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

Inhibition model - models of succession, Inhibition Model - Models of Succe...

Inhibition Model - Models of Succession According to this model, succession is very heterogenous because the development at any one site depends on who gets there first. Speci

Define the mechanism of evolution, A few statements about the mechanism of ...

A few statements about the mechanism of evolution are made. Mark the correct statements.   (i)  Evolution happens at the individual level as well as population level. (ii

Implications of pharmacogenomic research, Problem 1: Describe the funct...

Problem 1: Describe the functions of: a. Glutathione transferases b. Sulfotransferases. -Describe the functions of: a. Glutathione transferases Describe the functions of

Explain the formation of the enzyme-substrate complex, What are the main th...

What are the main theoretical models that try to explain the formation of the enzyme-substrate complex? There are two major models that explain the formation of the enzyme-subs

Balloon aortic valvuloplasty for aortic stenosis, Q. Balloon Aortic Valvulo...

Q. Balloon Aortic Valvuloplasty for aortic stenosis? This is the procedure of choice in children and young individuals where the valve is not calcified. In elderly patients wit

Diagnosis and management of cancer lung, Diagnosis Chest X-ray, Sp...

Diagnosis Chest X-ray, Sputum Cytology Test  Fibro Optic Bronchoscopy and Biopsy  In later stage of disease - weight loss, Debility indicating metastasis Staging of

Perception of light - floral induction, Perception of Light - Floral Induct...

Perception of Light - Floral Induction Stimulus Leaves are found to be organs that perceive light 'stimulus', K.C. Hamner and J. Bonner showed in 1938 that even if all the lea

What has caused evolution, What has caused evolution? 1) Different indi...

What has caused evolution? 1) Different individuals have dissimilar characteristics 2) These differences result in altering abilities to reproduce under local circumstances

What is the basic need for bone grafting, What is the basic need for bone g...

What is the basic need for bone grafting The basic need for bone grafting includes situations like: 1. Implant site development- when the quantity of bone is deficient to s

Mode of nutrition , What is the mode of nutrition in fish,human,amoeba,scor...

What is the mode of nutrition in fish,human,amoeba,scorpian & toad ?

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