Lec 3-3 - Bacteria Structure / Function

Question 1

guy who discovered bacteria

Answer 1

leeuwenhoek

Question 2

bacteria size

Answer 2

.2 micrometer diameter

Question 3

bacteria is blank compared to virus

Answer 3

larger

Question 4

spherical bacteria

Answer 4

coccus

Question 5

rod bacteria

Answer 5

bacillus

Question 6

spiral bacteria

Answer 6

spirilla/spirochete

Question 7

intermediate shaped bacteria

Answer 7

coccobacillus, vibrio

Question 8

pair of cocci

Answer 8

diplococcus

Question 9

chain of cocci

Answer 9

streptococcus

Question 10

large cluster of cocci

Answer 10

staphylococcus

Question 11

gram positive stains blank

Answer 11

blackish dark

Question 12

gram negative stains blank

Answer 12

red (safranin)

Question 13

bacteria not stained by gram stain does not have a blank

Answer 13

cell wall

Question 14

stain that can be used to stain bacteria without cell wall

Answer 14

acid fast

Question 15

strep mutans is blank

Answer 15

gram positive

Question 16

mycoplasma does not have a cell wall and stains with blank

Answer 16

fluorochrome

Question 17

bacteria has one circular chromosome dna called a blank

Answer 17

nucleoid

Question 18

this might be involved in chromosome dna separation but ultimately has an unknown function

Answer 18

mesosome

Question 19

blank form bacteria do not have cell walls

Answer 19

L

Question 20

four things needed for viability

Answer 20

cell wall, membrane, ribosomes, nucleoid

Question 21

these are for energy storage

Answer 21

storage granules

Question 22

these are for adherence, secretion

Answer 22

pili, fimbriae

Question 23

these are for motility/chemotaxis

Answer 23

flagella

Question 24

this is for antiphagocytosis and adherence

Answer 24

capsule

Question 25

cell membrane of bacteria do not have blank

Answer 25

sterol

Question 26

only two bacteria that have sterol

Answer 26

mycoplasma, bacteria that cause lime disease

Question 27

percent of cell membrane that is proteins

Answer 27

70%

Question 28

cell membrane is important as a blank barrier, a blank of nutrients, and a producer of blank

Answer 28

osmotic, transporter, energy

Question 29

cell wall is made mostly out of blank and is unique to bacteria

Answer 29

peptidoglycan

Question 30

peptidoglycan in the cell walls is the target of blank

Answer 30

penicillin

Question 31

cell wall prevents osmotic blnk

Answer 31

lysis

Question 32

bacteria has blank in the cell wall that prevents cleavage by peptase

Answer 32

DAP

Question 33

gram positive have a very blank cell wall

Answer 33

thick

Question 34

gram positive uses blank for its cell wall instead of blank

Answer 34

L-Lysine, DAP

Question 35

both gram positive and negative use blank in its cell wall

Answer 35

D-alanine

Question 36

these are usually electrically charged and are for gram positive (not gram negative) adherence to host cell

Answer 36

teichoic acid

Question 37

gram positive have blank cell membranes

Answer 37

1

Question 38

gram negative have blank cell membranes

Answer 38

2

Question 39

gram blank is less sensitive to antibodies because of cell membranes

Answer 39

negative

Question 40

space between outer and inner membrane that only gram negative has

Answer 40

periplasmic space

Question 41

gram negative has this which gram positive does not

Answer 41

LPS

Question 42

LPS is toxic and can cause fever and blank

Answer 42

shock

Question 43

three components of lps

Answer 43

lipid a (toxic part), core polysaccharide, o antigen (glycan polymer)

Question 44

o antigen varies between species and strains like blank

Answer 44

antigenic determinants

Question 45

lps remains blank even if the bacteria is dead

Answer 45

immunoactive

Question 46

thick polysaccharide attached to cell wall or membrane

Answer 46

capsule

Question 47

thin polysaccharide attached to cell wall or outer membrane

Answer 47

slime layer

Question 48

capsule is hydrophilic and does not blank

Answer 48

stain

Question 49

how to stain bacteria with capsule

Answer 49

negative stain

Question 50

pili for adhesion and sticking to host

Answer 50

common

Question 51

pili for exchange between gram negative bacteria

Answer 51

sex pili

Question 52

three parts of flagella

Answer 52

basal body (innermost), hook, filament (propeller)

Question 53

three rings of flagella

Answer 53

MS, P, L

Question 54

this causes the mechanic force of flagella

Answer 54

proton gradient