how does a cell know when to perform pinocytosis?

Biology
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how does a cell know when to perform pinocytosis?

Sep 1st, 2015

Thank you for the opportunity to help you with your question!

Pinocytosis is one of the ways in which a cell feeds, specifically takes in fluids so its also referred to as "cell drinking". A cell  knows when to performs pinocytosis through cell specific triggers  mediated by receptors as transmitted through from changes in adjacent extracellular fluid composition. Depending with location of the cell, some perform pinocytosis more often than others, for instance cells in the microvilli of the intestines perform a lot pinocytosis because they are exposed to a changing extracellular fluid. However pinocytosis is non specific and requires a lot of energy, that is ATP molecules.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 1st, 2015

Hello Blackcatbc. I am typing a more elaborate answer. Incase you got any specific question on this. please feel free to ask

Sep 1st, 2015

Pinocytosis is a way of hydrating the cell. The trigger is brought by biochemical  changes in the cell itself or the adjacent extracellular fluid, such as changes in pH, electrolyte balance or osmolarity. Pinocytosis is therefore used to achieve some physiological balance in the cell or the extracellular fluid. Its not a common cell feeding process since it requires a lot of energy use is not specific to substances it takes in

Sep 1st, 2015

what about phagocytosis? Is that the same concept?

Sep 1st, 2015

No its not the same concept. While pinocytosis is involved in intake of fluids, phagocytosis takes in solid particles. It occurs in specialized cells called phagocytes, which include macrophages, neutrophils, and other white blood cells. However both are forms of endocytosis-process in which a cell takes in substances.


Sep 1st, 2015

ok thanks!

Sep 1st, 2015

You welcome. Hope you got the concept. Will be glad to help you out in the future for any of your science questions, health and medical or psychology. Best wishes

Sep 1st, 2015

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