Quizlet

Question 1

This discipline includes fundamental research on the biochemistry, physiology, cell biology, ecology, evolution and clinical aspects of microorganisms, including the host response to these agents.

Answer 1

Microbiology

Question 2

A microscopic organism, which may be single-celled or multicellular.

Answer 2

Microorganism or microbe

Question 3

It is actually a convex lens of small focal length, which is used for seeing the magnified images of small objects.

Answer 3

Simple microscopes

Question 4

Used to observe the morphology of organism such as bacteria ,protozoa, fungi, and algae in living (unstained) and nonliving (stained ) state.

Answer 4

Brightfield

Question 5

Used to detect microorganism in cells ,tissues and clinical specimens

Answer 5

Fluorescence

Question 6

These ultra-thin sections for electron microscopy are cut on an ultramicrotome with a glass or diamond knife. Glass knives can easily be made in the laboratory and are much cheaper than diamond, but they blunt very quickly and therefore need replacing frequently.

Answer 6

Sectioning

Question 7

a general term used to describe the process of preserving a sample at a moment in time and to prevent further deterioration so that it appears as close as possible to what it would be like in the living state, although it is now dead.

Answer 7

Fixation

Question 8

Microorganism that prefer warmer temperature, but can tolerate or endure very cold temperature and can be preserved in the frozen state.

Answer 8

PSYCHRODURIC ORGANISMS

Question 9

The movement of solvent through a permeable membrane, from a solution having a lower concentration of solute to a solution having a higher concentration of solute.

Answer 9

Osmosis

Question 10

Are organisms that require sufficient amount of oxygen for growth anfld multiplication

Answer 10

Obligate aerobes

Question 11

a type of light microscope that uses a compound lens system, meaning, it operates through two sets of lenses to magnify the image of a specimen.

Answer 11

Compound light microscope

Question 12

a general purpose, nutrient medium used for the cultivation of microbes supporting growth of a wide range of non-fastidious organisms.

Answer 12

Nutrient agar

Question 13

Is the formulation made after modification which contains an increased level of vancomycin for greater inhibition of gram-positive organisms.

Answer 13

Martin-Lewis Agar

Question 14

A drug or chemical that inhibits growth and reproduction of microorganism

Answer 14

MICROBISTATIC AGENTS

Question 15

The use of chemical agent to inhibit the growth of pathogens either temporarily or permanently.

Answer 15

Disinfectant

Question 16

Catabolization of red blood cells

Answer 16

Hemolysis

Question 17

a scientific discipline that deals with the application of microorganisms and the knowledge about them.

Answer 17

Applied microbiology

Question 18

length of a typical humanspermatozoon’s head

Answer 18

5μm –

Question 19

The hole in the middle of the stage that allows light from the illuminator to reach the specimen.

Answer 19

Aperture

Question 20

an ultra-thin coating of electrically-conducting material, deposited by low vacuum coating of the sample.

Answer 20

Sputter coating

Question 21

a device that allows the rotation of an object about a single axis, where an outward force is applied perpendicularly to the axis.

Answer 21

Centrifuge

Question 22

used to estimate the density of a liquid culture by counting the number of CFU (colony forming units) on an agar or culture plates.

Answer 22

Colony counter

Question 23

thin metal device with a handle at one end and a looped wire at the other end

Answer 23

Wire inoculating loop

Question 24

Process that combines dehydration and freezing

Answer 24

LYOPHILIZATION

Question 25

Refers to the presence of pathogens in blood or tissues

Answer 25

Sepsis

Question 26

The following are examples of a Pond water protozoa except: Chlamydomonas, Euglena, Vorticella, Paramecium, Bacci, Volvox, Stentor

Answer 26

Bacci

Question 27

Useful for examining thin spirochetes

Answer 27

Darkfield

Question 28

produces images by detecting secondary electrons which are emitted from the surface due to excitation by the primary electron beam.

Answer 28

Scanning Electron Microscope (SEM)

Question 29

 A rotating turret that houses the objective lenses. The viewer spins the nosepiece to select different objective lenses.

Answer 29

Nosepiece

Question 30

Bacteria that partially destroys red blood cells are known as

Answer 30

Alpha hemolytic

Question 31

These are Non hemolytic, colorless, moist colonies with a characteristic “mousy” odour.

Answer 31

Haemophilus influenzae

Question 32

________ Also known as broth which are Contained in tubes and are often referred to as "tubed media."

Answer 32

Liquid media

Question 33

Used to express the sizes of microorganism

Answer 33

Metric system

Question 34

Yeasts, Septate hyphae (hyphae with cross-walls), septate hyphae (hyphae without cross-walls) are all examples of what kind of microorganism?

Answer 34

Fungi

Question 35

A limit to what can be seen using optical instrument

Answer 35

RESOLVING POWER OR RESOLUTION

Question 36

Specifically inhibits the metabolism and reproduction of bacteria.

Answer 36

BACTERIOSTATIC AGENT

Question 37

used as a solidifying agent ,much like gelatin is used as a solidifying agent in the kitchen.

Answer 37

Complex polysaccharide

Question 38

The length of time necessary to sterilize a pure culture at a specified temperature are known as ________

Answer 38

THERMAL Death Time (TDT)

Question 39

This reduces the number of organism on a surface, it does not penetrates pores and hair follicles to destroy microorganism residing there. It was also applied to the site of surgical incision to destroy local microorganism.

Answer 39

Antiseptic

Question 40

This is among the uses of a chocolate agar where it permits the differentiation of organism that grow in the medium

Answer 40

Differential medium

Question 41

This is a very popular liquid medium for use in the bacteriology laboratory as it supports the growth of all categories of bacteria from obligate aerobes to obligate anaerobes

Answer 41

Thioglycollate Broth (THIO)

Question 42

a chamber that contains appropriate atmosphere and moisture level and set to maintain the appropriate temperature

Answer 42

Incubator

Question 43

This is done to determine the degree of bacterial contamination in drinking water, milk, and other foods

Answer 43

BACTERIAL POPULATION COUNTS

Question 44

THE FIRST PHASE OF THE GROWTH, DURING WHICH the bacteria absorb nutrients, synthesize enzymes and prepare for cell division.

Answer 44

Lag phase

Question 45

The following are FACTORS THAT INFLUENCE THE GROWTH OF MICROORGANISM IN THE BODY, IN THE NATURE, OR IN LABORATORY EXCEPT: 1. TEMPERATURE 2. pH 3. WEATHER 4. Moisture content 5. available nutrients 6. Characteristic of other organism present

Answer 45

Weather

Question 46

Bacteria that completely destroys red blood cells arw known as _____

Answer 46

Beta hemolytic

Question 47

It is a selective medium used to cultivate Gram positive organisms.

Answer 47

Phenylethyl alcohol agar (PEA)Phenylethyl alcohol agar (PEA)

Question 48

Refers to a general purpose, liquid medium that allows the growth of fastidious organisms

Answer 48

Nutrient broth

Question 49

It is a liquid medium that involves adding a portion of the specimen to the medium

Answer 49

Inoculation

Question 50

Microbes that actually prefer salty environment

Answer 50

Halophylic