microbiology

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

a proteosome

-functions to degrade misfolded eukaryotic proteins -produces peptides for antigen presentation during immune responses hydrolyzes ubiquitin marked proteins in an ATP dependent process

NAM

N- acetylmuramic acid

bacteria & archea

S layer is fouond in

microtubule

a filament organelle comprised of tublins with a diameter or 25 nm

false

althougth kochs postulates developed over 100 years ago its still being used in all human infectious disease

humoral immunity

anti toxins (antibodies)

lister

antiseptic surgery

true

archeal cells do no cause disease to humans

false

bacterium flagellum rotation is powered by the hydrolisis of ATP

negatively charged

basic dyes such as methylene blue bind to cellular molecules that are

perplasmic space

both it is located between the plasma membrane and outer membrane of gram m=negative bacteria and it contains hydrolytic enzymes and binding proteins involved in nutrient acquisition are true

virulence factor

capsule s-layer flagella

laphatuchous

cluster of flagella at one or both ends of bacterium

parts of peptidoglycan

covalent bonds amino acids

they are resistant to harsh enviorments

endospores represent a challenge to the fields of industrial and medical micro because

ether bond l- glycerol

found in archeal membrane

peptide interbridges

found in the peptidoglycan cell wall structure of gram positive

false

gram negative bac. is more sensitive that gram positive bacteria to some antibiotics because gram negative outer membrans is more permeable to drugs than is gram positive

the inventor

gram stain delivers its name from

safranin

gram staining procedure counterstain

they all have cell membrane

how are archeal bacterial and eukaryotic cells alike

pink,pink

if decolorizier is left on for too long in the gram negative staining procedure, gram positive organisms will be stained ________ and gram negative will be stained _____

false

in addition to being more complex chemically, the basic structure of the plasma membrane of eukaryotic cells is very different from that of prokaryotic cells

immersion oil

increases the amount of light passing through a specimen

inclusion bodies

intracellular granules of organic that are stockpiled by bactria for future use

peptidoglycan

it occurs only in bacteria it contains a pedpide portion and a glycan portion

thylakoid membrane

light reaction of photosynthesis occurs in

fluorence microscope

microscope that exposes specimens to ultra violet or blue light

false

negative staining is used to observe bacterial morpholgy

negative

net charge on a bacterial cell surface

active transport & group tranlocation

nutrients can be concentrated from dilute solutions by

pili

plays an important role in bacterial recombination

false

prion is a type of viruse that can infect a human

attatch firmly to the slide

prior to staining smears of microorganisms are heat fixed in order to

archea

pseudopeptidoglycan occurs in

false

red light has a longer wavelength that blue light so red will give the better resolution during light microscopoy

bacterial plasmids

replicate independently carry genes for drug resistance carry genes that enhance survival of bacterium under certain coditions

growth factors

required organic compunds becacuse they are essential cell compounds

in eukaryotic cells

rotation is powered by ATP,

active transport

saturable uptake rate use of ATP or proton motive force of metabolic energy can move materials against aa concentration gradient

stropoccus

straight or branched chains of spherical bacteria are referenced to

peuplasm

substance that occupies periplasmic space

immunology

the branch of micro that deal with the mechanisms in wich the human body protects itsels=f from disease

smear

the fild of bacteria that have been air dried onto a glass microscope slide

differential staining

the gram stainig procedure is an example of

tuberculosis, and leprosy

what disease do you use acid fast staining

they are carbohydrates

what do NAM and NAG have in common

only founf in gram neg. bacteria contain phospholipids double layered structures

what do the outer membrane and the cytoplasmic membrane have in common

it stains decolorized cells

what does the counter stain do in a different stain?

lipopolysaccharide

what is present in gram negative cell wall and not in gram positive bacteria

provide contrast

what is the purpose of using stains in slide preperation

non resistant staphyloccus species

what would be lyced by penicillin

treatment of the disease with a broad spectrum oral antimicrobial dependably eradicates

which is not one of kochs postulates

calcium dipicolinic acid dehydrated core

which of the following can make endospores very resistat to various enviormental factors

viruses - prokaryotes (viruses considered neither)

which of the following is mismatched

the use of DNA for the storage of genetic information the presense of ribosomes for protein synthesis the presence of membrane delimited organellls in cytoplasm

which of the following is useful in distinguishing between prokaryotic and eukaryotic cells

mycobacterium

who has mycotic acids as part of their cell wall structure?

Pasteur Redi

who worked on the concept of spontaneous generation theory

it protects against dehydration loss of nutrients protects against phagocytosis

why is a capule important to bacterial cell

micro nutrients

zinc copper maganese


संबंधित स्टडी सेट्स

Chapter 3 - Prenatal Development and Birth

View Set

Fundamentals of Nursing EAQs Ch. 21 Ethnicity and Culture

View Set

similarities and differences between ionic and covalent bonds

View Set

Order of Operations and Exponents

View Set

BIOL 1030 Mastering Biology Chapter 40

View Set

Topic 3, Threats and Vulnerabilities Part V

View Set

Chapter 2 Test- Laws of Motion (COPY OF TEST)

View Set

Conversions between units of time

View Set