MCB3020 Exam 1 UF ACTUAL Questions
and CORRECT Answers
Prokaryotic kingdom - CORRECT ANSWER - Monera
Hami - CORRECT ANSWER - A network of cells that have a structure that makes them
look like grappling hooks, suggesting that they are involved in attaching cells to a surface
What class of organisms possesses Hami? - CORRECT ANSWER - Only Archaeans
Water Activity (Aw) - CORRECT ANSWER - A quantitative measurement of the water
availability in a habitat
Osmotolerant - CORRECT ANSWER - An organism that can grow in a wide range of
solute concentrations or water activity
Halophiles - CORRECT ANSWER - Organisms that can withstand high salt
concentrations
Glycosidic linkages - CORRECT ANSWER - Hold together carbohydrates
Ester Linkages - CORRECT ANSWER - Hold together lipids
Peptide bonds - CORRECT ANSWER - Hold together proteins
Phosphodiester bonds - CORRECT ANSWER - Hold together Nucleic Acids
Side chains of proteins - CORRECT ANSWER - Determines Protein tertiary structure
, Refractive index - CORRECT ANSWER - the ratio of the velocity of light in a vacuum to
its veloctiy in a medium- determines how much light will bend as it passes through the medium
Differential stain - CORRECT ANSWER - Stain that uses more than one dye
Positive stain - CORRECT ANSWER - (Basic Stain) positively-charged basic dye to
negatively charged bacterial surfaces
Negative stain - CORRECT ANSWER - (Acidic stain) negatively-charged acidic dye that
fills in the spaces around the specimen providing a dark contrast
Capsule - CORRECT ANSWER - a well-organized layer of polysaccharides that makes it
difficult for a phagocytic cell in the immune system to engulf and destroy the cell
Streptococcus or Staphylococcus - CORRECT ANSWER - Gram-positive, coccus bacteria
Neisseria gonorrhoeae - CORRECT ANSWER - Gram-negative, coccus bacteria
Bacillus or Clostridium - CORRECT ANSWER - Gram-positive bacillus bacteria
E. coli and salmonella - CORRECT ANSWER - Gram-negative, bacillus bacteria
Lyme Disease and syphilis - CORRECT ANSWER - Spirochete-shaped bacteria
Cholera - CORRECT ANSWER - Vibrio-shaped
Pleomorphic - CORRECT ANSWER - Bacteria that can alter their size and shape in
response to environmental conditions
and CORRECT Answers
Prokaryotic kingdom - CORRECT ANSWER - Monera
Hami - CORRECT ANSWER - A network of cells that have a structure that makes them
look like grappling hooks, suggesting that they are involved in attaching cells to a surface
What class of organisms possesses Hami? - CORRECT ANSWER - Only Archaeans
Water Activity (Aw) - CORRECT ANSWER - A quantitative measurement of the water
availability in a habitat
Osmotolerant - CORRECT ANSWER - An organism that can grow in a wide range of
solute concentrations or water activity
Halophiles - CORRECT ANSWER - Organisms that can withstand high salt
concentrations
Glycosidic linkages - CORRECT ANSWER - Hold together carbohydrates
Ester Linkages - CORRECT ANSWER - Hold together lipids
Peptide bonds - CORRECT ANSWER - Hold together proteins
Phosphodiester bonds - CORRECT ANSWER - Hold together Nucleic Acids
Side chains of proteins - CORRECT ANSWER - Determines Protein tertiary structure
, Refractive index - CORRECT ANSWER - the ratio of the velocity of light in a vacuum to
its veloctiy in a medium- determines how much light will bend as it passes through the medium
Differential stain - CORRECT ANSWER - Stain that uses more than one dye
Positive stain - CORRECT ANSWER - (Basic Stain) positively-charged basic dye to
negatively charged bacterial surfaces
Negative stain - CORRECT ANSWER - (Acidic stain) negatively-charged acidic dye that
fills in the spaces around the specimen providing a dark contrast
Capsule - CORRECT ANSWER - a well-organized layer of polysaccharides that makes it
difficult for a phagocytic cell in the immune system to engulf and destroy the cell
Streptococcus or Staphylococcus - CORRECT ANSWER - Gram-positive, coccus bacteria
Neisseria gonorrhoeae - CORRECT ANSWER - Gram-negative, coccus bacteria
Bacillus or Clostridium - CORRECT ANSWER - Gram-positive bacillus bacteria
E. coli and salmonella - CORRECT ANSWER - Gram-negative, bacillus bacteria
Lyme Disease and syphilis - CORRECT ANSWER - Spirochete-shaped bacteria
Cholera - CORRECT ANSWER - Vibrio-shaped
Pleomorphic - CORRECT ANSWER - Bacteria that can alter their size and shape in
response to environmental conditions
