Chapter 1 Flashcards
What is often the first step in bacterial identification?
Microscopic characterization
Father of protozoology and bacteriology
Anton van Leeuwenhoek
unicellular organisms that are classified as prokaryotes
Bacteria
They lack a nuclear membrane and a true nucleus, mitochondria, an endoplasmic reticulum, and Golgi bodies
Bacteria
Typical size of prokaryote in diameter
0.4–2μm
Typical size of prokaryote in length
0.5–5μm
Location of genome in prokaryote
In the nucleoid, at the mesosome
Chromosomal DNA of prokaryote
Circular; complexed with RNA
Extrachromosomal circular DNA of prokaryote
Plasmids
Reproduction of prokaryote
Asexual (binary fission)
Size of ribosomes of prokaryote
70 S consisting if 50 S and 30 S subunits
Electron transport for energy of prokaryote
In the cell membrane
Typical size in diameter of eukaryote
10–100μm
Typical size in length of eukaryote
> 10μm
Nucleus of eukaryote
Membrane-bound nucleus
Location of genome in eukaryote
In the nucleus
Chromosomal DNA in eukaryote
Linear
Extrachromosomal circular DNA in eukaryote
In mitochondria, chloroplasts, and cytoplasm
Reproduction of eukaryote
Sexual and asexual
Ribosomes of eukaryote
80 S consisting of 60 S and 40 S subunits
Electron transport for energy in eukaryote
In the inner membrane of mitochondria and chloroplasts
Plasma membrane of prokaryote
Phospholipid bilayer; lacks carbohydrates
Plasma membrane of eukaryote
Phospholipid bilayer; also contains glycolipids and glycoproteins
