GCU B IO 205L Fin al Exam Question s
an d an sw er s w ith accur ate
r ation ales(PASSED)
Chemical method that makes E Coli accept donor gene - answer Transformation
Solution (CaCl2)
Physical method that makes E Coli accept donor gene - answer Heat and Cold
Shock
What can be used to make antibiotics - answer Mold and Bacteria
What is the "inhibition/clear zone" - answer clear area surrounding the antibiotic
disk
The agars used in Unknown 2 - answer Mannitol and MacConkey agar
In MacConkey agar
-you look to see ____
-growth color is ____
-is it for - or + - answer -fermentation
-pink
- it's -
, Catalyst test - answer looking to see bubbles, which is H2O and O2 gas, this only
works on Gram +
In Blood agar you look to see ___ - answer hemolysis
Mannitol (Salt) agar - answer gram +
Fungi is made up of - answer mold and yeast
Mold's shape and what it's used in - answer filamentous; antibiotics and cheese
Yeast's shape and what it's used in - answer round; beer and bread
Function of normal flora in the human body - answer I produces acid to help
regulate pH and it controls other bacteria
Why does Gram + retain the purple dye, while Gram - turns pink? - answer Gram +
has a thick peptidoglycan layer, which is what the dye holds on to. Gram - has a
thin layer of peptidoglycan layer with a layer of lipopolysaccharide, which the dye
does not hold on to.
Micro-bacteria that forms tuberculosis - answer mycobacterium tuberculosis
Function of antibiotic in beta-lactim green - answer used in penicillin; breaks down
peptidoglycan and inhibits its growth
an d an sw er s w ith accur ate
r ation ales(PASSED)
Chemical method that makes E Coli accept donor gene - answer Transformation
Solution (CaCl2)
Physical method that makes E Coli accept donor gene - answer Heat and Cold
Shock
What can be used to make antibiotics - answer Mold and Bacteria
What is the "inhibition/clear zone" - answer clear area surrounding the antibiotic
disk
The agars used in Unknown 2 - answer Mannitol and MacConkey agar
In MacConkey agar
-you look to see ____
-growth color is ____
-is it for - or + - answer -fermentation
-pink
- it's -
, Catalyst test - answer looking to see bubbles, which is H2O and O2 gas, this only
works on Gram +
In Blood agar you look to see ___ - answer hemolysis
Mannitol (Salt) agar - answer gram +
Fungi is made up of - answer mold and yeast
Mold's shape and what it's used in - answer filamentous; antibiotics and cheese
Yeast's shape and what it's used in - answer round; beer and bread
Function of normal flora in the human body - answer I produces acid to help
regulate pH and it controls other bacteria
Why does Gram + retain the purple dye, while Gram - turns pink? - answer Gram +
has a thick peptidoglycan layer, which is what the dye holds on to. Gram - has a
thin layer of peptidoglycan layer with a layer of lipopolysaccharide, which the dye
does not hold on to.
Micro-bacteria that forms tuberculosis - answer mycobacterium tuberculosis
Function of antibiotic in beta-lactim green - answer used in penicillin; breaks down
peptidoglycan and inhibits its growth
