Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • The plasma membrane consists mainly of :Option: 1 Proteins embedded in a carbohydrate bilayerOption: 2<

The plasma membrane consists mainly of :

Option: 1

Proteins embedded in a carbohydrate bilayer


Option: 2

Phospholipids embedded in a protein bilayer


Option: 3

Proteins embedded in a phospholipid bilayer


Option: 4

Proteins embedded in a polymer of glucose molecules


Answers (1)

best_answer

  • The plasma membrane, most often spelt as cell membrane (plasmalemma) is the outer boundary or the limiting layer of the cell.

  • The “fluid mosaic model” postulated by Singer and Nicolson (1972) is the most widely accepted explanation in support of the structure of the cell membrane.

  • As per this model, the cell membrane is composed of a continuous bilayer of phospholipid molecules in a fluid phase in which the globular proteins are embedded.

  • The plasma membrane is thus semi-fluid or quasi-fluid in which lipid and integral proteins form a mosaic-like appearance.

  • Here, proteins are compared to icebergs floating in a sea of phospholipid bilayers.

Hence, the most appropriate correct option is (3).

Posted by

vinayak

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

AFMC hikes MBBS seat leaving bond penalty, mandates 7 years of commission service
anam-khan

‘Patience and not backing down’: Kabir Paharia’s SC fight eases MBBS admissions for disabled candidates
anam-khan

SC wants to know if FIRs filed over suicides of IIT student, NEET aspirant

Latest Question