Micro Exam 1

Front 1

Disease causing micro-organisms are called

Back 1

Pathogen

Front 2

The microorganisms that recycle nutrients by breaking down dead matter and wastes

Back 2

Decomposers

Front 3

microorganisms that do not have a nucleus in their cell

Back 3

Prokaryotes

Front 4

When humans manipulate the genes of microorganisms the process is called

Back 4

Genetic engineering

Front 5

Which of the following is not considered microorganisms

Back 5

Organisms that canbe seen with the naked eye

Front 6

All organisms are best defined as organisms that

Back 6

Are too small to be seen with the unaided eye

Front 7

Which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms

Back 7

Lack of cell structure

Front 8

The Dutch Merchant who made and used quality magnifying lenses to see record microorganisms

Back 8

Antonie van Leewenhoek

Front 9

Pasture use swan neck flask in his experiments to prove that

Back 9

There are microbes in the air and living things do not arise from none living things

Front 10

What is not a process in the scientific method

Back 10

belief in perceived ideas

Front 11

Spontaneous generation is the belief that

Back 11

Living things can arise from nonliving things

Front 12

Koch's postulates are criteria used to establish

Back 12

The causative agent of an infectious disease

Front 13

Which of the following is a taxon that contains all other taxa

Back 13

Kingdom

Front 14

The smallest and most significant taxon

Back 14

Species

Front 15

A scientist discovers a new microbial species it is a single-celled eukaryote without cell walls in which kingdom will it likely be classified

Back 15

Protista

Front 16

Heliminths

Back 16

Parasitic worms

Front 17

Organisms called parasites are

Back 17

Always harmful to their host

Front 18

The surgeon who advocated using disinfectants on hands and in the air prior to surgery

Back 18

Joseph Lister

Front 19

Scientist that showed anthrax is caused by the bacterium Bacillus anthracis

Back 19

Robert Koch

Front 20

Select the correct descending taxonomic hierarchy

Back 20

Domain, kingdom, phylum, division, class, order, family, genus, species

Front 21

When assigning a scientific name to an organism

Back 21

Both genus and species are underlined or italicized and the genus is capitalized

Front 22

In Whitaker's system the protozoa and algae are classified in the Kingdom

Back 22

Protista

Front 23

Which of the following is the main decomposers of the Earth

Back 23

Bacteria and fungi

Front 24

The most common infectious cause of death worldwide

Back 24

HIV / AIDS

Front 25

Which of the following diseases is transmitted by mosquitoes

Back 25

Malaria, zika virus, dengue fever

Front 26

Which is not a characteristic of prokaryotes

Back 26

They have organelles

Front 27

The scientist that discovered heat resistant bacterial spores

Back 27

Ferdinand Cohn

Front 28

Anything that occupies space and has mass

Back 28

Matter

Front 29

Electrons of an atom are

Back 29

Negative, orbit the atom's nucleus, have no mass, involved in bonds

Front 30

The subatomic particles that surround the nucleus

Back 30

Electrons

Front 31

Isotopes are atoms of the same element that differ in their

Back 31

Neutrons

Front 32

The maximum number of electrons in second energy shell of an atom

Back 32

8 electrons

Front 33

Two or more atoms bonded together

Back 33

Molecule

Front 34

Reactions involving electron release

Back 34

Oxidation reaction

Front 35

When two or more atoms, ions, or molecules combine to form new and larger molecules

Back 35

Synthesis reaction (A + B》AB)

Front 36

A solvent associate with living organisms

Back 36

Water

Front 37

A solution of pH 7 compared to a solution of pH 9 is

Back 37

Acidic

Front 38

The building blocks of an enzyme are

Back 38

Amino acids

Front 39

Components of a nucleotide

Back 39

Nitrogen base, pentose sugar, phosphate group

Front 40

Pertains to DNA but not RNA

Back 40

Thymine and deoxyribose

Front 41

Pertains to RNA but not DNA

Back 41

Uracil and ribose

Front 42

The principal energy carrying molecule of all cells

Back 42

Adenosine triphosphate (ATP)

Front 43

Amino acid that contains sulfur atoms that form covalent disulfide bonds in the tertiary structure of proteins

Back 43

Cysteine

Front 44

The atomic number equals the number of

Back 44

Protons

Front 45

The neutral particle of an atom

Back 45

Neutrons

Front 46

A chemical reaction that has both synthesis and decomposition components

Back 46

Exchange reaction (AB + CD 》 AD + BC)

Front 47

Carbohydrates found in dairy products

Back 47

Lactose

Front 48

A chemical bond linking amino acids together

Back 48

Peptide bond

Front 49

Molecules that do not like water

Back 49

Hydrophobic

Front 50

Protein structure that contains both Alpha Helix and beta pleated sheets

Back 50

Secondary structure

Front 51

What are the five I's

Back 51

Inoculation, incubation, isolation, inspection, identification

Front 52

What is not a type of microbiological media

Back 52

Petri dish

Front 53

The purposeful addition to microorganisms into the laboratory nutrient medium

Back 53

Inoculation

Front 54

Essential for development of discrete isolated colonies

Back 54

Solid medium

Front 55

A pure culture contains

Back 55

One species of microorganism

Front 56

A microbiologist inoculates staphylococcus epidermidis and E coli into a culture medium. Following incubation only E coli grows in the culture. What is the most likely explanation?

Back 56

The culture medium is selective

Front 57

A method which often results in colonies developing down through the agar and some colonies on the surface

Back 57

Pour plate

Front 58

A common medium used for growing fastidious bacteria

Back 58

Blood agar

Front 59

A type of medium which is able to distinguish species or types of microorganisms based on the observable change in colonies or in the medium

Back 59

Differential medium

Front 60

Mannitol salt agar is selective for

Back 60

Staphylococcus

Front 61

A microbiologist must culture a patient's feces from intestinal pathogens. Which of the following would likely be present selective media for analyzing this fecal specimen?

Back 61

Bile salts

Front 62

The microscopes ability to show two separate entities as separate and distinct

Back 62

Resolving power

Front 63

Magnification of objective lens times magnification of ocular lens

Back 63

Total magnification

Front 64

The wavelength of light used plus the numerical aperture governs

Back 64

Resolution

Front 65

Microscope in which you would see brightly illuminated specimens against a black background

Back 65

Dark field microscopy

Front 66

Microscope that does not use light in forming the specimens image

Back 66

Electron microscopy

Front 67

Microscope that has the greatest resolution and highest magnification

Back 67

Electron microscopy

Front 68

Microscope that is most widely used to shows staines against a bright background

Back 68

Bright-field microscopy

Front 69

Specimen preparation that is best for viewing cell motility

Back 69

Hanging drop

Front 70

The primary purpose of staining cells on a microscope slide

Back 70

To add contrast in order to see them better

Front 71

Gram stain, acid fast stain, endospore stain are

Back 71

Differential stains; outcome based on cell wall differences

Front 72

A method of staining microorganisms with a single basic dye

Back 72

Simple stain

Front 73

Brain heart infusion, trypticase agar (TSA) and nutrient agar are all examples of which type of media

Back 73

Non-synthetic media

Front 74

Bacteria that require special growth factors and complex organic substances

Back 74

Fastidious

Front 75

A media designed to allow only staphylococci to grow. In addition to staphylococcus aureus colonies to have yellow halo around them and other staphylococci to appear white

Back 75

Selective/ differential media

Front 76

A media that is not used as food or metabolized by most microbes, melts at 100 Celsius and solidifies at 42 Celsius. A polysaccharide extract of algae

Back 76

Agar

Front 77

Media that can be used to determine if a bacteria is motile

Back 77

SIM media

Front 78

Media used for cultivating fungi

Back 78

Sabouraud's agar

Front 79

A chemical reaction in which bonds are broken to produce smaller parts from large molecules (AB 》 A +B)

Back 79

Decomposition reaction

Front 80

What is the mordant that reacts with crystal violet?

Back 80

Iodine

Front 81

Has the same Optical qualities as glass and thus prevents refractive loss of light as it passes from the slide to the objective lens

Back 81

Immersion oil

Front 82

Observing and characterizing colonial growth for size, shape, edge, elevation, color, odor, and texture is part of

Back 82

Morphology