Lamellar models, Biology

Assignment Help:

LAMELLAR MODELS

  1. According to James Danielly & Hugh Davson (1935) cell membrane consists of 4 layers P-L-L-P.
  2. Molecules of phospholipid has amphipathic nature, i.e. it has polar & non-polar ends.
  3. Polar end is head consists of glycerol, which is attached to protein layer by Hydrogen & Ionic bonds (strongest bond) or Electrostatic forces.
  4. Non-polar end is tails consists of fatty acids, which are attached to each other by Vander wall forces (weakest bond) or Hydrophobic or Lipophilic interactions.
  5. Outer & inner surfaces of membrane consists of globular hydrated a-protein.

171_lamellar model.png


Related Discussions:- Lamellar models

Explain cell cycle, Q. What is the cell cycle? The Cell cycle, or mitot...

Q. What is the cell cycle? The Cell cycle, or mitotic cycle, is the time period that begins when the cell is finishes and created when it is divided by mitosis creating two dau

Skeletons of radiolarians, Skeletons of radiolarians The skeletons of ...

Skeletons of radiolarians The skeletons of radiolarians and foraminiferans form a primary constituent of ocean bottoms where they form 30% or more of the sediment. It is calle

Endocrine glands of an insect, ENDOCRINE GLANDS OF AN INSECT - The endo...

ENDOCRINE GLANDS OF AN INSECT - The endocrine glands of cockroach are as follows. 1.       Intercerebral gland cells. These cells lie in the brain. They secrete brain horm

What are the physical properties of tear film, What are the physical proper...

What are the physical properties of Tear Film? Physical Properties of Tear Film: The tear film is a three-layered structure as given below: 1) Outermost Layer: Lipid Layer

Explain ophthalmic, Ophthalmic Data are limited on the effectiveness of...

Ophthalmic Data are limited on the effectiveness of antimicrobial prophylaxis for ophthalmic surgery, but postoperative endophthalmitis can be devastating. Most ophthalmologist

Define about the probiotics, Define about the Probiotics? Dietary Sourc...

Define about the Probiotics? Dietary Sources and their Mode of Action/Effects We can have specific preparations designed for probiotic use, as well as, foods. Probiotic product

What is organelles, What is Organelles? Organelles :   Eukaryotic cel...

What is Organelles? Organelles :   Eukaryotic cells contain various membrane-bound structures called organelles, in contrast to prokaryotes, which lack a definite internal or

Can the heat capacity of water be taken small or large, Q. Can the heat cap...

Q. Can the heat capacity of water be taken small or large ? What is the biological importance of that characteristic? Ans. From Thermology it is define that the quantit

Embryology, what is the full name of Balfour in Balour''s law of cleavage?

what is the full name of Balfour in Balour''s law of cleavage?

Explain in detail about male reproductive system, Explain in detail about M...

Explain in detail about Male Reproductive System The male reproductive organ consists of the following:  A pair of testes, held in scortum; produces spermatooa and testoster

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