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Prokaryotic Cells (1)
Details the characteristics of prokaryotic cells
21
Biology
Not Applicable
02/07/2009

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Cards

Term
What shape are cocci bacteria?
Definition
Round
Term
What shape are bacilli bacteria?
Definition
Rods
Term
What is the third bacterial shape following cocci and bacilli?
Definition
Spirals
Term

How do prokaryotes compare in size, complexity, and age to eukaryotes?

(See prokaryote vs. eukaryote flash cards)

Definition
Prokaryotes are smaller, simpler, and more ancient
Term
What structure carries the genetic information of a prokaryote?
Definition
A nucleoid (single, long, circular piece of DNA)
Term
Where do most metabolic functions take place in prokaryotes?
Definition
On the plasma membrane
Term
What structure in bacterial cells contains peptidoglycan and helps to prevent osmotic lysis?
Definition
Cell Wall
Term
How are nutrients and wastes transported in and out of the cell?
Definition
Via the plasma membrane
Term
What are the three basic methods of transport across the plasma membrane of bacterial cells (prokaryotic and eukaryotic)?
Definition
simple diffusion, facilitated diffusion, and active transport
Term
What bacterial "resting cells" are the toughest biological particles?
Definition
Endospores
Term
Some bacteria are mobile via their own propulsion. What structures provide this propulsion (motility)?
Definition
Flagella or axial filaments
Term
What structure may help a bacterium cause disease (it is a "virulence factor")?
Definition
The glycocalyx (capsule or slime layer)
Term
What two structures can help prokaryotic bacteria attach to other prokaryotic or eukaryotic cells?
Definition

Pili and Fimbriae

(singular of pili is pilus)

Term

Name structure 1

[image]

Definition
Cell wall
Term

Name structure 2

[image]

Definition

Capsule

This layer is referred to as the glycocalyx

If the material of the glycocalyx is loose/disorganized, then it may be referred to as the slime layer

Term

Name structure 3

[image]

Definition
Plasma Membrane
Term

Name structure 4

[image]

Definition
Nucleoid
Term

Name structure 5

[image]

Definition
Ribosomes
Term

Name structure 6

[image]

Definition
Pilus
Term

Name structure 7

[image]

Definition
Flagellum
Term
Are plasmids necessary to prokaryotic cell reprodution?
Definition

No

Plasmids are small, circular DNA molecules that replicate independently of the chromosome (of the cell)

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