Growth requirement And nutrition

Question 1

Example of macronutrients

Answer 1

Proteins

Carbohydrates

Question 2

Required in small amounts

Involved in enzyme function & maintenance of protein structures

Answer 2

Micronutrients

Question 3

Examples of micronutrients

Answer 3

Manganese
Zinc
Nickel

Question 4

Basic elements

Answer 4

CHON

Question 5

Certain strains of bacteria need small amounts of

Answer 5

Phosphorus

Sulfur

Question 6

Microbes can acquire nutrients in various ways

Answer 6

Based on carbon and energy source

Question 7

Autotrophs

Answer 7

Photo Autotrophs

Chemo autotrophs

Question 8

Carbon source - co2

Energy source - non living environment

Answer 8

Autotrophs

Question 9

Have chlorophyll
Use light and co2
Oxygen is byproduct

Answer 9

Photo autotrophs

Question 10

Uses hydrogen & sulfur

Answer 10

Chemo autotrophs

Question 11

Carbon source - organic

Energy source - other organism/ sunlight

Answer 11

Heterotrophs

Question 12

Use organic compounds

Answer 12

Photoheterotrophs

Question 13

Most common

Aerobic and anaerobia

Answer 13

Chemoheterotrophs

Question 14

Influences of microbial growth

Answer 14

Cp-NOTE

Question 15

grows to the surface, where the oxygen is

Answer 15

Obligate aerobes

Question 16

Example of obligate aerobes

Answer 16

Pseudomonas

Question 17

Require small amount of oxygen

20% O2

Answer 17

Microaerophile

Question 18

Example of microaerophile

Answer 18

Treponemapallidum

Question 19

Grow well in the presence or absence of oxygen

Answer 19

Facultative aerobe

Question 20

Example pf facultative aerobe

Answer 20

Enterobacteriaceae

Question 21

Bottom dwellers

Not grow in the presence of oxygen

Answer 21

Obligate anaerobes

Question 22

Source of energy of obligate anaerobes

Answer 22

Fermentation

Anaerobic respiration

Question 23

Examples of obligate anaerobe

Answer 23

Clostridium
Bacterioides
Prevotella
Prophyromon

Question 24

Grow in the presence of air but do not use it for respiration or energy

Answer 24

Aerotolerant

Question 25

Example of aerotolerant

Answer 25

Strep pyogenes

Question 26

Toxic forms of oxygen

Answer 26

Monoxide
Superoxide
Peroxide
Hydroxyl/radical

Question 27

Temperature that may denature proteins

Cells may become fluid

Answer 27

Too high

Question 28

Temperature that makes membrane and cells rigid and fragile

Answer 28

Too low

Question 29

Heat loving organisms

Answer 29

Thermophiles

Question 30

Moderate temperature

Answer 30

Mesophiles

Question 31

Growth range of 10-50c or 20-40c

Our normal flora and pathogens

Answer 31

Mesophiles

Question 32

Organisms that can endure heat

Answer 32

Thermoduric

Question 33

Only these 2 produce spores

Answer 33

Clostridia

Bacillus

Question 34

Growth range of 0-15c

Answer 34

Psychrophiles

Question 35

Ideal pH for microbes

Answer 35

7-7.2

Question 36

pH 1-5

Answer 36

Acidophiles

Question 37

pH 5.5-8

Answer 37

Neutrophiles

Question 38

pH 8.5-11.5

Answer 38

Alkalophiles

Question 39

Live under extreme pressure

Answer 39

Barophiles

Question 40

Continuous changing of medium

Answer 40

Chemostat

Question 41

Autocount

Answer 41

Serial dilution method

Question 42

Most powerful number count

Answer 42

MPN

Question 43

Know how many bacteria you have

Answer 43

Cell counters

Question 44

Measure Metabolic activity, dry weight

Answer 44

Spectrophotometry

Question 45

Measure amount of DNA of present in a bacteria

Answer 45

Genetic methods

Question 46

Required in large amounts

Role in cell structure and metabolism

Answer 46

Macronutrients

Question 47

Example of photoautotrophs

Answer 47

Cyanobacteria

Question 48

Example of chemoautotroph

Answer 48

Methanogens

Question 49

Metabolizes the organic matter in dead organisms

Answer 49

Saprobe

Question 50

Example of saprobe

Answer 50

Fungi

Bacteria

Question 51

Utilizes tissue fluids of alive host

Answer 51

Parasite