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Anurag Sachan , asked a question
Subject: Science , asked on 28/4/13

 why is the the plasma membrane called a selectively permeable membrane?

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Shreya Singh , From Kendriya Vidyalaya , added an answer
Answered on 30/4/13

This is because it allows the passage of only selected material into the cell

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Kshitij , From Kendriya Vidyalaya , added an answer
Answered on 22/9/10

It 's simply because it does not allow each and everything to pass through it, so in other words it "chooses" what can enter a cell.

For e.g There are some people who allow others to enter their life (by becoming their friend) as they see profit in them. Plasma membrane is somewhat same.

Sorry if my explanation or answer is not upto the mark :P

Soumil Rana , From Delhi Public School , added an answer
Answered on 24/9/10

 It is so because it allows or permits various material from going inside or outside the cell.....

Since it selects, what must enter or what must not, thats why it is selectively permeable membrane

Neil Lewis , From Carmel School , added an answer
Answered on 30/9/10

Because it doesnt let any material enter the membrane .......therefore it selects what can enter and what cant enter

naheelp... , added an answer
Answered on 9/10/10

 its because it allows the entry of some materials and prevents the others from entering in the cell.therefore it is called selectively permeable membrane as it allows only selected materials to enter inside the cells!

Ubair Shahid , From Radhwa International School , added an answer
Answered on 5/9/12

Awesome Answers Guyz Tank yoooouh Every One :)

Rishabh Tripathi , From Kendriya Vidyalaya , added an answer
Answered on 29/4/13

Because it allows only some selected material to pass through it.