Fluid mosaic model of plasma membrane was given by
1. Robertson
2. Robert Hooke
3. Singer and Nicholson
4. Gorter and Grendel
The fluid nature of the membrane is also important from the point of view of functions like
1. cell growth
2. secretion
3. cell division
4. All of the above
The ability to move within the membrane is measured as its
(1)liquidity
(2)fluidity
(3)viscosity
(4)stability
In human beings, the membrane of erythrocyte has
(1) Approximately 40% proteins and 52% lipids
(2) Cephalin on the outer side and lecithin on the inner side
(3) Approximately 52% proteins and 40% lipids
(4) Lecithin on the outer side and cephalin on the inner side
Integral or Peripheral proteins classification is based on
1. | protein size | 2. | ease of extraction |
3. | ease of function | 4. | ease of study |
Read the following statements carefully
A. Lipid component of the plasma membrane mainly consists of phosphoglycerides.
B. Polar molecules can pass through the lipid bilayer of plasma membrane, therefore they do not require carrier proteins to facilitate their transport.
C. Secondary wall is capable of growth and it is formed on the outer side of the cell
D. Quasi fluid nature of lipid enables lateral movement of proteins within the overall lipid bilayer of plasma membrane
E. Middle lamella glues the different neighbouring cells together
How many statements are incorrect?
1. Three
2. Five
3. Four
4. Two
Who proposed the fluid mosaic model of plasma membrane?
1. Camillo Golgi
2. Schleiden and Schwann
3. Singer and Nicolson
4. Robert Brown