Home
Class 9
BIOLOGY
Assertion : A cell membrane shows fluid ...

Assertion : A cell membrane shows fluid behaviour.
Reason : A membrane is a mosaic or composite of diverse lipids and proteins.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

A cell membrane shows fluid behaviour. It was proved by fluid-mosaic model of a biomembrane by Singer and Nicolson in 1972. According to this model, the membrane does not have a uniform deposition of lipids and proteins but is a mosaic of the two. Further, the membrane is not solid but is quasifluid.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CELL-THE FUNDAMENTAL UNIT OF LIFE

    MTG IIT JEE FOUNDATION|Exercise EXERCISE ( Subjective Questions ) (Very Short Answer Type )|15 Videos

  • CELL-THE FUNDAMENTAL UNIT OF LIFE

    MTG IIT JEE FOUNDATION|Exercise EXERCISE ( Subjective Questions ) (Short Answer Type )|16 Videos

  • CELL-THE FUNDAMENTAL UNIT OF LIFE

    MTG IIT JEE FOUNDATION|Exercise EXERCISE (Multiple Choice Questions ) (LEVEL - 2 )|20 Videos

  • DIVERSITY IN LIVING ORGANISMS

    MTG IIT JEE FOUNDATION|Exercise OLYMPIAD/HOTS CORNER|12 Videos

Similar Questions

Explore conceptually related problems

The cell membrane is composed to lipids that are arranged in

Integral cell membrane proteins

Knowledge Check

  • Cell membrane is composed of lipid.

    A
    Wax
    B
    Triglyceride
    C
    Terpen
    D
    Phospholipids

  • In fluid mosaic model of plasma membrane

    A
    upper layer is non -polar and hydrophillic
    B
    upper layer is polar and hydrophobic
    C
    phosholipids form a bimolecular layer in middle part
    D
    proteins form the middle layer

  • In fluid mosaic model of plasma membrane ,

    A
    upper layer is non-polar and hydrophilic
    B
    upper layer is polar and hydrophobic
    C
    phospholipids form a bimolecular layer in middle part
    D
    proteins form a middle layer

    • Similar Questions

    Explore conceptually related problems

    The lipid which is found in cell membrane is

    According to fluid mosaic model, plasma membrane is composed of

    The lipid which is found in cell membranes is

    In a cell membrane, peripheral proteins

    The fluid mosaic model of the cell membrane was first proposed by

    Home
    Profile