Mizzou Micro 2800 Exam 1 Questions
and Correct Answers.
Nosocomial infection - Answer hospital acquired infection
Prokaryote (Bacterial) Basics - Answer -Smallest and most versatile independently living cells
known
-Unique cellular structure
-No nucleus or higher DNA organization
-No complex, membrane-bound organelles
-Completely different makeup of the cell wall lipids
What is the main difference between bacteria and eukaryotic cells? - Answer Their cell wall
is composed differently
What are the three shapes of bacteria? - Answer cocci, bacilli, spirilla
Coccus - Answer A spherical bacterium.
Bacillus - Answer Rod shaped bacteria
Spirillum/Spirochete - Answer curviform or spiral-shaped
Coccobacillus shape - Answer short round rod
Vibrio - Answer comma shaped
Pleomorphism - Answer variation in size and shape
Diplococci - Answer cocci growing in pairs
Tetrad - Answer cocci growing in groups of four
Staphlococci - Answer Irregular clusters
, Micrococci - Answer irregular cluster of spherical bacterium
Streptococci - Answer bacteria that form a chain
Sarcina - Answer cubical packet of 8, 16, or more cells
Palisades - Answer rows of cells oriented side by side
Gram-positive bacteria - Answer -Bacteria that have simple cell walls with much
peptidoglycan.
-One lipid membrane surrounded by large, thick wall of PPG
Gram-negative bacteria - Answer -Bacteria that have complex cell walls with less
peptidoglycan but with lipopolysaccharides.
Very toxic and hard to treat.
-Two lipid membranes (OM/IM) with periplasmic space (PPS) between
What helps bacteria adhere to the environment and other cells as well as protect the bacteria? -
Answer Capsule
Slime layer - Answer unorganized and loose
True capsule of bacteria - Answer Distinct layer of cells
What is the bacteria capsule most likely made out of? - Answer polysaccharide (sugar)
Flagella - Answer whiplike tails found in one-celled organisms to aid in movement
Endoflagella - Answer flagella that spiral tightly around a cell instead of protruding
Runs counterclockwise - Answer Rotate to cause
Runs clockwise - Answer Tumbling
Fimbriae and pili - Answer attachment to surfaces, bacterial conjugation and transformation,
twitching and gliding motility
and Correct Answers.
Nosocomial infection - Answer hospital acquired infection
Prokaryote (Bacterial) Basics - Answer -Smallest and most versatile independently living cells
known
-Unique cellular structure
-No nucleus or higher DNA organization
-No complex, membrane-bound organelles
-Completely different makeup of the cell wall lipids
What is the main difference between bacteria and eukaryotic cells? - Answer Their cell wall
is composed differently
What are the three shapes of bacteria? - Answer cocci, bacilli, spirilla
Coccus - Answer A spherical bacterium.
Bacillus - Answer Rod shaped bacteria
Spirillum/Spirochete - Answer curviform or spiral-shaped
Coccobacillus shape - Answer short round rod
Vibrio - Answer comma shaped
Pleomorphism - Answer variation in size and shape
Diplococci - Answer cocci growing in pairs
Tetrad - Answer cocci growing in groups of four
Staphlococci - Answer Irregular clusters
, Micrococci - Answer irregular cluster of spherical bacterium
Streptococci - Answer bacteria that form a chain
Sarcina - Answer cubical packet of 8, 16, or more cells
Palisades - Answer rows of cells oriented side by side
Gram-positive bacteria - Answer -Bacteria that have simple cell walls with much
peptidoglycan.
-One lipid membrane surrounded by large, thick wall of PPG
Gram-negative bacteria - Answer -Bacteria that have complex cell walls with less
peptidoglycan but with lipopolysaccharides.
Very toxic and hard to treat.
-Two lipid membranes (OM/IM) with periplasmic space (PPS) between
What helps bacteria adhere to the environment and other cells as well as protect the bacteria? -
Answer Capsule
Slime layer - Answer unorganized and loose
True capsule of bacteria - Answer Distinct layer of cells
What is the bacteria capsule most likely made out of? - Answer polysaccharide (sugar)
Flagella - Answer whiplike tails found in one-celled organisms to aid in movement
Endoflagella - Answer flagella that spiral tightly around a cell instead of protruding
Runs counterclockwise - Answer Rotate to cause
Runs clockwise - Answer Tumbling
Fimbriae and pili - Answer attachment to surfaces, bacterial conjugation and transformation,
twitching and gliding motility
