NCERT Important Questions Class 9 Science biology Chapter 5
Important NCERT Extra Questions
Chapter 5 The Fundamental Unit of Life
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
What is meant by selectively permeable membrane?
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Selectively permeable membrane is the one which allows entry of certain substances, exit of some substances but prevents the passage of other substances, through it.