exam 1 part 3 microbiology

a tuft of flagella from a single site referred to as

lophotrichous arrangement

flagella dispersed over the surface is referred to

peritrichous

types of flagellar arrangement with more than one flagellum

Amphitrichous, Lophotrichous, and Peritrichous

Move toward a chemical attractant by flagellar motion referred to as

positive chemostaxis

bacteria move in response to light source, this movements is referred as

photostaxis

basal body of flagellum is located w/in the……..

cytoplasmic membrane, wall, and outer membrane

bacterial cells that are gram-neg are typically more resistant to drug tx and chemical control methods than

gram-pos cells

The functions of the cell wall include maintaining the shape of the bacterium, and

preventing destruction with changes in osmotic pressure

Cell wall provides

shape, support, and resistance to osmotic pressure

cytoplasm 

The internal gelatinous matrix of a cell, mostly composed of water

Amino acids, Cytoskeleton and Ribosome

found in the cytoplasm of a bacterial cell

Two of the following are found in the cytoplasm of a bacterial cell

Ribosomes and chromosomes

Bacterial endospores are involved in survival w/h unlike spore of fungi,

bacterial endospores are not involved in reproduction.

Early bacteriologists classified bacteria based on

shape

What structure is used in the Bergey's Manual of Determinative Bacteriology to divide bacteria and archaea into four major divisions?

cell wall

archaea are

more closely related to Domain Eukarya than to Bacteria, able to exist in extreme environments and prokaryotic

Aerobic bacteria are termed aerobic because they use _______ in their metabolism

oxygen

methods used to identify bacteria: 

• Bacterial biochemistry

• Cell morphology

• Genetic techniques

Why is it difficult to group bacteria into species?

• Bacteria can alter their genetic makeup

• Bacteria can accept genetic material from others

• Bacteria do not use a typical mode of sexual reproduction