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কোষপ্রাচীর কি?

Md. Saifur Rahman

কোষপ্রাচীর হলো উদ্ভিদ কোষের কোষ ঝিল্লির বাইরে সেলুলোজ নামক জড় পদার্থ দিয়ে তৈরি পুরু প্রাচীর।

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