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U1L2 Prokaryote structure: general features
Lecture 2 of BMED2801 (Nick Coleman, 2009) at the University of Sydney
Very small and simple microbes that require a host cell to replicate
Smallest free living organisms that have their own metabolism
A circular bacteria that can appear in pairs, chains and tetrads
A straight or curved bacteria arranged in pairs, chains and pallisades
A short, rigid, spiral shaped bacteria with only one or few twists
A long, thin spiral shaped bacteria with many 'twists', a rare pathogen useful for diagnosis
A bacteria with a stalk that helps it attach to surfaces
A bacteria with straight or branching filaments
Cocci arranged in clusters (example from lecture)
Cocci arranged in chains (example from lecture)
Symptoms of gastric ulcers plus presence of spirilla
Respiratory distress plus presence of irregular rods in palisades are symptoms of...
Single circular chromosome plus structural proteins, NOT membrane bound
An circular or linear piece of double stranded DNA with no protein coat
A linear piece of double or single stranded DNA with a protective protein coat that attacks bacteria
The core genome of the bacterial cell
An antibiotic that targets the nucleoid by inhibiting DNA synthesis
An antibiotic that targets the nucleoid by inhibiting RNA synthesis
A complex structure made of rRNA and proteins that performs protein synthesis
A rRNA sequence that is conserved in all bacteria.
An antibiotic that inhibits ribosome function
Differentiates Gram-negative bacteria (red) from Gram-positive bacteria (purple)
Cell envelope in Gram-positive bacteria contains a thick layer of this
Cell envelope in Gram-negative bacteria has an outer membrane of this.
Protein that allows substances to pass through the outer membrane of Gram-negative bacteria
A protein on the exterior of a plasma membrane that is important for immune function
Prokaryote membranes contain hopanoids to give rigidity, which are a type of...
Selective permeability, metabolic processes and detection of environmental signals are all functions of the...
Structural polymer made of sugars and amino acids that is unique to bacteria
N-acetylglucosamine and N-acetylmuramic acid
The peptidoglycan backbone is made of a repeating disaccharide unit that consists of...
Peptidoglycan is crosslinked by...
The function of peptidoglycan
An antibiotic that targets peptidoglycan synthesis
The most external part of a lipopolysaccharide (LPS) that is seen by the immune system
Component of Lipid A that is very toxic to humans in Gram-negative infections
A detergent that disrupts the membrane structure of bacteria