What is passive transport, Biology

Assignment Help:

What is Passive Transport?

Passive Transport:  Specialized proteins called permeases also move specific substances across the cell membrane in a process called carrier transport. If these molecules function without requiring chemical energy, the passive transport is called facilitated diffusion. Substances cross the cell membrane in the same direction as they would by diffusion.

Another passive transport mechanism consists of gated channels, proteins that allow certain substances to cross the cell membrane, either permanently or following a chemical or electrical stimulus. An example of passive transport: glucose enters red blood cells about 100 times faster than would be expected from simple diffusion. This process apparently does not require energy.

 


Related Discussions:- What is passive transport

What are the terms used in sterilization, Q. What are the terms used in ste...

Q. What are the terms used in sterilization? Sterilization: It is defined as freeing the object or substance from all life of any kind. It is defined alternatively as the

Tissue organization and specialized organs, Q. Do plants have tissue organi...

Q. Do plants have tissue organization and specialized organs? Plants have specialized organs (like roots, limbs, reproductive organs, leaves) and differentiated tissues (suppor

Surveys - accidents in industries, Surveys - Accidents in Industries T...

Surveys - Accidents in Industries The surveys done in industries have pointed out that leading cause of accidents is the overexertion or workers working beyond their physical

Evolution of metazoa, Evolution of Metazoa The sponges, coming under p...

Evolution of Metazoa The sponges, coming under phylum Porifera are the closest to Protista, and can perhaps be regarded even as a colony of protists rather than being multicel

Why is maternal milk important for the immune protection, Why is maternal m...

Why is maternal milk important for the immune protection of the baby? Besides being nutritionally significant, maternal milk participates in the defense of the baby against inf

Explain about the cellular senescence - geriatric nutrition, Explain about ...

Explain about the Cellular senescence - Geriatric Nutrition? Aging brings about an irreversible state of growth arrest at the cellular level. Though the cells are viable and me

What is sports nutrition, What is Sports Nutrition? Sports nutrition i...

What is Sports Nutrition? Sports nutrition is a discipline which applies principles derived not only from nutritional but also biochemical and physiological scientific knowled

What are the examples of secretory cells, Q. What are the examples of secre...

Q. What are the examples of secretory cells? Endocrine and exocrine pancreatic cells, parathyroid and thyroid endocrine cells, adenohypophysis, adrenal and pineal endocrine cel

What is the pleiotropy, What is the pleiotropy? The Pleiotropy (or plio...

What is the pleiotropy? The Pleiotropy (or pliotropy) is the phenomenon in which a single gene conditions several various phenotypical traits. Few phenotypical traits may be

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd