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 is xaxim, Q. What is xaxim? Most pteridophytes have subterraneous ...

Q. What is xaxim? Most pteridophytes have subterraneous stems similar to the substrate called as rhizomes. Xaxim is a kind of pteridophyte with an aerial stem in generally perp

Which are the most important inorganic molecular substances, Q. Which are t...

Q. Which are the most important inorganic molecular substances for living beings? Ans. The most important inorganic substances for living beings are mineral salts, water,

What is the life cycle of a tapeworm, Q. What is the life cycle of a tapewo...

Q. What is the life cycle of a tapeworm? The Pregnant proglottids with taenia eggs are released together with human feces. If ingested by the intermediate hosts, bovineor swine

Why do ribosomes move along mrna during translation, Q. Why do ribosomes mo...

Q. Why do ribosomes move along mRNA during translation? During translation the ribosome always exposes two mRNA codons to be translated by moving along the mRNA, when a peptide

Type of fecundation that occur in arthropods, Q. What are the kinds of fecu...

Q. What are the kinds of fecundation that occur in arthropods? What is the predominant kind? In arthropods there are species having exterior fecundation and other species havin

Explain systemic circulation in human biology, Explain Systemic Circulation...

Explain Systemic Circulation in human biology? In systemic circulation, oxygenated blood is pumped from the left atrium through the bicuspid valve, into the left ventricle, and

Explain about the chemical carcinogens, Explain about the Chemical Carcinog...

Explain about the Chemical Carcinogens? Chemicals have been shown to be carcinogenic. Some are naturally occurring components of plants and microbial organisms. Some are synthe

Proteins, what is he importance of proteins for living beings

what is he importance of proteins for living beings

Aibp-utilization of alternate feed resources, Utilization of Alternate Feed...

Utilization of Alternate Feed Resources Use of alternate feed resources is one of the potential areas for augmenting feed resource base in the country. However, the use of NCF

How establish a pure-breeding population of brown pigs, Would it be possibl...

Would it be possible to establish a pure-breeding population of brown pigs with a few black spots?

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