vesicles of ER -› Golgi apparatus -› Golgi vesicles -› Plasma membrane
- A. Ribosomes -› RER -› Transport Vesicles of ER -› Golgi apparatus -› Golgi vesicles -› Plasma membrane
- B. Ribosomes -› SER -› Transport vesicles of ER -› Golgi apparatus -› Golgi vesicles -› Plasma membrane
- C. Ribosomes -› RER -› Golgi vesicles-› Golgi apparatus -› Plasma membrane
- D. Ribosomes -› RER -› Golgi apparatus -› Golgi vesicles -› Plasma membrane
Explanation
Raw proteins are synthesized by ribosomes on RER and then dumped into cisternae of RER. From RER these raw proteins are pinched off in transport vesicles of RER. These transportvesicles of RER are fused together at forming face of Golgi apparatus to form golgi bodies. During the movement of these golgi bodies from forming face to maturation face these raw proteins are converted into finished products (conjugated molecules). Then these are packed in golgi vesicles which are pinched off from maturation face. These vesicles move to the cell membrane for exocytosis or secretion as primary lysosomes.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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