Question 1

Sarcinae refers to

Accepted Answer

A)  cocci in pairs.
B)  a cuboidal packet of cells.
C)  groups of endopsores.
D)  coffee-bean-shaped rods in pairs.
E)  vibrios in threes.

Question 2

Lysozyme, an enzyme found in tears, provides a natural defense against bacteria by

Accepted Answer

A)  hydrolyzing peptidoglycan in cell walls.
B)  inhibiting protein synthesis.
C)  removing flagella.
D)  dissolving the cell membrane.
E)  removing the capsule from outside the cell.

Question 3

Discuss biofilms with regard to their formation, unique properties, and significance to the environment and the human body.Explain how a biofilm differs from a typical bacterial colony growing on a nutrient agar medium.

Accepted Answer

Biofilms are complex communities of micr...

Question 4

Movement of a cell toward a chemical stimulus is termed _____.

Accepted Answer

The answer of Movement of a cell toward a chemical...

Question 5

Chemical analysis of a bacterial cell structure detects calcium dipicolinic acid.What is the identity of this structure?

Accepted Answer

A)  cell wall
B)  capsule
C)  slime layer
D)  nucleoid
E)  endospore

Question 6

If you observe rod-shaped, pink cells on a slide that had just been Gram stained, you can assume that their cell walls contain endotoxin.

Accepted Answer

A) True 
 B)False

Question 7

The most immediate result of destruction of a cell's ribosomes would be

Accepted Answer

A)  material would not be able to cross the cell membrane.
B)  protein synthesis would stop.
C)  destruction of the cell's DNA.
D)  formation of glycogen inclusions.
E)  loss of capsule.

Question 8

Which statement is not a characteristic of biofilms?

Accepted Answer

A)  They can be involved with human disease.
B)  They involve bacteria only.
C)  They evolve and adapt to their surroundings.
D)  They are very difficult to eliminate with antimicrobials.
E)  They can accumulate on living and nonliving surfaces.

Question 9

Spirochetes have a twisting and flexing locomotion due to appendages called

Accepted Answer

A)  flagella.
B)  cilia.
C)  fimbriae.
D)  periplasmic flagella (axial filaments) .
E)  sex pili.

Question 10

The enzyme _____, that is found in tears and saliva, can hydrolyze the bonds in the glycan chains of certain bacterial cell walls.

Accepted Answer

The answer of The enzyme _____, that is found in...

Question 11

The presence of thylakoids, phycocyanin, gas inclusions, and cysts would be associated with

Accepted Answer

A)  green sulfur bacteria.
B)  cyanobacteria.
C)  purple sulfur bacteria.
D)  archaea.
E)  spirochetes.

Question 12

The prokaryotic cell membrane is a site for many enzymes and metabolic reactions.

Accepted Answer

A) True 
 B)False

Question 13

The term that refers to the presence of flagella all over the cell surface is

Accepted Answer

A)  amphitrichous.
B)  atrichous.
C)  lophotrichous.
D)  monotrichous.
E)  peritrichous.

Question 14

Which of the following characteristics is not a property of cells or living things?

Accepted Answer

A)  cell boundary
B)  ability to replicate
C)  nucleus
D)  responds to stimulus
E)  All of the choices are not fundamental characteristics of living things.

Question 15

A prokaryotic cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is

Accepted Answer

A)  gram-negative.
B)  gram-positive.
C)  archaea.
D)  a spheroplast.
E)  acid fast.

Question 16

Which is mismatched?

Accepted Answer

A)  ribosomes - protein synthesis
B)  inclusions - excess cell nutrients and materials
C)  plasmids - genes essential for growth and metabolism
D)  nucleoid - hereditary material
E)  cytoplasm - dense, gelatinous solution

Question 17

A bacterial genus that has waxy mycolic acid in the cell walls is

Accepted Answer

A)  Mycobacterium.
B)  Mycoplasma.
C)  Streptococcus.
D)  Corynebacterium.
E)  Salmonella.

Question 18

During the Gram stain, gram _____ cells decolorize when the alcohol is applied.

Accepted Answer

The answer of During the Gram stain, gram _____ cells...

Question 19

Classification and taxonomy provide information and contribute to each of the following endeavors, except

Accepted Answer

A)  identification of unknown species.
B)  the study of evolutionary relationships.
C)  tracing the origins of bacteria.
D)  selection of appropriate antibiotics.
E)  enabling communication among scientists regarding the same and different species of microbes.

Question 20

Which of the following characteristics of living things is/are not found among viruses?

Accepted Answer

A)  heredity
B)  cellular structure
C)  ability to evolve
D)  presence of nucleic acid
E)  All of these characteristics are lacking in viruses.

Exam 4: A Survey of Prokaryotic Cells and Microorganisms

Which is mismatched?

Correct AnswerverifiedShow Answer

Discuss biofilms with regard to their formation, unique properties, and significance to the environment and the human body.Explain how a biofilm differs from a typical bacterial colony growing on a nutrient agar medium.

Correct AnswerAnswered by ExamLex AIBiofilms are complex communities of micr...View AnswerShow Answer

The prokaryotic cell membrane is a site for many enzymes and metabolic reactions.

Correct AnswerverifiedShow Answer

Which of the following characteristics is not a property of cells or living things?

Correct AnswerverifiedShow Answer

The enzyme _____, that is found in tears and saliva, can hydrolyze the bonds in the glycan chains of certain bacterial cell walls.

Correct AnswerverifiedShow Answer

During the Gram stain, gram _____ cells decolorize when the alcohol is applied.

Correct AnswerverifiedShow Answer

Lysozyme, an enzyme found in tears, provides a natural defense against bacteria by

Correct AnswerverifiedShow Answer

Which of the following characteristics of living things is/are not found among viruses?

Correct AnswerverifiedShow Answer

The presence of thylakoids, phycocyanin, gas inclusions, and cysts would be associated with

Correct AnswerverifiedShow Answer

Chemical analysis of a bacterial cell structure detects calcium dipicolinic acid.What is the identity of this structure?

Correct AnswerverifiedShow Answer

The term that refers to the presence of flagella all over the cell surface is

Correct AnswerverifiedShow Answer

Classification and taxonomy provide information and contribute to each of the following endeavors, except

Correct AnswerverifiedShow Answer

Spirochetes have a twisting and flexing locomotion due to appendages called

Correct AnswerverifiedShow Answer

The most immediate result of destruction of a cell's ribosomes would be

Correct AnswerverifiedShow Answer

Sarcinae refers to

Correct AnswerverifiedShow Answer

A prokaryotic cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is

Correct AnswerverifiedShow Answer

A bacterial genus that has waxy mycolic acid in the cell walls is

Correct AnswerverifiedShow Answer

If you observe rod-shaped, pink cells on a slide that had just been Gram stained, you can assume that their cell walls contain endotoxin.

Correct AnswerverifiedShow Answer

Which statement is not a characteristic of biofilms?

Correct AnswerverifiedShow Answer

Movement of a cell toward a chemical stimulus is termed _____.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Biofilms are complex communities of micr...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified