Prokaryotes do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the (a)   .

Prokaryotes, their cell walls almost always contain the

polysaccharide (a)   .

Prokaryotes usually divide by (a)   .

(a)   are collective of one or more types of microorganisms that can grow on many different surfaces.

A biofilm is defined as a community of micro-organisms irreversibly attached to a surface and encased in an (a)   .

(a)   are usually round but can be oval, elongated, or flattened on one side.

Cocci that remain in pairs after dividing are called (a)  

Cocci that divide and remain attached in chainlike patterns are called (a)   .

Cocci that divide in two planes and remain in groups of four are known as (a)   .

Cocci that divide in three planes and remain attached in cube-like groups of eight are called (a)   .

Cocci that divide in multiple planes and form grapelike clusters or broad sheets are called (a)   .

(a)   divide only across their short axis

Most bacilli appear as single rods, called (a)   .

Bacilli that apear in pairs after division.

(a)  

Bacilli that occur in chains.

(a)  

Bacilli that are oval and look so much like cocci that they are called (a)   .

Bacteria that look like curved rods are called (a)   .

(a)   , have a helical shape, like a corkscrew, and rigid bodies.

Another group of spirals are helical and flexible; they are called (a)   .

the genus (a)   ; and triangular cells.

they maintain a single shape

(a)  

they can have many shapes

(a)  

is a viscous (sticky), gelatinous polymer that is external to the cell wall and composed of polysaccharide, polypeptide, or both. Its chemical composition varies widely with the species.

(a)  

If the substance is organized and is firmly attached to the cell wall, the glycocalyx is described as a (a)   .

If the substance is unorganized and only loosely attached to the cell wall, the glycocalyx is described as a (a)   .

are long filamentous appendages that propel bacteria.

(a)  

Flagella may be distributed over the entire cell.

(a)  

Flagella may be at one or both poles or ends of the cell.

(a)  

Flagella may be a single flagellum at one pole

(a)  

A tuft of flagella coming from one pole.

(a)  

flagella at both poles of the cell.

(a)  

(a)   is a bacterial genus that naturally lacks cell walls.

Archaea have (a)   ; they lack peptidoglycan.

Acid-fast cell walls have a layer of (a)   outside a thin peptidoglycan layer.

In the presence of lysozyme, gram-positive cell walls are destroyed, and the remaining cellular contents are referred to as a (a)   .

In the presence of lysozyme, gram-negative cell walls are not completely destroyed, and the remaining cellular contents are referred to as a (a)   .

(a)   are gram-positive or gram-negative bacteria that do not make a cell wall.

(a)   , irregular infoldings of the plasma membrane, are artifacts, not true cell structures.

Plasma membranes can be destroyed by (a)   .

In (a)   , energy is expended to modify chemicals and transport them across the membrane.

reserve deposits found in prokaryotic and eukaryotic cells.

(a)  

(a)   are resting structures formed by some bacteria; they allow survival during adverse environmental conditions.

Such tools are designed to perform several biochemical tests simultaneously and can identify bacteria within 4 to 24 hours.

(a)