Consider a gram-positive cell in a hypertonic medium. If the peptidoglycan were damaged, the cell would
plasmolyze OR ---> (shrink,collapse)
The motility of bacteria with flagella occurs through a series of "runs" and
The term describing bacteria with flagella distributed over the entire surface of the cell is________. When essential nutrients are depleted, some strains of bacteria form, dormant structures that form within cells.
Many pathogenic (disease-producing) bacteria have ______ that protect them from phagocytosis by host cells.
Glycocalyx OR capsules
Endoplamsic reticulum that has ribosomes attached to its outer surface is reffered to as
rough endoplasmic reticulum OR rough ER
Chemotaxis refers to the ability of microorganisms to
move toward or away from chemical stimuli
All of the following are found in the cell walls of gram-positive bacteria except
Gram-negative cells contain a periplasmic space that is
rich in degradative enzymes
All of the following are true of the gram-negative outer membrane except
it contains enzymes for energy synthesis
A population of bacterial cells has been placed in a very nutrient-poor environment with extremely low concentrations of sugars and amino acids. Which kind of membrane transport becomes a crucial in this environment?
Spherical shaped bacteria that divide and remain attached in chainlike patterns are called
Which of the following about a gram-negative cell wall is not true?
It has teichoic acids.
Which of the following processes requires energy?
Which of the following bacterial structures are necassary for chemotaxis?
Which of the following statements is true?
Endospores are extremely durable structures that can be survive high temperatures.
The plane in which a bacterial cell that divides determines the arrangement of cells.
The cell membrane is a fluid structure that allows membrane proteins to move freely.
Acid-fast bacteria demonstrate unique staining properties because of a special protein layer found in their cell walls.
Penicillin is more effective against gram-negative bacteria than gram-positive bacteria because it specifically interferes with the synthesis of lipopolysaccharide.
The endosymbiotic theory states that eukaryotic organelles evolved from symbiotic prokaryotes living within other prokaryotes.