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Plasma Membrane/Cell Membrane

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Chemical composition of plasma Membrane is best described as..

a)

Plasma Membrane is bilayers of phospholipids with associated Protein and carbohydrates.

b)

Plasma membrane is composed of equal number of phospholipids,proteins and carbohydrates.

c)

Plasma membrane is bilayers of proteins with associated lipid and carbohydrates.

d)

Plasma membrane is composed of two layers, one layer of phospholipids and another layer of protein.

2.

Glycolipids in P.M. are usually located at.... (P.M.= plasma membrane)

a)

Inner leaflet of P.M.

b)

Outer leaflet of P.M.

c)

Evenly distributed in both inner and outer leaflet of P.M.

d)

None of the above

3.

P.M. is ...

a)

Non-selective barrier

b)

Impermeable

c)

Made of cellulose

d)

Selectively barrier

4.

Lipid bilayer model of P.M. was proposed by...

a)

Singer & Nicolson

b)

Davson Daniel & Robertson

c)

Grendel Gorter

d)

De Duve

5.

Sandwich model of P.M. was given by...

a)

Danielle & Davson

b)

Singer & Nicolson

c)

Grendel & Gorter

d)

De Duve

6.

Fluid Mosaic Model of P.M. was proposed by...

a)

Danielle & Davson

b)

Singer & Nicolson

c)

De Duve

d)

Gorter & Grendel

7.

The term plasma membrane was given by....

a)

C. Nageli

b)

De Duve

c)

Robert Hook

d)

Watson

8.

The membrane protein that extend through both sides of lipid bilayer are...

a)

Intrinsic Proteins

b)

Extrinsic proteins

c)

Peripheral proteins

d)

All of above

9.

Unit membrane model of P.M. was given by...

a)

Robertson

b)

De Duve

c)

Watson

d)

Singer & Nicolson

10.

Model of P.M. proposed by Singer & Nicolson differs from Robertson's model in.....

a)

Amount of protein

b)

Number of lipid layers

c)

Arrangement of proteins

d)

Arrangement of lipid layers

11.

Plasma Membrane is also known as.....

a)

Cell membrane

b)

Plasmalema

c)

Both of above

d)

None of above

12.

Plasma membrane have ...... heads

a)

Polar heads

b)

Hydrophilic

c)

Both of above

d)

Non-polar

13.

Plasma membrane have.... Tail.

a)

Hydrophobic

b)

Non-polar

c)

Both of above

d)

Polar and hydrophilic

14.

Polar groups in plasma membrane situated to the.....

a)

Outer region of both lipid layers

b)

Inner region of both lipid layers

c)

Both outer and inner region of lipid layers

d)

None of above

15.

Non-polar groups of plasma membrane organized in the....

a)

Middle region of two lipid layers

b)

Inner region of lipid layers

c)

Outer region of lipid layers

d)

None of above

16.

Hydrophilic heads of plasma membrane is situated at....

a)

Outer side

b)

Inner side

c)

Both sides

d)

Neither

17.

Non-polar hydrophobic structure of two lipid layers facing each other is known as.......

a)

Hydrophobic tails

b)

Hydrophobic heads

c)

Hydrophilic heads

d)

Hydrophilic tails

18.

Micellar model of plasma membrane was given by...

a)

Fernandez

b)

De Duve

c)

Singer & Nicolson

d)

Robertson

19.

Most accepted model of plasma membrane is....

a)

Fluid Mosaic Model

b)

Unit membrane model

c)

Sandwich model

d)

Lipid bilayer model

20.

Function of plasma membrane is....

a)

Protection of cell from surroundings.

b)

Regulates entry and exit of molecules into and out of the cell.

c)

Receive chemical messenger from other cell

d)

All of the above