Microbiology Chapter 4

The controlling unit of a cell that governs activity and heredity is called the _______

• nucleus

• flagella

• brain

• mitochondria

Streptococcus is sometimes called the water bug because it is frequently found in water

• false

• true

 _______ are often pathogenic to humans  because they grow best at body temperature

• mesophiles
• psychrophiles
• thermophiles
• audiophiles

Herpes simplex is a_____ disease 

• viral
• bacterial
• prion
• rare

Bacteria that require oxygen to grow are called _______ bacteria

• anaerobic

• aerobic

• pathogenic

• mesophile

Bacteria are divided into three main shape classifications; strepti, bacilli and spirilla.

• false
• true

sun light is lethal to the ________ stage of pathogens

• vegetative
• endospore
• gram stain
• huh?

The bacterial reproductive process that takes place when a mother cell divides into two daughter cells is called _______ _______.

• binary fission

• replicant fusion

• septic division

• Lerowe's process

Tetanus and botulism do not require oxygen to grow so they are classified as _______ bacteria

• anaerobic
• aerobic
• pathogenic
• gram negative

Healthy people do not harbor bacteria

• false
• true