Ch2 Flashcards
What other synonyms for peptidoglycan?
Murien
Mucopeptide
Peptidoglycan allows the cell to withstand high osmotic pressure, true or false?
False
low
Endotoxins are actively secreted from
Bacteria
The symptoms caused by the endotoxin is different from each other while the severity is the same
True or false?
Same / different
Symptoms caused by exotoxins are different
True / false?
True
members of the genus Neisseria, have an outer lipooligosaccharide (LOS) containing very few repeating units of sugars.
True
What are two distinct areas in cytoplasm?
1 amorphous matrix
2 inner
Hat
What is volutin?
Reserve of high energy stored in the form of polymerized metaphosphate
Which granules are known as metachromatic granules?
Volutin
Metachromatic granules are a characteristic feature of which bacteria?
Corynebacterium diphtheriae
Borrelia burgdorferi is:
A bacilli
B Cocci
C Spirochetes
D None of the above
C
What disease does Borrelia burgdorferi cause?
Lyme disease
Bacterial DNA has no exons True or false
False
It has no introns 
Plasmids occur in:
A. Gram-negative bacteria
B. Gram-positive bacteria
C. A+B
D. none of the above
C
What are two types of plasmid?
Transmissible
Nontransmissible
What is the weight for transmissible plasmids?
40-100 million
What is the molecular weight for nontransmissible plasmids
3-20 million
How many copies of transmissible plasmids are presented in one cell?
1-3
How many copies of nontransmissible plasmids are presented in one cell?
10-60
Bacteriocins are:
A. Lipid
B. carbohydrate
C. protein
C
How many different serotype of streptococcus pneumonia?
91
What is quellung reaction?
What is chemotaxis?
orientation or movement of an organism or cell in relation to chemical agents.
What is the subunit of flagella?
Is composed of many subunits of a single protein flagellin allegedly
How do spirochetes move?
By using a flagellum-Like called axial filament
Mini rods have flagella but most cocci don’t
What’s the movement of axial filament called?
Undulating
Pili is hair like filaments
Flagella is whiplike appendages
What are the important role of pili in bacteria
They mediated attachment of bacteria to specific receptors on the human cell surface
