Microbiology Connect Chapter 4
_______ Manual of Systematic Bacteriology is a manual of bacterial descriptions and classifications
Bergey's
Bacterial endospores are not produced by Staphylococcus Sporosarcina Bacillus Clostridium All of the choices are correct
Staphylococcus
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
True
The bacterial chromosome is located in the cell membrane contains all the cell's plasmids is part of the nucleoid forms a single linear strand of DNA All of the choices are correct
is part of the nucleoid
Bacteria with small bunches of flagella emerging from the same site are said to be lophotrichous peritrichous monotrichous amphitrichous spirilla
lophotrichous
The term that refers to the presence of flagella all over the cell surface is amphitrichous atrichous lophotrichous monotrichous peritrichous
peritrichous
Which term is not used to describe bacterial cell shapes? coccus tetrad vibrio rod spirochete
tetrad
In the Gram stain, the mordant is Crystal Violet Safranin Alcohol Water Iodine
Iodine
Gram-negative bacteria do not have peptidoglycan in their cell walls
False
Please select all of the statements that are true about endospores 1. Bacterial endospores are highly resistant to heat, drying, and radiation 2. Endospores are only found in the environment and are not medically relevant 3. Endospores can exist in the environment for indefinite periods of time 4. Endospores resist boiling and therefore steam must be used to destroy endospores present in food 5. Endospores can be formed by an genus of bacteria
1. Bacterial endospores are highly resistant to heat, drying, and radiation 3. Endospores can exist in the environment for indefinite periods of time 4. Endospores resist boiling and therefore steam must be used to destroy endospores present in food
Please order the following choices to reflect the generalized anatomy of bacterial cells with "1" being the innermost cell component and "4" being the outermost cell component Glycocalyx Cell Wall Cytoplasmic Matrix Cell Membrane
1. Cytoplasmic Matrix 2. Cell Membrane 3. Cell Wall 4. Glycocalyx
Please match the cell components with the type of cell where it is found. If the component is found in both gram-positive and gram-negative cells, select "Both gram-positive and gram-negative cells" 1. Teichoic Acid 2. Lipopolsaccharide; outer membrane 3. Peptidoglycan; cell membrane
1. Gram-Positive 2. Gram-Negative 3. Both
Match the cell component with its role in the cell 1. Chromosome 2. Plasmid 3. Ribosome 4. Cytoskeleton 5. Inclusion Bodies 6. Granules
1. The structure which contains the essential DNA of the cell 2. The structure which contains the nonessential DNA of the cell 3. Composed of RNA and protein, this structure synthesizes new proteins 4. This structure is a network of proteins polymers that helps stabilize the shape of the cell from within 5. This structure stores nutrients during periods of ample resources to compensate for times when nutrients are scarce 6. This structure stores inorganic compounds, such as sulfur and polyphosphate
Please match the cell component with the statement that most accurately describes it to test your understanding of the glycocalyx, the different firms and their important functions 1. Glycocalyx 2. Slime Layer 3. Capsule
1. This is the general term which describes all the various coatings covering the surface of the cell 2. This loosely attached, thin mucoid layer protects the cell from drying out or losing nutrients 3. This layer of polysaccharides an/or proteins tightly bound to the cell and contributes to the cell's pathogenicity
Please match the terms related to flagella with the statement that most accurately describes them to test your understanding of the attachment patterns of bacterial flagella and axial flagella 1. Polar 2. Monotrichous 3. Lophotrichous 4. Amphitrichous 5. Peritrichous
1. This type of flagella can be found at either or both ends of a cell 2. This pattern has one flagellum attached at one end of the cell 3. This pattern has groups of flagella all originating from the same point on the cell 4. This pattern has flagella at both poles of the cell 5. This pattern consists of flagella randomly distributed around the cell
Endospores are metabolically inactive resistant to heat and chemical destruction resistant to destruction by radiation living structures All of the choices are correct
All of the choices are correct
Please select all of the following which are found in all cells regardless of cell type Cell Membrane Cell Wall Cytoplasm DNA Organelles
Cell Membrane, Cytoplasm, and DNA
Movement of a cell toward a chemical stimulus is termed _______
Chemotaxis
Please select all of the following which are contents of the cell cytoplasm Chromosome Ribosome Water Glycocalyx Fimbriae
Chromosome Ribosome Water
What is the correct sequence for a Gram stain?
Crystal Violent, Gram's Iodine, Alcohol, Safranin
The region between the bacterial cell membrane and the cell wall is called the outer membrane
False
The term diplocci refers to an irregular cluster of spherical bacterial cells
False
A bacterial genus that has waxy mycolic acid in the cell walls is Myobacterium Mycoplasma Streptococcus Corynebacterium Salmonella
Myobacterium
Which of the following characteristics is not a property of cells or living things? Cell boundary Ability to reproduce Nucleus Responds to stimulus All of the choices are correct
Nucleus
All bacterial cells have a chromosome fimbriae endospores capsules flagella
a chromosome
The outcome of the Gram stain is based on differences in the cell's ribosomes inclusions cell wall cell membrane flagella
cell wall
Peptidoglycan is a unique marcomolecule found in bacterial cell walls cell membranes capsules slime layers inclusions
cell walls
Bacterial cells could have any of the following appendages, except flagella cilia fimbriae periplasmic flagella (axial filaments) sex pili
cilia
Chemical analysis of a bacterial cell structure detects calcium dipicolinic acid. What is the identity of this structure? cell wall capsule slime layer nucleoid endospore
endospore
The cell _____is the external covering that lies outside of the cell cytoplasm and is composed of the cell membrane and the cell ______.
envelope, wall
The short, numerous appendages used by some bacterial cells for adhering to surfaces are called flagella cilia fimbriae periplasmic flagella (axial filaments) sex pili
fimbriae
A bacterial cell exhibiting chemotaxis probably has fimbriae capsule mesosomes flagella metachromatic granules
flagella
The function of bacterial endospore is to convert gaseous nitrogen to a usable form for plants for reproduction and growth for protection of genetic material during harsh conditions the storage of excess cell materials to has sites for photosynthesis
for protection of genetic material during harsh conditions
Lipopolysaccharide is an important cell wall component of gram-negative bacteria gram-positive bacteria acid-fast bacteria mycoplasmas protoplasts
gram-negative bacteria
A prokaryotic cell wall that has primarily peptidoglycan with small amounts of teichoic aicd and lipteichoic acid is gram-negative gram-positive archaea spheroplast acid fast
gram-positive
Which is mismatched? ribosomes- protein synthesis inclusions- excess cell nutrients and materials plasmids- genes essential for growth and metabolism nucleoid- hereditary material cytoplasm- dense, gelatinous solution
plasmids- genes essential for growth and metabolism
The most immediate result of destruction of a cell's ribosomes would be material would not be able to cross the cell membrane protein synthesis would stop destruction of the cell's DNA formation of glycogen inclusions loss of capsules
protein synthesis would stop