Exam 1

Question 1

Bacterial cells could have any of these following appendages EXCEPT: Flagella, Cilia, Fimbriae, Pili

Answer 1

Cilia

Question 2

Spirochetes have a twisting and flexing locomotion due to appendages called:

Answer 2

Periplasmic Flagella ( axial filament)

Question 3

The short, numerous appendages used by some bacterial cells for adhering to cell surfaces are called:

Answer 3

Fimbriae

Question 4

The transfer of genes during bacterial conjugation involves rigid, tubular appendages called:

Answer 4

Sex pili

Question 5

All bacterial cells have:

Answer 5

a chromosome

Question 6

The term that refers to the presence of flagella all over the cell surface is:

Answer 6

peritrichous

Question 7

The important indicator of evolutionary related is to determine:

Answer 7

Nitrogen base squence of rRNA

Question 8

The presence of thylakoids, phycocyanin, gas inclusions and cysts would be associated with:

Answer 8

cyanobacteria

Question 9

T/F:

Archaea do not have the typical peptidoglycan structure found in bacteria cell walls:

Answer 9

false

Question 10

T/F:

Bacteria in the genus Mycoplasma and bacteria called L-forms lack cell walls:

Answer 10

True

Question 11

T/F:

Gram negative bacteria do not have peptidoglycan in their cell walls:

Answer 11

False

Question 12

The function of bacterial endospores is:

Answer 12

Protection of genetic material during harsh conditions

Question 13

Chemical analysis of a bacterial cell structure detects calcium dipicolinic acid. What is the identity of this structure?

Answer 13

Endospore

Question 14

Endospores are:

Answer 14

all of the above

Question 15

Which term is not used to describe bacterial cell shapes:

Answer 15

tetrad

Question 16

Serological analysis for bacterial identification typically involves using:

Answer 16

specific antibodies to the bacterial cell antigens

Question 17

The periplasmic space is

Answer 17

An important reaction site for substances entering and leaving the cell

Question 18

Which of the following, pertaining to prokaryotic cell membranes is mismatched:

Answer 18

glycocalyx - regulates transport of nutrients and waste

Question 19

he site for most ATP synthesis is prokaryotic cells is the:

Answer 19

cell membrane

Question 20

The bacterial chromosome

Answer 20

is part of the nucleoid

Question 21

which is mismatched

Answer 21

plasmids - genes essential for growth and metabolism

Question 22

Magnetosomes are:

Answer 22

composed of magnetic iron oxide particles

Question 23

All of the following structures contribute to the ability of pathogenic bacteria to call disease except:

Answer 23

inclusions

Question 24

A prokaryotic cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is:

Answer 24

gram positive

Question 25

A bacterial genus that has a way mycolic acid in the cell walls is :

Answer 25

mycobacterium

Question 26

All of the following pertains to endotoxin except:

Answer 26

found in acid fast bacterial cell walls

Question 27

The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical gram positive bacterial cell structure is:

Answer 27

predominance of unique, waxy, lipids.

Question 28

Lipopolysaccharide is an important cell wall component of:

Answer 28

gram negative bacteria

Question 29

the outcome of the Gram stain is based on differences in the cell's:

Answer 29

Cell wall

Question 30

The most immediate result of destruction of a cell's ribosomes would be:

Answer 30

protein synthesis would stop

Question 31

A bacterial cell exhibiting chemotaxis probably has:

Answer 31

flagella

Question 32

Which structure protects bacteria from being phagocytized:

Answer 32

Capsule

Question 33

If bacteria living in salty seawater were displaced to a freshwater environment, the cell structure that would prevent the cell from rupturing is:

Answer 33

the cell wall

Question 34

T/F: | Hot carbol fusion is the primary dye in the acid fast stain:

Answer 34

True

Question 35

T/F: | The region between the bacterial cell membrane and the cell wall is called the outer membrane

Answer 35

True

Question 36

T/F: | The prokaryotic cell membrane is a site for many enzymes and metabolic reactions:

Answer 36

True

Question 37

T/F: If during the gram stain procedure, the bacterial cells were viewed immediately after crystal violet was applied, gram positive cells would be purple but gram negative cells would be colorless:

Answer 37

False

Question 38

T/F: | Endospores of certain bacterial species can enter tissue in the human body, germinate, and cause an infectious disease:

Answer 38

True

Question 39

T/F: | Iodine is the decolorizer in the Gram stain

Answer 39

False

Question 40

T/F: If you observed rod shaped, pink ells on a slide that had just been gram stained you can assume that their cell walls contain endotoxins:

Answer 40

False

Question 41

T/F: | The term diplococci refers to an irregular cluster of spherical bacterial:

Answer 41

False

Question 42

Protists include:

Answer 42

Algea and protozoa

Question 43

the eukaryotic cell organelle that most resembles a bacterial cell is the:

Answer 43

Mitochondria

Question 44

Eukaryotic flagella differ from prokaryotic flagella because only eukaryotic flagella

Answer 44

contain microtubules

Question 45

Cilia are found in certain:

Answer 45

protozoa

Question 46

Chitin is a chemical component of the cell walls of

Answer 46

Fungi

Question 47

Cell walls are not found on typical cells of:

Answer 47

protozoa

Question 48

The site for ribosomal RNA synthesis is the:

Answer 48

Nucleolus

Question 49

When a eukaryotic cell is not undergoing mitosis, the DNA and its associated proteins appear as a visible thread-like mass called the:

Answer 49

Chromatin

Question 50

Histones are:

Answer 50

Proteins associated with DNA in the nucleus

Question 51

The eukaryotic cell's glycocalyx is:

Answer 51

Mostly polysaccharide

Question 52

Which of the follow is found in eukaryotic cells but not prokaryotic cells:

Answer 52

ALL