Micro Ch 6

Front 1

Lipases breakdown

Back 1

Lipids

Front 2

The pentose phosphate pathway is

Back 2

And example of anabolism

Front 3

According to the animation, oxidative Phosphorylation is a

Back 3

Catabolic process

Front 4

According to the animation, the reactions that occur between glucose and pyruvic acid

Back 4

Can either be anabolic or catabolic

Front 5

Cyanobacteria are a type of

Back 5

Photoautotroph

Front 6

In green and purple bacteria, electrons to reduce to CO2 can come from

Back 6

H2S

Front 7

Which of the following has bacteriochlorophylls and uses alcohols for carbon?

Back 7

Photoheterotroph

Front 8

Which of the following types of organisms uses hydrogen sulfide for reducing power?

Back 8

Purple sulfur bacteria

Front 9

In which organism would you likely find a Chlorosome?

Back 9

Green sulfur bacteria

Front 10

Which of the following is a bacterium that performs oxygenic photosynthesis?

Back 10

Cyanobacteria

Front 11

What is the key difference between photoheterotrophs and photoautotrophs?

Back 11

Photoheterotrophs use organic compounds as their carbon source, photoautotrophs use carbon dioxide as their carbon source.

Front 12

Which of the following is a trait unique to photosynthetic eukaryotes?

Back 12

The presence of chloroplasts

Front 13

In the figure, which line best depicts an obligate anaerobe in the presence of O2?

Back 13

C

Front 14

The data in the table indicate that S. Aureus is

Back 14

A facultative halophile

Front 15

Which of the following pairs is mismatched

Back 15

Thermophile growth at 37*C

Front 16

Salts and sugars work to preserve foods by creating a

Back 16

Hypertonic environment

Front 17

In the figure, which line best depicts a facultative anaerobe in the absence of O2?

Back 17

B

Front 18

If cells are grown in media containing amino acids labeled with radioactive nitrogen, most of radioactivity will be found in the cells

Back 18

DNA and proteins

Front 19

Most fungi grow best at a ph of

Back 19

5

Front 20

Which group of microorganism sis most likely to spoil a freshwater trout preserved with salt?

Back 20

Facultative halophiles

Front 21

In the figure, which tube shows the expected growth pattern for a facultative anaerobe?

Back 21

B

Front 22

The term aerotolerant anaerobe refers to an organism

Back 22

That does not need oxygen but tolerates it.

Front 23

In the figure, which tube shows the expected growth pattern for a microaerophile

Back 23

E

Front 24

In the figure, which line shows the growth of an obligate aerobe incubated anaerobically?

Back 24

C

Front 25

Most pathogenic bacteria are thermophiles? T/F

Back 25

False

Front 26

Most bacteria grow best at ph

Back 26

7

Front 27

In one hospital, Pseudomonas aeruginosa contaminated patients. What was the source of the infections?

Back 27

A biofilm in the reprocessor

Front 28

Patients with indwelling catheters are susceptible to infections

Back 28

Bc biofilms develop on catheters

Front 29

The biosafety level (BSL) for most introductory microbiology laboratories is

Back 29

BSL-1

Front 30

Assume you inoculated 100 cells into 100ml of nutrient broth. You then inoculated 100 cells of the same species into 200 ml of nutrient broth. After incubation for 4 hours...

Back 30

You should have the same number of cells in both.

Front 31

A culture medium consisting of agar, peptone, and beef heart is

Back 31

A complex medium

Front 32

Agar is used as a solidifying agent in microbiological media since few bacteria can degrade it. T/F

Back 32

True

Front 33

Agar is used as a solidifying agent in microbiological media since few bacteria can degrade it. T/F

Back 33

True

Front 34

An experiment began with 4 cells and ended with 128 cells. How many generations did the cells go through?

Back 34

5

Front 35

Which of the following is the best definition of generation time?

Back 35

The length of time needed for a cell to divide.

Front 36

Which of the following is the best definition of generation time?

Back 36

The length of time needed for a cell to divide.

Front 37

Three cells with generation times of 60 minutes are inoculated into a culture medium. How many cells are there after 5 hours?

Back 37

96

Front 38

During which growth phase will gram-positive bacteria be most susceptible to penicillin?

Back 38

Log phase

Front 39

What results when a single bacterium reproduces?

Back 39

Two genetically identical daughter cells.

Front 40

If you begin with six cells, how many cells would you have after three rounds of division?

Back 40

Forty-eight cells

Front 41

Which of the following is not a step in bacterial cell division?

Back 41

Disappearance of nuclear envelope

Front 42

Which step of binary fission is the reason for genetically identical daughter cells?

Back 42

Replication of the bacterial chromosome

Front 43

Which step of binary fission is the reason for genetically identical daughter cells?

Back 43

Replication of the bacterial chromosome

Front 44

What enables the copied chromosome to separate during binary fission?

Back 44

The chromosomes are attached to different parts of cell membrane, which elongates and thus separates the chromosomes.

Front 45

How long does it take for the daughter cells from one round of replication to replicate themselves?

Back 45

No time is required. They are ready to divide immediately after DNA replication and separation of the daughter cells is complete if conditions are right.

Front 46

Put the following steps of bacterial replication in the correct order

Back 46

3,1,2,4

Front 47

What would happen if the septum did not form during binary fission?

Back 47

The parent cell would now have two copies of the chromosomes.

Front 48

Starting with three cells, how many cells would result from three rounds of replication?

Back 48

24

Front 49

Bacterial growth refers to an increase in the number of cells in a bacterial culture. T/F

Back 49

True

Front 50

Most bacteria reproduce by

Back 50

Binary fission

Front 51

Which of the following statements regarding infections involving biofilms is FALSE?

Back 51

There is no way to prevent biofilms from developing on surfaces.

Front 52

Microbes have very narrow optimum temperature ranges. Which of the following classifications of microbes are most likely to cause human disease, based on temp requirements ?

Back 52

Mesophiles

Front 53

Which level of biosafety is appropriate for handling organisms that present a moderate risk of infection?

Back 53

BSL-2

Front 54

Bacteria that can grow in the presence or absence of oxygen are called

Back 54

Facultative anaerobes