NTA Abhyas NEET2020BotanyCell - The Unit of LifePractice
Some secretory cells synthesize and release glycoproteins. What is the correct order of the sequence of events as they occur in the secretory cell? I. Exocytosis II. Product accumulates in secretory vesicle III. mRNA binds to ribosomes IV. Synthesis of glycoprotein
Options
- AIII, IV, I, II
- BIII, IV, II, I
- CIV, III, I, II
- DIV, III, II, I
Correct answer
B. III, IV, II, I
Step-by-step solution
Protein synthesis follows the typical transcription to translation steps. The mRNA having the code for glycoprotein will be translated by the ribosome possibly in the rough endoplasmic reticulum (RER). Later the constructed protein is processed by golgi bodies and secreted out of the cell via exocytosis in vesicles made out of the golgi bodies. Such secretory cells have a higher amount of RER and GB.