MID TERM

Question 1

What is it called when a bacteria has one flagella?

Answer 1

Monotrichous

Question 2

What is it called when a bacteria has flagella at both ends?

Answer 2

amphitrichous

Question 3

What is it called when a bacteria has many lagella at one portion?

Answer 3

Lophotrichous

Question 4

What is it called when a bacteria has flagella all over?

Answer 4

Petritrichous

Question 5

Name 4 Flagella organisms

Answer 5

1. E. Coli
2. P. Putida
3. P. Marabilis
4. Staphylococcus epidermidis

Question 6

Do cocci have flagella?

Answer 6

No

Question 7

Why is a motility test used?

Answer 7

To determine if a bacterium is motile

Question 8

What indicates a non-motile organism?

Answer 8

it will usually form a single straight line without spreading into the surrounding area.

Question 9

What indicates a motile organism?

Answer 9

It will grow and spread throughout the tube

Question 10

What three things does streptomyces play a role in degrading?

Answer 10

1. Starch
2. Lignocellulose
3. Chitin

Question 11

Where are streptomyces usually found?

Answer 11

soil

Question 12

Given an example of Streptomyces species and are they gram positive or negative?

Answer 12

Streptomyces Griseus, Gram Positive

Question 13

What shape does Streptomyces Gresius resemble?

Answer 13

Filamentous Fungi

Question 14

A single long thing filament on the Mycelium is called a?

Answer 14

Hypha

Question 15

How are hyphae developed?

Answer 15

Usually when a conidia spore lands on a suitable substrate and it then germinates and develops into hyphae

Question 16

What Environmental factors are important for bacteria?

Answer 16

1. pH levels
2. Temperature
3. Oxygen
4. Light Source

Question 17

Bacteria that cannot survive without oxygen are called?

Answer 17

Obligate Aerobes

Question 18

Bacteria that can survive without oxygen are called?

Answer 18

Obligate Anaerobes

Question 19

Bacteria that can survive with or without oxygen are called?

Answer 19

faculatative anaerobes

Question 20

In the absence of oxygen Faculatative anaerobes they utilize either ______ for energy production.

Answer 20

fermentation or anaerobic respiration

Question 21

What anerobes utilize anaerobic respiration but are not harmed by oxygen

Answer 21

Aerotolerant anerobes

Question 22

________ bacteria require oxygen but only grow where oxygen concentration levels are low, give an example

Answer 22

Microaerophilic Bacteria
Ex) Campylobacter Jejuni

Question 23

Bacteria that thrive in environments less than 5 are called?

Answer 23

Acidophiles

Question 24

Where are acidophile bacteria usually found in the human body?

Answer 24

vagina

Question 25

Bacteria that thrive in environments where the pH is 7 are called

Answer 25

Neutrophiles

Question 26

Where would neutrophile bacteria be found in the human body and give an example?

Answer 26

Stomach, Heliobacter Pylori

Question 27

Bacteria that thrive in environments where the pH is between 8-10 are called

Answer 27

Alkaliphiles

Question 28

Bacteria that thrive in cooler temperature environments such as 39-77 Degrees are called?

Answer 28

Psycrophiles

Question 29

Bacteria that thrive in neutral temperature environments such as 68-113 Degrees are called?

Answer 29

Mesophiles

Question 30

Bacteria that thrive in hot temperature environments such as 122-176 Degrees are called?

Answer 30

Thermophiles

Question 31

What is the bacterial growth curve

Answer 31

The bacterial growth curve represents the number of live cells in a bacterial population over time

Question 32

What are the four phases included in a bacterial growth curve?

Answer 32

1. Lag
2. Log (Exponential)
3. Stationary
4. Death