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

Airway management - respiratory failure, Airway Management To improve...

Airway Management To improved ventilation, suctioning, IPPB, Ultrasonic mist therapy and postural drainage with clapping and vibrating are all employed to halt the progress o

What is the crystallization of a virus, Q. What is the crystallization of a...

Q. What is the crystallization of a virus? What is the significance of this process? Crystallization is the procedure of transformation of viral components into organized solid

Use pcr to sequence the particular gene, You wish to use PCR to sequence a ...

You wish to use PCR to sequence a particular gene that you have isolated. The sequencing protocol suggests that you use 3.2pmole (pico moles) of your primer in a 2 micro liter volu

The cell body of the toe motor neuron, Which of the following is true for a...

Which of the following is true for a toe motor neuron that excites a toe muscle that moves the big toe in the left foot? A. All of the axon terminals of the toe motor neuron ar

How to calculate hydrogen ion concentration, Q. How to calculate Hydrogen I...

Q. How to calculate Hydrogen Ion Concentration? Ans. The hydrogen ion concentration has a significant role to play in growth of bacteria as every microorganism has a minim

Sub xyphoid pericardial window -types of surgery, Sub Xyphoid Pericardial W...

Sub Xyphoid Pericardial Window :  It could be done under local or general anaesthesia. A small vertical midline incision is made over the xyphoid process on to the linea alba

Define sample titration for estimation of reducing sugar, Define Sample Tit...

Define Sample Titration for Fehling Soxhlet Method Dilute the given sample glucose solution in 100 ml volumetric flask to the mark with distilled water. Pipette 5 ml of Fehling

Lower respiratory tract, Lower Respiratory Tract: Trachea:   ...

Lower Respiratory Tract: Trachea:   Trachea or windpipe  is 12 cm long, 2.5 cm in diameter lying in front of the esophagus and  ends opposite the fourth dorsal

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