Biology
Class 9
Why is the plasma membrane called selectively permeable?
What does it allow and what does it block?
1 answers
50 votes
1 Answers
uniboardhub
2 weeks ago
The plasma membrane allows some substances like oxygen and water to pass through while blocking others. This selectivity helps maintain a stable internal environment essential for cell survival.
Join the Discussion
Share your knowledge and help others learn by answering this question.
Help students understand complex topics
Build your reputation as an expert
Contribute to the learning community
Study Materials
Access comprehensive notes, guides, and resources to excel in your studies
Explore Materials
Free Resources
PDF Downloads