Microbiology- T. Johnson, Tarleton Questions With
Complete Solutions
1673 Correct Answers first microbes were observed with the
invention of the microscope
3 major basic shapes of bacteria Correct Answers
bacillus(rods), coccus(circular), spirillum (spiral)
4 methods of identifying cells Correct Answers 1. macroscopic
(colonial characteristics) and microscopic (arrangement)
appearance
2.biochemical tests (pH indicator giving color change due to
metabolic abilities) determines if organisms are metabolizing
different sugars
3. genetic characteristics
4. immunological testing (isolates against known antibodies;
reaction with antibodies= positive test)
acid fast stain Correct Answers has a unique waxy lipid
material called "mycolic acid" in their cell walls, and are thus
"acid-fast"
-dont have a positive/negative cell wall
-prevents the uptake of dyes used in Gram stain
-not decolorized by acid-alcohol
acidic dyes Correct Answers anionic, negatively charged
chromophore (negative staining)
Algae Correct Answers -eukaryotes (unicellular and
multicellular) plantlike
, -cellulose cell walls
- some have flagella
-use photosynthesis for energy
Anton van Leeuwenhoek Correct Answers First to observe
microorganisms using a simple microscope. (bacteria, sperm,
protists, blood cells) Invents better microscope. (Cell theory)
Archaea Correct Answers -prokaryotic
-lack peptidoglycan
-psuedomurein cell walls
live in extreme environments
-includes: methanogens, extreme halophiles, extreme
thermophiles
Are bacteria unicellular or multicellular? Correct Answers
unicellular
Bacillus thuringiensis Correct Answers A naturally occurring
soil bacterium that produces a protein that kills many pests,
including caterpillars and the larvae of some flies and beetles.
Bacteria and Archaea Correct Answers Prokaryotic
Bacteriology Correct Answers study of bacteria
basic dyes Correct Answers cationic, positively charged
chromophore (positive staining)
Beneficial microbes Correct Answers -decompose organic
waste
Complete Solutions
1673 Correct Answers first microbes were observed with the
invention of the microscope
3 major basic shapes of bacteria Correct Answers
bacillus(rods), coccus(circular), spirillum (spiral)
4 methods of identifying cells Correct Answers 1. macroscopic
(colonial characteristics) and microscopic (arrangement)
appearance
2.biochemical tests (pH indicator giving color change due to
metabolic abilities) determines if organisms are metabolizing
different sugars
3. genetic characteristics
4. immunological testing (isolates against known antibodies;
reaction with antibodies= positive test)
acid fast stain Correct Answers has a unique waxy lipid
material called "mycolic acid" in their cell walls, and are thus
"acid-fast"
-dont have a positive/negative cell wall
-prevents the uptake of dyes used in Gram stain
-not decolorized by acid-alcohol
acidic dyes Correct Answers anionic, negatively charged
chromophore (negative staining)
Algae Correct Answers -eukaryotes (unicellular and
multicellular) plantlike
, -cellulose cell walls
- some have flagella
-use photosynthesis for energy
Anton van Leeuwenhoek Correct Answers First to observe
microorganisms using a simple microscope. (bacteria, sperm,
protists, blood cells) Invents better microscope. (Cell theory)
Archaea Correct Answers -prokaryotic
-lack peptidoglycan
-psuedomurein cell walls
live in extreme environments
-includes: methanogens, extreme halophiles, extreme
thermophiles
Are bacteria unicellular or multicellular? Correct Answers
unicellular
Bacillus thuringiensis Correct Answers A naturally occurring
soil bacterium that produces a protein that kills many pests,
including caterpillars and the larvae of some flies and beetles.
Bacteria and Archaea Correct Answers Prokaryotic
Bacteriology Correct Answers study of bacteria
basic dyes Correct Answers cationic, positively charged
chromophore (positive staining)
Beneficial microbes Correct Answers -decompose organic
waste
