Module 2 Section 1 - Prokaryotic Cells Flashcards
what is said about the size of prokaryotic cells
they are very small (less than 2 micrometres diameter)
what is said about the arrangement of DNA for prokaryotic cells
DNA in prokaryotic cells are circular
what is said about the presence of a nucleus in prokaryotic cells
no nucleus - DNA is free in cytoplasm
what is said about cell wall in prokaryotic cells
cell wall is present but it is made of a polysaccharide instead of cellulose or chitin
what is said about the amount of organelles in prokaryotic cells
few organelles, no membrane bound organelles e.g. mitochondria
what is said about a flagella in prokaryotic cells
made of protein flagellin arranged in helix
what is said about the size of ribosomes in prokaryotic cells
they are small
what is siad about the size of eukaryotic cells
larger cells about 10-100 micrometres
what is said about the DNA in eukaryotic cells
linear
what is said about the presence of a nucleus in eukaryotic cells
nucleus present - dna inside nucleus
what is said about the presence of cell walls in eukaryotes
no cell wall in animals
cellulose cell wall in plants
chitin cell wall in fungi
what is said about the amount of organelles in eukaryotes
many organelles - mitochondria and other membrane bound organelles present
what is said about the flagella in eukaryotes
flagella is made of microtubule proteins arranged in 9+2 formation
what is said about the ribosomes in eukaryotes
larger ribosomes
give an example of a prokaryote
E.coli bacterium
