Microbiology Chapter 4 - Prokaryotes
and Eukaryotes Questions and
Answers.
What are diplococci? - Answer Cocci that remain in pairs after dividing
What are streptococci - Answer Cocci that divide and remain attached in chainlike patterns
What are tetrads? - Answer Cocci that divide in two planes and remain in groups of four
What are sarcinae? - Answer Cocci that divide in three planes and remain attached in
cubelike groups of eight
What are staphylococci? - Answer Cocci that divide in multiple planes and form grapelike
clusters or broad sheets
What does monomorphic mean? - Answer Cocci maintain a single shape
What does pleomorphic mean? - Answer Cocci have many shapes
What is glycocalyx? - Answer A substance secreted by prokaryotes that surround a cell. It is a
sticky polymer composed of polysaccharide, polypeptide or both
Made inside the cell and then secreted to the cell surface
Often described as a capsule or a slime layer
What is an extracellular polymeric substance (EPS)? - Answer A glycocalyx that helps cells in a
biofilm attach to their target environment and to each other
What are the general characteristics of a prokaryote? - Answer One circular chromosome
No histones
No organelles
Bacteria with peptidoglycan cell walls
Archea with pseudomurein cell walls
Binary fission for reproduction
, What are the general characteristics of a eukaryote? - Answer Paired chromosomes in a
nuclear membrane
Histones
Organelles
Polysaccharide cell walls
Mitotic spindle
Cocco- - Answer Cluster
Strepto- - Answer Strand
Diplo- - Answer Paired
Vibrio - Answer Slight curve, macaroni noodle
Spirillum - Answer Thick spiral
Spirochete - Answer Skinny spiral
When looking at the structure of a prokaryote, what is in between the capsule and the plasma
membrane? - Answer The cell wall
Capsule, cell wall, plasma membrane
What size ribosome is present in a prokaryote? - Answer 70s
What are the general characteristics of glycocalyx? - Answer Outside of the cell wall
Sticky
Extracellular polysaccharide allows cell to attach
What is the difference between a capsule and a slime layer? - Answer Capsule: protection
from phagocytosis and usually neatly organized
Slime layer: unorganized and loose
and Eukaryotes Questions and
Answers.
What are diplococci? - Answer Cocci that remain in pairs after dividing
What are streptococci - Answer Cocci that divide and remain attached in chainlike patterns
What are tetrads? - Answer Cocci that divide in two planes and remain in groups of four
What are sarcinae? - Answer Cocci that divide in three planes and remain attached in
cubelike groups of eight
What are staphylococci? - Answer Cocci that divide in multiple planes and form grapelike
clusters or broad sheets
What does monomorphic mean? - Answer Cocci maintain a single shape
What does pleomorphic mean? - Answer Cocci have many shapes
What is glycocalyx? - Answer A substance secreted by prokaryotes that surround a cell. It is a
sticky polymer composed of polysaccharide, polypeptide or both
Made inside the cell and then secreted to the cell surface
Often described as a capsule or a slime layer
What is an extracellular polymeric substance (EPS)? - Answer A glycocalyx that helps cells in a
biofilm attach to their target environment and to each other
What are the general characteristics of a prokaryote? - Answer One circular chromosome
No histones
No organelles
Bacteria with peptidoglycan cell walls
Archea with pseudomurein cell walls
Binary fission for reproduction
, What are the general characteristics of a eukaryote? - Answer Paired chromosomes in a
nuclear membrane
Histones
Organelles
Polysaccharide cell walls
Mitotic spindle
Cocco- - Answer Cluster
Strepto- - Answer Strand
Diplo- - Answer Paired
Vibrio - Answer Slight curve, macaroni noodle
Spirillum - Answer Thick spiral
Spirochete - Answer Skinny spiral
When looking at the structure of a prokaryote, what is in between the capsule and the plasma
membrane? - Answer The cell wall
Capsule, cell wall, plasma membrane
What size ribosome is present in a prokaryote? - Answer 70s
What are the general characteristics of glycocalyx? - Answer Outside of the cell wall
Sticky
Extracellular polysaccharide allows cell to attach
What is the difference between a capsule and a slime layer? - Answer Capsule: protection
from phagocytosis and usually neatly organized
Slime layer: unorganized and loose
