Micro Final Test 2

Front 1

Using brief exposure to heat to reduce the number of pathogens and spoilage organisms in food and dairy products is known as

Back 1

pasteurization

Front 2

Which of the following pathogens survives boiling?

Back 2

bacterial endospores

prions

exotoxins

Front 3

Which of the following are physical methods for reducing germ numbers

Back 3

washing

filtering

irradiating

heating

Front 4

Bacteria do not grow well in syrup. Why

Back 4

due to the high sugar content of syrup

Front 5

Of the following chemicals, which are sterilants

Back 5

formaldehyde

Front 6

Enzymes

Back 6

are proteins

reduce activation energy for biochemical reactions

may be damanged and redered useless by exposure to high heat

may be altered by binding to the allosteric site

Front 7

What are the molecular components of ATP

Back 7

ribose

adenine

phosphate groups

Front 8

Which of the folowing is true of glycolysis?

Back 8

ALL ARE UNTRUE
glucose is converted to ribose
no ATP is formed
2 molecules of oxygen are consumed
it takes place in the mitochondrion

Front 9

How many ATP molecules are possible through anerobic fermentation?

Back 9

two

Front 10

Which of the following are products of the Kreb's Cycle?

Back 10

CO2

H2O

ATP

NADH

Front 11

NAD and FADH are reduced in glycolysis, the transition step, and the Kreb's Cycle. What this means is

Back 11

hydrogen electrons are added to them

Front 12

What is the terminal electron acceptor in aerobic respiration?

Back 12

oxygen

Front 13

The leading strand of DNA is arranged 3' TTAAGGC5'. The lagging strand would therefore be

Back 13

ALL ARE UNTRUE
complentary
antiparallel
replicated in Okazaki fragments
ararnged 5' AATTCCG3'

Front 14

Messenger RNA

Back 14

is translated by the ribosome in units of 3

Front 15

When the ribosome translates a codone, transfer RNA

Back 15

delivers the appropriate amino acid

Front 16

The term oxygenic phototroph

Back 16

would describe plants

Front 17

The term methanogen would suggest

Back 17

an archea

an anaerobe

a producer of methane

CO2 as terminal electron acceptor

Front 18

Which of the following bacteria are obligate anaerobes?

Back 18

Clostridium tetani

Front 19

A bacterium is described as an anaerobic chemoorganotroph. This would say

Back 19

ALL ARE WRONG
oxygen is terminal electron acceptor
it uses sunlight to synthesize ATP
it produces oxygen as a metabolic waste product
it uses hydrogen gas as a source of electrons

Front 20

Which of the following are aerobic chemoorganotrophs?

Back 20

Mycobacterium

Front 21

Which is a bacterium that uses the sun as an energy source and produces oxygen as a metabolic waste product?

Back 21

cyanobacteria

Front 22

A bacterium is grouped as a gram negative curved rod (vibrio). Which of the following fit that description?

Back 22

Campylobacter

Front 23

Which of the following is an OIP?

Back 23

Rickettsia

Chlamydia

Orientia

Coxiella

Front 24

Gram negative diplococcus would be a bacterial grouping that includes

Back 24

Neisseria gonorrheae

Front 25

Which of the following bacteria are terrestrial?

Back 25

Clostridium

Bacillus

Streptomyces

Rhizobia

Front 26

Gram positive rod would be a correct description of

Back 26

Bacillus subtilis

Front 27

Which of the following are aquatic bacteria?

Back 27

Caulobacter

Front 28

Fixing atmospheric nitrogen into ammonia or nitrates wouldbe a function of

Back 28

Azotobacter

Front 29

Acid fast bacteria include

Back 29

Mycobacterium intracellulare

Front 30

The bacterium that causes syphilis

Back 30

is a spirochete

moves by axial filament

is grouped with the bacterium that causes Lyme disease

has not been grown in the laboratory

Front 31

An archea is named Methanothermus. The name would suggest

Back 31

it produces methane

it grows in hot environments

Front 32

Where might the organism Halorubrum be found?

Back 32

in very salty environments

Front 33

Which of the following is/are characteristic of algae?

Back 33

chlorophylla

aquatic

marine

oxygenic

Front 34

Paralytic shellfish poisoning is associated with

Back 34

Gonyaulax

Front 35

Diatoms

Back 35

have silicon dioxide in their cell walls

are algae

may release domoic acid

are two bacteria joined together

Front 36

A red tide would suggest

Back 36

proliferation of Gynmodium brevis in the coastal water

high risk of algal toxins in the shellfish

Front 37

Which are characteristic of protozoa?

Back 37

unicellular

motile

Front 38

Diease causing, flagellated protozoans of the phylum Sarcomastigophora include

Back 38

Giardia lamblia

Front 39

What disease causing organism is vectored by the Tse Tse fly?

Back 39

Trypanosoma bruceii gambiense

Front 40

Disease causing protozoans of the phylum Apicomplexa include

Back 40

Toxoplasma gondii

Plasmodium ovale

Front 41

Which of the following is characteristic of fungi?

Back 41

terrestrial

non-motile

non-photosynthetic

sexual and asexual reproduction

Front 42

Sexual reproduction has not been observed in which fungal group?

Back 42

Deuteromycetes

Front 43

A funtal infection of human skin

Back 43

tinea pedis

diaper rash

dermatomycosis

candidiasis

Front 44

Which fungus may infect the dermis following a rose thorn puncture of the skin?

Back 44

Sporothrix schenckii

Front 45

Claviceps pupurea is known to produce which toxin?

Back 45

ergot

Front 46

A likely location for contracting histoplasmosis would be

Back 46

a chicken house

Front 47

The biological vector of Plasmodium falciparum is

Back 47

Anopheles mosquito

Front 48

A person contracts Lyme disease courtesy of

Back 48

Ixodes scapularis

Front 49

Which worm is the cause of elephantiasis?

Back 49

Wuchereria bancrofti

Front 50

A person may develop helminthiasis by way of

Back 50

eating and drinking

insect bites

direct skin penetration