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

Can you explain pus, Q. What is pus? Pus is a residual of the inflammat...

Q. What is pus? Pus is a residual of the inflammatory reaction and it contains a mixture of fragments of dead infectious agents (generally bacteria), leukocytes and tissues.

Define repletion studies for studying nutrient requirement, Explain the Dep...

Explain the Depletion and Repletion Studies for studying nutrient requirement? This is an experimental procedure in which volunteer subjects are kept on a diet devoid of a part

Differ from our current use of retroviruses, In what way may we be able to ...

In what way may we be able to take advantage of retrotransposons in human gene therapy? How would this differ from our current use of retroviruses?

Cells, what are golgi apparatus

what are golgi apparatus

Physical state of protoplasm, PHYSICAL STATE OF PROTOPLASM Several theo...

PHYSICAL STATE OF PROTOPLASM Several theories have been given about its physical structure - (i )  Granular Theory (Proposed by Altman, Hanstein, 1886) - Granules embed

What is the role of pancreatic lipase, During digestion, the role of pancre...

During digestion, the role of pancreatic lipase is to: -digest cholesterol into dimethlyalpyrophosphase -inhibits interactions between lipids and bile salts -hydrolize TG

What is class asteroidea, What is Class Asteroidea ? Sea stars are prob...

What is Class Asteroidea ? Sea stars are probably one of the most recognizable of all Echinoderms. Often beautifully colored and symmetrical, they are predators that feed vorac

Carbomedics valve-types of valves, Carbomedics Valve :  Almost simila...

Carbomedics Valve :  Almost similar to StJude Medical valve, his is a low profile bileaflet valve made of pyrolitic carbon. On echo cardiography four small jets of regurg

Explain the microscope colony counts and agar droplets, Explain the Microsc...

Explain the Microscope Colony Counts and Agar Droplets? Microscope Colony Counts - The method involves counting of micro-colonies that develop on agar layered over a microsco

Define the rehabilitation phase of spinal trauma disease, Define the Rehabi...

Define the Rehabilitation Phase of spinal trauma disease? Once the patient s condition stabilizes, individualized diets need to be recommended, based on the energy and nutrient

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