Some Gen Micro

Question 1

coccus

Answer 1

spherical

Question 2

bacillus

Answer 2

rod shaped

Question 3

coccobacillus

Answer 3

rod-shaped with round ends, mistaken for coccus

Question 4

spirochete

Answer 4

spiral shaped cell with unique motility

Question 5

pleomorphic

Answer 5

vary in shape and lack a single characterstic form

Question 6

cell wall with high lipid content, do not readily take up stain

Answer 6

acid fast

Question 7

require unique dyes and heat to stain

Answer 7

acid fast

Question 8

mycobacterium- genus in which all species are _______ _____

Answer 8

acid fast

Question 9

cell membranes have high sterol content= rigidity of cell

Answer 9

cells that lack cell wall

Question 10

T/F: mycoplasms that lack a cell wall are not susceptible to antibiotics that inhibit cell wall synthesis, like penicillin

Answer 10

True

Question 11

Passive transport rarely used in bacteria

Answer 11

facilitated diffusion

Question 12

various transport proteins used to move substances across membrane, requires energy

Answer 12

active transport

Question 13

What is the site of oxidative phosphorylation of bacteria?

Answer 13

cell membrane

Question 14

What is the location of enzymes used in DNA replication?

Answer 14

cell membrane

Question 15

invaginations of the cytoplasmic membrane that can form into vesicles, possible role in cell division

Answer 15

mesosome

Question 16

the space betwen the inner and outer membranes in G- cells

Answer 16

periplasmic space,
G-: store degradative enzymes in the periplasmic space
G+: lack periplasmic space, instead secrete exoenzymes and perform extracellular digestion

Question 17

region of bacterial cell containing DNA, generally circular

Answer 17

nucleoid

Question 18

small extrachromosomal DNA, autonomous replication

Answer 18

plasmid

Question 19

organelles composed of ribosomal DNA and protein

Answer 19

ribosomes

Question 20

accumulation of high molecular weight polymers, also called inclusion bodies, granular includes, typically contain glycogen

Answer 20

storage granules

Question 21

characteristics of this external structure include:

• motility
• can act as a virulence factor

Answer 21

flagella

Question 22

characteristics of this external structure include:

• serve as adherence factors
• sex __ transfer plasmids during conjugation
• can act as a virulence factor

Answer 22

pili, aka fimbriae

Question 23

characteristics of this external structure include:

• glyocalyx
• protective walls around soem G+ and G-
• virulence factor- impedes phagocytosis

Answer 23

capsule (slime layer)

Question 24

characteristics of this external structure include:

• 2 G+ genera, Bacillus, Clostridium
• protective, not reproductive
• resist heat, drying, disinfectants

Answer 24

endospore