Worksheetsbiology pracitcal exam review
Total questions: 38
Worksheet time: 38mins
-Calibrates the Spectrophotometer
-prevents outside variable to be measured
-allows only the desired molecules to be read
(a)
color: yellow (light coloration)
Measure amount of reducing sugar (Maltose)
Redish-dark amber is the opposite color when no maltose is identified
(a)
color: clear/transparent (opposite is black-dark blue)
Measure the amount of starch there is
Interacts with and binds to starch
(a)
Unit 4 independent variable
(Hint: spectrometer with serial dilution)
(a)
Unit 4 dependent variable
(Hint: spectrophotometer with serial dilution)
(a)
What reagent is this?
Color: blue
Measure the amount of protein concentration
Higher protein concentration the deeper the blue color is
(a)
Liquid that dissolves the solution
(Hint: always water)
(a)
Material that gets broken down by the solvent
(a)
Taking a sample of a solution and diluting it through a series of standard volumes
(Hint: 40 -> 20 -> 10 -> etc)
(a)
Measures the absorbency of light
(Hint: you can also tell what the percentage of light that was transmitted)
(a)
Unit 6: Buffering capacity
What is the independent variable?
(a)
Unit 6: Buffering capacity
What is the dependent variable?
(a)
removes cofactors and prevents them from binding/interacting with protein/enzyme
(Hint: was called EGTA)
(a)
metal (non-protein) ions binds to enzymes allows to fill in gaps that missed by substrates
Needed for amylase activity
(a)
resistance to pH level change
High = strongly resists pH change
(Solution E)
Low = resistance to pH change
(Solution D)
(a)
Due to either different temperature or pH levels
When a protein loses its shape And function
When there was an increase of leftover starch, shows that the amylase wasn’t working
(a)
V1=(C2/C1) x V2
(a)
What is the unit 3 test subject?
(a)
Unit 3 independent variable
(Hint: daphnia magna)
(a)
Unit 3: dependent variable
(Hint: daphnia magna)
(a)
What is the kingdom?
(a)
What is the domain?
(a)
What is the species?
(a)
What is the kingdom?
(a)
What is the domain?
(a)
What is the species?
(a)
What is the kingdom?
(a)
What is the domain?
(a)
What is the species?
(a)
What is the kingdom?
(a)
What is the domain?
(a)
What is the species?
(a)
clarity of an image
As magnification increases, this also increases
(a)
amount of playroom you have before it unfocuses
As magnification increase as it field decreases
(a)
Ocular lens (10x) times objective lens
(a)
amount of area of the specimen you can see
As magnification increase this descrease
(a)
Is this gram positive or negative?
Due to a thin layer and the cell wall crystal violet is washed away and red appears u
(a)
Stain: crystal violet
Thick layer of peptoglycan
(a)
