Exam #2

Question 0

match function to appropriate suture:

movement

Answer 0

flagellum

Question 1

match function to appropriate structure:

attachment

Answer 1

fimbriae

Question 2

T or F: spirochete move by whip-like flagella

Answer 2

false

Question 3

syphillis is caused by a spirochete called

Answer 3

treponema pallidum

Question 4

glycocalyx is made of

Answer 4

carbohydrate

Question 5

Endotoxin is a chemic which is toxic for humans. The chemical is:

Answer 5

Lipopolysaccharide & LPS

Question 6

Bacterial cells are resistant to hypotonic conditions because they:

Answer 6

Contain a cell wall composed of peptidoglycan

Question 7

Which of the following are true about archaebacteria:

Answer 7

They include microbes that live in hot acidic environments.
They include microbes that reduce carbon to methane gas.
They include microbes that live in extremely salty environments.

Question 8

Halo phones grow in conditions of high:

Answer 8

Salt

Question 9

Bacterial spores are resistant to:

Answer 9

Boiling & Freezing

Question 10

How long does it take for a spore to germinate into a bacterial cell?

Answer 10

1 1/2 hours

Question 11

Which of the following prokaryote suture act as virulence factors?

Answer 11

Fimbrae & Glycocalyx

Question 12

The genus Mycobacteria has the following characteristic:

Answer 12

Contains mycolic acid in its cell wall

Question 13

T or F: The antibiotics which target the 70 S ribosome can damage human cells

Answer 13

True

Question 14

T or F: Some inclusions found in bacterial cells store glucose in the form of glycogen

Answer 14

True

Question 15

T of F: The antibiotics which target the 70S ribosome can damage human cells

Answer 15

True

Question 16

T or F: some inclusions found in bacteria cells store glucose in the form of glycogen

Answer 16

True

Question 17

Lichen may be a symbiotic relationship between a Cyanobacteria and

Answer 17

Fungi

Question 18

This organism is considered an obligate intracellular bacterium

Answer 18

Rickettsias

Question 19

This organism will infect endothelial cells of small blood vessel & causes Rocky Mountain Spotted fever

Answer 19

Rickettsia

Question 20

Portion ‘b’ has the following characteristics

Answer 20

Does not interact with water molecules, hydrophobic

Question 21

If a chemical substance can interact with water, it is called

Answer 21

Hydrophilic

Question 22

Which of the following mechanisms are used by prokaryotes to transport substances across the cell membrane

Answer 22

Active transport
Facilitated diffusion
Simple diffusion

Question 23

Plasma membranes are not a good target for antimicrobials because

Answer 23

Bacterial plasma membranes are too much like human plasma membranes; hence, human plasma membranes would be damaged during treatment

Question 24

The number of nucleotide base pairs which make up a typical bacterial chromosome is

Answer 24

4 million

Question 25

T or F: Some fungi exist in a yeast form. Some fungi exist in a mild form. Some fungi can switch from yeast to mold and back again.

Answer 25

True

Question 26

T of F: fungi are great recyclers. Every naturally occurring organic material on the earth can be attacked by some type of fungi

Answer 26

True

Question 27

Symbiotic relationship between fungi & algae

Answer 27

Lichen

Question 28

Symbiotic relationship between fungi & plant roots

Answer 28

Mycorrhizae

Question 29

Regarding nutritional needs, algae are classified as

Answer 29

Photoautotrophs

Question 30

"Sick building syndrome" is caused by a

Answer 30

Fungi

Question 31

A protozoan is a heterotroph. This means that these organisms live off of organic matter

Answer 31

True

Question 32

Garda lambkins causes ________. It belongs to the kingdom _____, the subkingdom called ______ & the subgroup called _______.

Answer 32

Gastrointestinal disease; Protista; protozoan; flagellate

Question 33

T or F: Fungi are responsible for damaging 40% of the fruit crops every year

Answer 33

True

Question 34

If a fungus can switch from yeast to mold, it is called

Answer 34

Dimorphic

Question 35

A chain of fungal cells is called a

Answer 35

Hypha

Question 36

T or F: Eutrophication is defined as the nutrient-enhancement of a body of water. This is primarily due to the run off of fertilizers and the dumping of sewage into water ways. The consequence is algal blooms.

Answer 36

True

Question 37

Giardiasis begins with the ________, which then forms a _________ which attaches via a suction cup to the intestinal wall.

Answer 37

Ingestion of a cyst; trophozoite

Question 38

Carrageenan is an emulsifying agent against used for making various food products as well as some sex lubricants. Carageenan is produced by

Answer 38

Red algae

Question 39

T or F: a trophozoite is a form of a protozoan which contains a tough, thick cuticle which allows survival under adverse conditions

Answer 39

False

Question 40

T or F: coral is a symbiotic between algae & a polyp

Answer 40

True