Microbiology review test one

Which of the following domains of life contain microorganism ?
Bacteria, archaea, and eukarya
Which of the following is a proper scientific name?
Pseudomonas aeruginosa
Teichoic acids are responsible for the negative charge in gram negative bacteria?
False
Which of the following are prokaryotes?
Bacteria
The vast majority of bacteria cause disease?
False
To which domain do viruses belong?
None of the above
A genus or species that maintains a single shape is said to be....
Whereas one the exists as multiple shapes is referred to as......?
Monomorphic, pleomorphic
"sarcinae" refers to what shape and/or arrangement?
A cube of 8 cocci
"streptococci" refers to what shape and/or arrangement?
Chains of cocci
What equation represents a basic enzymatic reaction?
E + S -> ES -> E+ P
When the motile bacterium, Homerichia simpsonii, detects it's favorite food, the open faced club sandwich, how does it get to it?
Longer runs in the direction of the open faced club sandwich
The open faced club sandwich in the above question would be considered what?
An attractant
Which of the following is not a component of bacterial flagella?
Microtubule
.....are characterized by a monolayer membrane or protein coating surrounding stored materials, whereas ....... Are characterized as precipitated materials that are not surrounded by a membrane of any sort?
Inclusion bodies, storage granules
Which of the following is not true about sex pili?
They are for attachment to surfaces
Lipid A is also revered to as?
Endotoxin
Which of the following is true about endospores?
They resist dehydration and radiation
The term "bacillus" is synonymous with what?
Rod
The cytoplasmic membrane is made up of phospholipids with ... Tails and ... Heads, and acts as a ... Barrier against the movement of molecules?
Hydrophobic, hydrophilic, selective
As a general rule, transport proteins in the cytoplasmic membrane?
Allow only select molecules into and out of the cell
Teichoic acids are components of the ... Cell wall, while LPS is a component of the ... Cell wall?
Gram positive: gram negative
Porins differ from other transport proteins in that ?
They are not molecule specific, but rather "select" based on size
Small, lipid-soluble (hydrophobic) molecules would be expected to cross the cytoplasmic membrane by which of the following processes?
Simple diffusion
A cell may allow a large or charged chemical to move across the cell membrane, down (along with) it's concentration gradient, in a process called?
Facilitated diffusion
The cell membrane of bacteria acts to ?
Selectively inhibit the movement of molecules into and out of the cell
Which of the following is found in the nucleoid?
Bacterial chromosome
Which of the following is not associated with a prokaryotic cell ?
Endoplasmic reticulum
The bacteria chromosome fills up the entire volume of the interior of the cell?
False
Oxidation reactions in microbial metabolism involves the?
Removal of electrons
Peptidoglycan is?
A complex polysaccharide (sugar)
An oxidation reaction is always coupled to a?
Reduction reaction
Energy is transformed into this in a catabolic reactions and used to fuel anabolic reactions?
ATP
Enzymes may lower activation energy by?
Positioning substrates in the correct orientation/position for a reaction to occur & putting pressure on bonds to be broken
The location where a(n) .... Binds to the enzyme is it's ....?
Substrate; active site
All of the following are true about reduction reactions except?
Protons are lost
All of the following are true about microbial metabolism except?
Catabolism is the same as biosynthesis
A form of active transport in which the molecule being transported is altered is called?
Group translocation
The cell wall of gram positive bacteria ?
Has 7-31 layers of peptidoglycan and teichoic acids
Which of the following is a reduced molecule?
NADH
Anabolism can be described as?
Forming larger molecules from smaller molecules
A genus or species that maintains a single shape is said to be.....whereas one that exsts as multiple shapes is referred to as...?
Monomorphic, pleomorphic
"Sarcinae" refers to what shape and/or arrangement?
A cube of 8 cocci
"streptococci"refers to what shape and/or arrangement?
Chains of cocci
Which equation represents a basic enzymatic reaction?
E+S-> ES-> E+ P
When the motile bacterium, Homerichia simpsonii, detects it's favorite food, the open faced club sandwich, how does it get to it?
Longer runs in the direction of the open faced sandwich
The open faced club sandwich in the above question would be considered what?
An attractant
Which of the following domains of life contain microorganisms?
Bacteria, archaea, and eukarya
Which of the following is a proper scientific name?
Psedomonas areruginosa
Teichoic acids are responsible for the negative charge in gram negative bacteria?
False
High concentrations of salt and sugar in the external environment tend to do what to a cell?
Draw water out of the cell, causing plasmolysis
Which of the following are prokaryotes?
Bacteria
The vast majority of bacteria cause disease?
False
To which domain do viruses belong?
None of the above
.... Are characterized by a monolayer membrane or protein coating surrounding stored materials, whereas .... Are characterized as precipitated materials that are not surrounded by a membrane of any sort?
Inclusion bodies, storage granules
Porins differ from other transport proteins in that ?
They are not molecule specific, but rather "select" based on size
Small, lipid- soluble ( hydrophobic) molecules would be expected to cross the cytoplasmic membrane by which of the following processes?
Simple diffusion
A cell may allow large or charged chemical to move Across the cell membrane, down (along with) it's concentration gradient, in a process called?
Facilitated diffusion
The cell membrane of bacteria acts to?
Selectively inhibit the movement of molecules into and out of the cell
Which of the following is found in the nucleoid?
Bacterial chromosome
Which of the following is not associated with a prokaryotic cell?
Endoplasmic reticulum
The bacteria chromosome fills up the entire volume of the interior of the cell?
False
Which of the following is true about endospores?
They resist dehydration and radiation
The term "bacillus" is synonymous with what?
Rod
Which of the following is mismatched?
None
(fimbriae-attachment, fimbriae -twitching motility, flagella-motility, glycocalyx-attachment)
which of the following are mismatched?
Endospores: mechanism of reproduction
The cytoplasmic membrane is made up of phospholipids with... Tails and ... Heads, and acts as a ... Barrier against the movement of molecules?
Hydrophobic, hydrophilic, selective
As a general rule, transport proteins in the cytoplasm plasmid membrane?
Allow only select , molecules into and out of the cell
Teichoic acids are the components of the.... Cell wall, while LPS is a component of the ... Cell wall?
Gram positive: gram negative
Oxidation reactions in microbial metabolism involve the ?
Removal of electrons
Peptidoglycan is?
A complex polysaccharide (sugar)
All of the following are true about sex pili except?
Sex pili are the same as flagella
The bacterial chromosome is found in the nucleus?
False
An oxidation reaction is always coupled to a ?
Reduction reaction
Energy is transformed into this in a catabolic reaction and used to fuel anabolic reactions?
ATP
Enzymes may lower activation energy by?
Positioning substrates in the correct orientation/ position for a reaction to occur & putting pressure on bonds to be broken
The location where a(n) ...binds to the enzyme is it's .?
substrate, activation site
All of the following are true about reduction reactions except?
Electrons are lost
All of the following are true about microbial metabolism except?
Catabolism is the same as biosynthesis
A form of active transport in which the molecule being transported is altered is called?
Group translocation
The cell wall of a gram positive bacteria.
Has 7-31 layers of peptidoglycan and teichoic acids
Which of the following is a reduced molecule?
NADH
Which of the following is not mismatched?
None
(nucleus:storage of bacterial chromosomes, endoplasmic reticulum: protein synthesis, mitochondria: site of photosynthesis, chloroplast : lipid synthesis, plasmid: eukaryotic chromosome)



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