Final Exam

Front 1

Which of the following bacterial cell structures play an important role in the creation of biofilms

Back 1

Both fimbriae and glycococalyces

Front 2

What scientist first hypothesized that gene sequences could provide new insights into the evolutionary relationships among all organisms including microbes

Back 2

Pauling

Front 3

Which of the following may be a component of bacterial cell walls

Back 3

Both lipoteichoic and mycolic acids

Front 4

The molecule that an enzyme acts upon is known as its

Back 4

Substrate

Front 5

All of the following were involved in developing the germ theory of disease except

Back 5

Pauling

Front 6

Non-cyclic photophosphorylation requires photosystem II

Back 6

True

Front 7

Some_____ use group translocation as a means of transport.

Back 7

Bacteria

Front 8

Which of the following products of glucose catabolism is a substrate for fatty acid synthesis

Back 8

Acetyl-CoA

Front 9

In the gram stain procedure iodine serves as a

Back 9

Mordant

Front 10

Ribozymes are enzymes that cleave the subunits of the ribosome

Back 10

False

Front 11

Which of the following was not an aspect of pastuers experiments to disprove spontaneous generation

Back 11

The flasks he used were sealed with corks

Front 12

What must one have before designing and conducting experiments

Back 12

A hypothesis

Front 13

Scanning tunneling microscope map the topography of a specimen by detecting the deflection of the probe tip

Back 13

False

Front 14

The pentose phosphate pathway generates all the necessary per cuts for nucleotide biosynthesis

Back 14

False

Front 15

A measurement of a microbe is reported ad 1 10-6

Back 15

Micrometers

Front 16

A function of the cytoskeleton unique to bacteria is

Back 16

Orienting the assembly of the cell wall

Front 17

According to kluyver and van Niel which of the following are true of basic biochemical reactions

Back 17

Basic biochemical reactions shared by all living things primarily involve transfer of electrons and hydrogen ions

Front 18

Several cellular structures of eukaryotes facilitate movement flagella Cillia the cytoskeleton and Centrioles which of the following is s feature common to all of them

Back 18

Composed of tubulin microtubulse

Front 19

Lipid soluble molecules would be expected to cross the cytoplasmic membrane by which of the following processes

Back 19

Diffusion

Front 20

The_____ stain is one in which eosin is used

Back 20

Negative

Front 21

What is the function of the cellular structure indicated by the "c" in the figure below

Back 21

Attach to surfaces and protect from dehydration

Front 22

Which Of the following statements about the endoplasmic reticulum (ER) is correct

Back 22

The ER is a transport system within the cytoplasm

Front 23

The cell walls of some_____ are composed of proteins

Back 23

Archaea

Front 24

One thousandth of a meter is a

Back 24

Millimeter

Front 25

The bacterium ____ adheres to and grows on teeth contributing to dental plaque formation

Back 25

Streptococcus mutans

Front 26

What member of the human intestinal microbiota occasionally causes life threatening disease

Back 26

Clostridium difficile

Front 27

Trichomonas vaginitis is usually transmitted during sexual intercourse because it

Back 27

Cannot live long outside of the body

Front 28

Cholera toxin is composed of five A subunits and one B subunit

Back 28

False

Front 29

The viruses responsible for the majority of infant deaths resulting from diarrhea in the world are the

Back 29

Rotaviruses

Front 30

Trichomonas increases patient's susceptibility to infection by HIV

Back 30

True

Front 31

When bacteria invade the kidney the results can be

Back 31

Pyelonephritis

Front 32

The noninfective obligately intracellular forms of chlamydia are called

Back 32

Initial bodies

Front 33

Some strains of the viruses responsible for genital warts can cause the development of

Back 33

Cervical cancer

Front 34

The primary treatment for viral gastroenteritis is

Back 34

Rehydration therapy

Front 35

Care in the handling and disposal in day care centers may prevent the spread of

Back 35

Giardia intestinals

Front 36

Urease is an important virulence factor of which of the following

Back 36

Helicobacter pylori

Front 37

Which of the following contributes to the invasiveness of Treponema pallidum

Back 37

Hyaluronidase

Front 38

A diagnosis of genital herpes is confirmed by

Back 38

Detection of herpesvirus DNA by PCR

Front 39

Invasive extraintestinal ambiasis is the most severe type of Entamoeba histolytica infection

Back 39

True

Front 40

Cholera toxin is composed of five A subunits and one B subunit

Back 40

False

Front 41

The typical sign of primary syphilis is

Back 41

A chance at the site of infection

Front 42

The typical sign of primary syphilis is

Back 42

A chance at the site of infection

Front 43

Clinical manifestations of chlamydia infections arise primary from an inflammatory response to the destruction of infected cells

Back 43

True

Front 44

The process of producing urine begins in the _______ of the kidney

Back 44

Nephron

Front 45

Salmonella is part of the normal microbiota of virtually all venerated except humans

Back 45

True

Front 46

Membrane rafts are found in the cytoplasmic membranes of

Back 46

Eukaryotes only

Front 47

The microbes commonly know as____ are single-celled eukaryotes that are generally motile

Back 47

Protozoa

Front 48

Inserting a gene from the hepatitis B virus into yeast so that the yeast produces a viral protein is an example of

Back 48

Genetic engineering

Front 49

What is the correct order of Kochs postulates

Back 49

III, II, I, IV

Front 50

Extensively folded lipid bilayers are sites of photosynthesis in both eukaryotes and prokaryotes

Back 50

True

Front 51

A microbe with a cell wall and no internal membrane enclosing the DNA is a prokaryote

Back 51

True

Front 52

Which of the following statements concerning endocytosis and exocytosis is true

Back 52

Endocytosis produces a structure called a food vesicle

Front 53

Which of the following statements concerning the endosymbiotic theory is false

Back 53

Eukaryotes were formed from the union of small anaerobic cells by larger aerobic cells

Front 54

During chemiosmosis electrons are pumped across a membrane to produce ATP

Back 54

False

Front 55

A bacterium inhabits the human nasal cavity where it obtains nutrients from secretions it neither harms nor benefits the host. The relationship is

Back 55

Commensial

Front 56

Eukaryotic sexual reproduction requires the process know as

Back 56

Meiosis

Front 57

Which of the following types of epidemiology applies Kochs postulates to study a disease

Back 57

Experimental

Front 58

The _____ are autotrophs which live in anaerobic environments thought to be similar to conditions on the early earth and may have diverged from other bacteria far back in time

Back 58

Deeply branching bacteria

Front 59

Which of the following is present in cells only during virus infection

Back 59

SsDNA

Front 60

The envelope portion of an enveloped virus is composed of

Back 60

Host cell membranes containing virus - encoded glycoproteins

Front 61

Botulism is transmissible by direct contact

Back 61

False

Front 62

All members of a virus family have the same type of genome structure

Back 62

True

Front 63

A syndrome is a group of symptoms and signs that collectively characterize a particular disease

Back 63

True

Front 64

Algae can have different types of photosynthetic pigments that allow them to photosynthesis at various depths of water

Back 64

True

Front 65

Many diseases of plants are caused by infectious RNA molecules lacking capsids

Back 65

True

Front 66

Macrophages effectively phagocytize and kill myobacterium tuberculosis

Back 66

FALSE

Front 67

Exposure to large accumulations of bird droppings may result in which of the following mycoses

Back 67

Histoplasmosis

Front 68

The skin is an effective barrier against invading microbes because

Back 68

The outer layers are dead and covered in salt

Front 69

A young woman developes a fever after a recent trip to the Caribbean island. She also experiences severe head ache and pain in the bones after a few days she also developed a rash

Back 69

Dengue virus

Front 70

Primary infection with Epstein - bar virus is

Back 70

Infectious mononucleosis

Front 71

Horses and humans are considered dead end hosts for arboviruses

Back 71

True

Front 72

Polio viruses is most often transmitted via

Back 72

Contaminated water

Front 73

A petechial rash starting on the hands and feet and spreading to the torso is characteristic of

Back 73

RMSF

Front 74

Viral meningitis is usually more serious than bacterial meningitis

Back 74

False

Front 75

Spreading black necrosis swelling pain and froth or bubbles are characteristics of

Back 75

Gas gangrene

Front 76

A specific wave length of UVA can be used to treat

Back 76

Acne

Front 77

A person enters the emergency room with constant high fever extensive edema low blood pressure and petechia from which of the following may they be sugfering

Back 77

Septicemia

Front 78

Clostridium perfringens cause necrotizing fascilitis

Back 78

False

Front 79

Pityriasis characteristics appearance is the result of a fungal infection causing changes in the production of melanin

Back 79

True

Front 80

The ______ are gram-positive pleomorphic bacteria commonly found on the skun

Back 80

Diphtheroids

Front 81

Which of the following is classified as a spongiform encephalopathy

Back 81

Variant Creutzfeldt-Jakob disease

Front 82

Some____use group translocation as a means of transport

Back 82

Bacteria

Front 83

Ribozymes are enzymes that cleave the subunits of the ribosome

Back 83

False

Front 84

What must one have before designing and conducting experiments

Back 84

A hypothesis

Front 85

Scanning tunneling microscope map the topography of a specimen by detecting the deflection of the probe tip

Back 85

False

Hint 85

False

Front 86

The pentose phosphate pathway generates all the necessary precursors for the nucleotide biosynthesis

Back 86

False

Front 87

A function of the cytoskeleton unique to bacteria is

Back 87

Orienting the assembly of the cell wall

Front 88

A function of the cytoskeleton unique to bacteria is

Back 88

Orienting the assembly of the cell wall

Front 89

According to kluyver and van Niel which of the following are true of basic biochemical reactions

Back 89

Basic biochemical reactions shared by all living things primarily involve transfer of electrons and hydrogen ions

Front 90

Lipid soluble molecules would be expected to cross the cytoplasmic membrane by which of the following processes

Back 90

Diffusion

Front 91

The _____ stain is one of in which rosin is used

Back 91

Negative

Front 92

Which of the following statements about the endoplasmic reticulum ( ER ) is correct

Back 92

The ER is a transport system within the cytoplasm

Front 93

The cell walls of some _ _ are composed of proteins

Back 93

Archaea

Front 94

An axenic environment is one

Back 94

That is free of microbes

Front 95

The taxonomic approach to classifying disease is based on the

Back 95

Type of microbe that causes disease

Front 96

Some strains of staphylococcus aureus can invade the body and cause disease such as pneumonia and bactetemia

Back 96

True

Front 97

The enzyme lysozyme is critical for which of the stages of the bacteriaphage T4 infection cycle

Back 97

Entry and release

Front 98

All viruses use the host cells nucleic acid polymerases for replication

Back 98

False

Front 99

Phototrophic bacteria that use chlorophyll II a are in the phylum

Back 99

Cyanobacteria

Front 100

Microbes known as transient microbiota are

Back 100

Organisms that remain in the body for a short time

Front 101

Multicellular organism with had exoskeleton segmented bodies and four pairs of jointed legs in the adult stage are

Back 101

Arachnids

Front 102

Prions cause disease in

Back 102

Mammals

Front 103

Assembly of new viruses is a process that usually requires the direction of a variety of viral and cellular enzymes

Back 103

False

Front 104

Blastomycosis result from

Back 104

Inhalation of fungal spores

Front 105

Smallpox vaccination was originally discontinued in the 1980s because of adverse effects of the vaccine

Back 105

True

Front 106

Which of the following diseases is almost diagnostic for aids

Back 106

Pneumoncytis pneumonia

Front 107

Humans are the only hosts for rickettsia rickittsi

Back 107

False

Front 108

Which of the following is true of foodborne

Back 108

It is a intoxication disorder

Front 109

Herpesvirus infections can be controlled with chemotherapeutic agents

Back 109

True

Front 110

Chromobladtomycosis is rarely seen disease and can be treated easily with appropriate drugs

Back 110

False

Front 111

Contaminated food is the source of_____ which causes meningitis in the elderly and susceptible persons

Back 111

Listeria monocytogenes

Front 112

Which of the following causes of viral meningitis is transmitted by the fecal oral route

Back 112

Echovirus

Front 113

A blood sample is excited on a microscope bacterial cells are detected in the sample. The patient has

Back 113

Bactetemia

Front 114

Variant Creutzfeldt-Jakob disease can be avoided by avoiding

Back 114

Contaminated meat

Front 115

Functions of the meniges include

Back 115

Support of the brain and spinal cord and protection from external shock

Front 116

Clostridium botulinum can grow in the intestinal tracts of both infants and adults

Back 116

False

Front 117

The seriousness of coccidionedes infections can be attributed to the cycle of formation and rupture of spherules

Back 117

True