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Kusdiantoro MOHAMAD | <!--:in--> Inti (Nukleus)<!--:--><!--:en-->Nucleus<!--:--> Copyright Kusdiantoro Mohamad [email protected] http://kusdiantoro.staff.ipb.ac.id/2013/07/01/nucleus/ Inti (Nukleus)Nucleus Karakteristik: - Merupakan organel terbesar, berbentuk bulat atau oval yang terletak di tengah sel. - Dibungkus oleh membran ganda inti. Membran inti memiliki pori-pori yang mengatur keluar masuk ‘pembawa pesan’ dari atau ke inti atau sitoplasma. - Mengandung untaian ganda DNA yang terkemas dalam bentuk benang-benang kromatin. Pada saat pembelahan sel, kromatin akan menebal (kondensasi) membentuk kromosom. Fungsi: - Menyimpan dan menyampaikan informasi genetik dalam bentuk untaian ganda DNA. Informasi genetik dari gen tertentu yang aktif akan ditranskripsi ke dalam bentuk RNA, lalu dibawa ke luar inti masuk ke dalam sitoplasma dimana selanjutnya RNA ditranslasi untuk merangkai asam amino menjadi protein yang spesifik sesuai dengan gen (urutan tertentu dari susunan DNA) yang aktif. - Mengontrol fungsi-fungsi sel melalui informasi genetik (DNA) yang dikandungnya dengan cara menghasilkan protein spesifik (misal enzim, growth factor dll) yang selanjutnya akan berfungsi sebagai modulator, supressor, inductor, dll. << Kembali ke Membran Plasma >> Lanjut ke Anak Inti (Nukleolus) >> Lanjut ke Ribosom >> Lanjut ke Retikulum Endoplasmik >> Lanjut ke Aparatus Golgi page 1 / 4 Kusdiantoro MOHAMAD | <!--:in--> Inti (Nukleus)<!--:--><!--:en-->Nucleus<!--:--> Copyright Kusdiantoro Mohamad [email protected] http://kusdiantoro.staff.ipb.ac.id/2013/07/01/nucleus/ >> Lanjut ke Mitokondria >> Lanjut ke Lisosom >> Lanjut ke Peroksisom >> Lanjut ke Sitoskeleton >> Lanjut ke Sentriol >> Lanjut ke Silia << Kembali ke Struktur Dasar Sel Hewan << Kembali ke PENDAHULUAN << Kembali ke DAFTAR ISICharacteristics: - It is the largest organelle, round or oval shape, located in the center of the cell. - Surrounded by a double membrane nucleus. Nuclear membrane has pores that regulate the flow of 'chemical messengers' from or to the nucleus or cytoplasm. - Contains a double strand of DNA is packaged in the form of chromatin threads. At the time of cell division, the chromatin will thicken (condensation) to form chromosomes. Functions: - Store and convey genetic information in the form of double strand DNA. The genetic information of a particular gene that is active will be transcribed into RNA, and then RNA is taken out of the nucleus into the cytoplasm where the subsequent page 2 / 4 Kusdiantoro MOHAMAD | <!--:in--> Inti (Nukleus)<!--:--><!--:en-->Nucleus<!--:--> Copyright Kusdiantoro Mohamad [email protected] http://kusdiantoro.staff.ipb.ac.id/2013/07/01/nucleus/ of RNA is translated to assemble amino acids into the specific proteins corresponding to the genes (specific sequences of DNA structure) that are activated. - Controls the cell functions through the genetic information (DNA) by producing the specific proteins (eg. enzymes, growth factors, etc.) which in turn will serve as a modulator, suppressors, inductor, etc.. << Back to Plasma Membrane >> Continued to Nucleolus >> Continued to Ribosomes >> Continued to Endoplasmic Reticulum >> Continued to Golgi Apparatus >> Continued to Mitochondria >> Continued to Lysosome >> Continued to Peroxisome >> Continued to Cytoskeleton >> Continued to Centriole page 3 / 4 Kusdiantoro MOHAMAD | <!--:in--> Inti (Nukleus)<!--:--><!--:en-->Nucleus<!--:--> Copyright Kusdiantoro Mohamad [email protected] http://kusdiantoro.staff.ipb.ac.id/2013/07/01/nucleus/ >> Continued to Cilia << Back to Basic Structure of Animal Cells << Back to GENERAL INTRODUCTION << Back to CONTENTS page 4 / 4