Microbiology - Bacteria

Which of these is a cocci occurring in pairs?

• Streptococci

• Diplococci

• Streptococci

• Staphylococci

Based on the diagram above, the flagella arrangement of bacteria cell is known as ___________.

• Petritrichous

• Monotrichous

• Lophotrichous

• Amphitrichous

To differentiate between Gram positive and Gram negative bacteria _____________________ procedure will be used.

A Gram negative cell wall is __________ than a Gram positive one.

Which of the following statement is TRUE regarding Gram positive bacteria?

• Cell wall have high lipid content

• Lipopolysacharides layer is present

• crystal violet stain is retained

• Have 2 layers of cytoplasmic membrane.

What is the function of Pilus in prokaryotic?

• for swimming movement

• Attachment to surface

• Transfer of DNA to other cells

• Serve as defense mechanism

Lipopolysaccharides also can be known as

• Exotoxin

• Endotoxin

________________ is ability to produce disease in host organism.

Endotoxin is extremely potent than exotoxin.

• True

• False

Bacteria endopsore usually occur in Gram positive bacteria.

• True

• False