Exocytosis and Endocytosis
Q1. Define Endocytosis?
Answer:
Endocytosis refers to the transportation of macromolecules, polar substances and large particles substances into the cell from the outer environment and they cannot enter the cell through non-polar membrane.
Q2. Define Exocytosis?
Answer:
Exocytosis refers to the process in which cell transports unwanted materials from the cell. They involves in the process of cell formation. They also transport the protein and polysaccharides into the cell. Exocytosis is used by plants to release nectar to attract pollinators.
Q3. State the Vesicle in the Exocytosis and Endocytosis.
Answer:
In Exocytosis at the end the vesicle are connected with the cell membrane whereas in Endocytosis at the end the vesicle fuses with the membrane bound organelles.
Q4. Write about some similarities between Exocytosis and Endocytosis.
Answer:
Some similarities between Exocytosis and Endocytosis are:
- They both facilitate the transportation of macromolecules which are unable to pass through the cell membrane.
- They both are forms of active transport.
Q5. Write about the occurrence of Exocytosis and Endocytosis.
Answer:
Exocytosis occurs due to the regulated secretory pathways whereas Endocytosis occurs due to pinocytosis and phagocytosis.
Difference Between Exocytosis And Endocytosis
Cell consists of four types of transportation mechanism – Diffusion, active transport, osmosis and bulk transport. The two types of bulk transportation mechanism are known as Exocytosis and Endocytosis. They transport big particles through the plasma membrane from the cell. Exocytosis is the process in which cell transports unwanted materials from the cell while Endocytosis is the transportation of large particles which cannot enter the cell through the non-polar membrane. Endocytosis involves in taking nutrients into the cell whereas exocytosis involves in removing waste from the cell.
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