Submitted by: Submitted by cpgehrke
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Words: 796
Pages: 4
Category: Science and Technology
Date Submitted: 08/19/2014 04:00 PM
1)
• Eukaryotes contain a membrane bound nucleus, prokaryotes do not.
• DNA is organized in tightly bound linear chromosomes in eukaryotes. In prokaryotes, DNA is circular.
• Transcription and translation occur simultaneously in prokaryotes. In eukaryotes , transcription occurs in the nucleus before translation can occur in the cytoplasm.
• Prokaryotes are haploid (contain one copy of each gene), while eukaryotes are diploid (contain two copies of each gene).
• Prokaryotes contain extrachromosomal plasmids, eukaryotes normally do not.
• Prokaryotes contain little repetitive DNA, eukaryotes contain high amounts of repetitive DNA.
• Eukaryotes are usually multicellular, while prokaryotes are normally unicellular.
• Eukaryotes contain lysosomes, while prokaryotes do not.
• Eukaryotes contain an endoplasmic reticulum, prokaryotes do not.
• Eukaryotes contain mitochondria or chloroplasts, prokaryotes do not.
• Eukaryotes contain larger ribosomes than the ribosomes found in prokaryotes.
• Eukaryotes contain a Golgi Apparatus, prokaryotes do not.
• The nuclear membrane of eukaryotic cells are permeable but selective, prokaryotic cells do not have a nuclear membrane
• Eukaryotes are typically larger in size than prokaryotes.
• Prokaryotes divide by binary fission, while eukaryotes divide by meiosis and mitosis.
• Eukaryotes wrap DNA around histones, prokaryotes have multiple proteins associated in wrapping of DNA
• Prokaryotic genes are expressed in groups called operons, eukaryotic genes are expressed individually
• Prokaryotic genes lack introns on their genes eukaryotic genes contain introns
• All genes on an operon of a prokaryotic cell are transcribed on the same piece of RNA, in eukaryotic cells, each gene is individually transcribed on their own strand of mRNA
• Prokaryotes have more compacted genomes compared to eukaryotes
2)
The rough endoplasmic reticulum (rER) is a cellular organelle that is studded with ribosomes on its outer face....