Question

The following statements summarizes the results of an experiment related to exocytosis or endocytosis. In this case, explain the relevance of the experiment and its result to our understanding of these processes. Addition of the drug colchicine to cultured fibroblast cells inhibits movement of transport vesicles. 1. Colchicine is a drug that prevents intermediate filament assembly, thereby disrupting intermediate filaments-based functions 2. Colchicine is a drug that prevents endocytosis, thereby disrupting phagocytic functions. 3. Colchicine is a drug that prevents microfilament assembly, thereby disrupting microfilament-based functions 4. Colchicine is a drug that prevents microtubule assembly, thereby disrupting microtubule-based functions.

Answer 1

Answer: 4. Colchicine is a drug that prevents microtubule assembly, thereby disrupting microtubule-based functions.

Step-by-step explanation:

Endocytosis can be defined as trapping of a substance from outside of the cell. Exocytosis can be defined as the process of fusion of the vesicles with the plasma membrane and excreting their contents outside the cell.

Colchicine is a drug that blocks the polymerization of microtubules in the cytoskeleton. This further prevents the transportation of vesicles out of the cell and in the cell. Thus this will prevent the exocytosis and endocytosis of the transport vesicles and will affect cellular metabolism.