Microbiolgy Exam 2 Clicker Question

25問 • 11ヶ月前

問題一覧

Without oxygen for the cell, pyruvate is used as an electron sink and it excreted from the cell in a process called _____

fermentation

Which of these food stuffs can be fermented into a different or enhanced version of the food? Select all that apply

Milk, Cucumbers , Eggs , Red Meat , Wheat flour , cabbage , barley , honey

What is the unusual fate of fermentation end products that are made in the cell?

They are excreted out of the cell

Why don’t eukaryotic cells have simultaneous transcription and translation like bacteria

eukaryotes do transcription and translation in separate places in the cell

In bacteria mutation can have the consequences of (select all that apply)

most are lethal to the off-spring and they die , many harmful , some mutation are neutral , some are beneficial

HGT transformation-DNA transfer by

DNA pickup from the environment

After conjugation between F+ E.coli and F- E.coli cell what happens to the F- cell

F become F+ fuse to the transfer of the plasmid into the F- cell

HGT conjugation-DNA transfer by

Cell to cell contact

HGT Transduction- DNA transfer by

Bacterial virus (phage) transfer

What is in the G- periplasm? (select all that apply)

digestive enzymes , peptidoglycan , receptors

Inclusion/storage granules in bacteria-what can be stored?

gases , glycogen , lipids/oils , phosphate , magnetic iron

Aspects of Bacterial endospores (select all that apply)

survival of harsh conditions , created by sporulation , producing cell dies , spores can survive boiling water

Many more carbons enter the Krebs cycle than the # of Carbons given off as CO2- What happens to all the carbon that doesn’t become CO2?

Used to make more carbon building blocks and more cells

In bacteria “Horizontal Gene transfer” refers to

genes physically passed to an existing cell

Gram + cell walls matched (select all that apply)

NAM-NAG fibers , teichoic acids , peptide cross links

Gram - Cell wall matches (select all that apply)

Monolayer peptidoglycan NAM-NAG fibers , periplasm , peptide crosslinks , o-polysaccharide , outer membrane , lipid A

Chemotaxis; (Select all that apply)

CCW flagella spin = run , runs = towards attractants , basal body is the anchor

Outer membrane (G-) components (select all that apply)

o-polysaccharide , endotoxin, porins/pores , lipid A

Bacterial cell DNA (all that apply)

Ciruclar molecule of double standard DNA , Refereed to as the genome , usually only has one copy , has no his tone proteins

Electron cannot exist free in the cell. How are they handled during metabolism? (Select all that apply)

carried by co-enzyme such as NAD+ and FAD , Passed onto cytochromes during electron transport , passed onto oxygen ad the final e- acceptor

Chemoisomosis in the cell (select all that apply)

Pumps H+ out of the cell , makes ATP from the H+ gradient , oxidizes NADH back to NAD+ so it can pick up more electrons

How does Chemisomosis create ATP? (Select all that apply)

electron movement creates H+ gradient outside of the cell , H+ enters cell at ATPase in the membrane, ATP made from ADP

What is the fate of the donor cell in Transformation?

the donor cell dies it Lyses

What is the fate of the donor cell in Conjugation?

the donor cell lives, its plasmid is copied

What is the fate of the donor cell in Transduction

the donor cell dies (from virus infection) and it is lysed by the virus

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問題一覧

Without oxygen for the cell, pyruvate is used as an electron sink and it excreted from the cell in a process called _____

fermentation

Which of these food stuffs can be fermented into a different or enhanced version of the food? Select all that apply

Milk, Cucumbers , Eggs , Red Meat , Wheat flour , cabbage , barley , honey

What is the unusual fate of fermentation end products that are made in the cell?

They are excreted out of the cell

Why don’t eukaryotic cells have simultaneous transcription and translation like bacteria

eukaryotes do transcription and translation in separate places in the cell

In bacteria mutation can have the consequences of (select all that apply)

most are lethal to the off-spring and they die , many harmful , some mutation are neutral , some are beneficial

HGT transformation-DNA transfer by

DNA pickup from the environment

After conjugation between F+ E.coli and F- E.coli cell what happens to the F- cell

F become F+ fuse to the transfer of the plasmid into the F- cell

HGT conjugation-DNA transfer by

Cell to cell contact

HGT Transduction- DNA transfer by

Bacterial virus (phage) transfer

What is in the G- periplasm? (select all that apply)

digestive enzymes , peptidoglycan , receptors

Inclusion/storage granules in bacteria-what can be stored?

gases , glycogen , lipids/oils , phosphate , magnetic iron

Aspects of Bacterial endospores (select all that apply)

survival of harsh conditions , created by sporulation , producing cell dies , spores can survive boiling water

Many more carbons enter the Krebs cycle than the # of Carbons given off as CO2- What happens to all the carbon that doesn’t become CO2?

Used to make more carbon building blocks and more cells

In bacteria “Horizontal Gene transfer” refers to

genes physically passed to an existing cell

Gram + cell walls matched (select all that apply)

NAM-NAG fibers , teichoic acids , peptide cross links

Gram - Cell wall matches (select all that apply)

Monolayer peptidoglycan NAM-NAG fibers , periplasm , peptide crosslinks , o-polysaccharide , outer membrane , lipid A

Chemotaxis; (Select all that apply)

CCW flagella spin = run , runs = towards attractants , basal body is the anchor

Outer membrane (G-) components (select all that apply)

o-polysaccharide , endotoxin, porins/pores , lipid A

Bacterial cell DNA (all that apply)

Ciruclar molecule of double standard DNA , Refereed to as the genome , usually only has one copy , has no his tone proteins

Electron cannot exist free in the cell. How are they handled during metabolism? (Select all that apply)

carried by co-enzyme such as NAD+ and FAD , Passed onto cytochromes during electron transport , passed onto oxygen ad the final e- acceptor

Chemoisomosis in the cell (select all that apply)

Pumps H+ out of the cell , makes ATP from the H+ gradient , oxidizes NADH back to NAD+ so it can pick up more electrons

How does Chemisomosis create ATP? (Select all that apply)

electron movement creates H+ gradient outside of the cell , H+ enters cell at ATPase in the membrane, ATP made from ADP

What is the fate of the donor cell in Transformation?

the donor cell dies it Lyses

What is the fate of the donor cell in Conjugation?

the donor cell lives, its plasmid is copied

What is the fate of the donor cell in Transduction

the donor cell dies (from virus infection) and it is lysed by the virus