Exam 1

Question 1

Transferring electrons between proteins in the mitochondrial membrane is a type of?

Answer 1

Redox reaction

Question 2

Pathogenic staphylococci can be differentiated by plating on blood agar plates. What allows you to tell them apart?

Answer 2

The extent of hemolysis

Question 3

What might a pathogen use to attach to host cells?

Answer 3

Pili or fimbriae

Question 4

Ocean viruses contribute to carbon cycling by … ocean bacteria and algae.

Answer 4

Lysing

Question 5

What can ‘fix’ carbon and increase biomass?

Answer 5

Corn field

Question 6

… phage genes code for proteins that take over host functions. … phage genes include structural components of the virus.

Answer 6

Early, late

Question 7

A community of bacteria which coordinate their activities to colonize a surface is called?

Answer 7

Biofilm

Question 8

Lactose intolerance in humans can be explained by the lack a … necessary to split a …

Answer 8

Enzyme, disaccharide

Question 9

Vaccination was invented by British doctor in 18th century London.

Answer 9

False

Question 10

A streak plate is used to isolate single colonies form a mixture of bacteria. The equivalent technique when working with viruses is called?

Answer 10

Plaque assay

Question 11

Living genetically modified humans walk the earth

Answer 11

True

Question 12

What is not a natural polymer?

Answer 12

Glucose

Question 13

Most bacteria from environmental samples can be cultured in the lab.

Answer 13

False

Question 14

Animal viruses are capable of Lysogeny

Answer 14

True

Question 15

All of life can be sorted into three domains. The best evidence for this comes from?

Answer 15

rRNA sequence analysis

Question 16

What is an emerging disease in our area?

Answer 16

No correct answer

Question 17

According to out present understanding, mitochondria and chloroplasts are of … origin.

Answer 17

Bacterial

Question 18

In bacteria and mitochondria, a concentration of protons builds on one side of a … . These protons can only travel through a channel in a protein called … which functions as a turbine to make …

Answer 18

Membrane, ATPase, ATP

Question 19

You have streaked single colonies a sample from a dead animal. The results show several different types of colonies. The result indicates … and … clearly indicate a cause of the animals death.

Answer 19

Mixed population, does not

Question 20

Small pox has killed hundreds of millions of people since there have been humans. Smallpox infections no longer occur on earth due to vaccination.

Answer 20

True, true

Question 21

Endoscope production is a bacterial response to rapid environmental change.

Answer 21

True

Question 22

Recent increases in whooping cough are due to?

Answer 22

Antivaxxers, changes in bacteria, weakened vaccine immunity

Question 23

Enveloped viruses code for their own envelope

Answer 23

False

Question 24

Gram negative bacteria have an outer membrane, a portion of which is toxic to humans and causes fever. This molecule is made of?

Answer 24

Sugar and lipid

Question 25

ATP synthase runs backwards and will consume ATP.

Answer 25

True

Question 26

Magnetosomes are … structures used by some bacteria to …

Answer 26

Iron, escape oxygen

Question 27

The Calvin cycle is the process which plants use to … and …

Answer 27

Fix CO2, build biomass

Question 28

Suppose you treat an exponentially growing culture of bacteria with a potential anti microbial compound. Over the next few hours cell doubling stops but the cells remain metabolically active. This antimicrobial compound is?

Answer 28

Bacteriostatic

Question 29

Minimum inhibitory concentration refers to the minimum …

Answer 29

Amount of a chemical required to kill all microorganisms

Question 30

Electrons captured form the breaking of glucose in the cytoplasm of eukaryotic cells are carried to the … by …

Answer 30

Mitochondria, NADH

Question 31

Persistent HPV infection requires viral integration in superficial/surface epithelial layers

Answer 31

False

Question 32

Where in liquid culture would you find an anaerobic bacterium

Answer 32

At the bottom of the tube

Question 33

Hydrothermal vent tube worms contain … bacterial, which in turn obtain … from the worms blood stream

Answer 33

Chemolithotrophic, oxygen

Question 34

You were doing a gram staining and forgot to counter stain with safranin. This would prevent you from identifying a gram positive bacteria.

Answer 34

False

Question 35

One reason there are far fewer antiviral drugs is …

Answer 35

Viruses use host processes to multiply

Question 36

Cellular respiration requires … which is used to collect/neutralize … in mitochondria

Answer 36

Oxygen, electrons

Question 37

Human pathogenic bacteria are …

Answer 37

Mesophiles

Question 38

Pasteurization is now a common procedure to ensure food safety. Pasteurs flasks disproved …

Answer 38

Bad air causes disease

Question 39

These microorganisms use inorganic compounds like hydrogen sulfide as their energy source

Answer 39

Chemolithotrophs

Question 40

This protein is made by bacteriophage and humans

Answer 40

Lysosome

Question 41

Lysogenic bacteria exposed to UV will?

Answer 41

Accumulate DNA damage, accumulate maturing bacteriophage, die

Question 42

Glycolysis is a series of … leading to … molecules

Answer 42

Enzymatic reactions, three carbon

Question 43

Tamiflu prevents influenza virus from binding to host cells

Answer 43

False

Question 44

These microorganisms use light as their energy source

Answer 44

Phototrophs

Question 45

The terms run and tumble are used to describe?

Answer 45

Movement of bacteria

Question 46

Water is a waste product of cellular respiration.

Answer 46

True

Question 47

Robert Koch is best known for a set of rules he created, now commonly referred to as Koch’s postulates. What is the purpose?

Answer 47

They help to determine is a particular infectious agent causes a specific disease

Question 48

Three options by which an organism may obtain energy are: light, organic molecules and …

Answer 48

Inorganic molecules

Question 49

Sugars are used by living systems for …

Answer 49

Energy storage and building materials

Question 50

Enveloped viruses contain genes for their own plasma membrane.

Answer 50

False