Quiz Questions Flashcards
How would an ‘L’ look if it was placed under the microscope?
Flip upside down then right to left kinda look like a 7
What happens to DOF and FOV as magnification increases?
they both decrease
What is the working distance?
The distance between the specimen and the objective lens.
How do you calculate numerical aperture?
Is solute concentration high or low in hypertonic solution? If placed in hypotonic environment what would happen?
Solute concentration is high in hypertonic solution and water would move into hypertonic solution if placed in hypotonic environment.
Describe the reaction happening when benedicts reagent is exposed to glucose?
Glucose is reducing sugar
CU2+ is reduced to Cu+ by glucose
In what solution would you expect the potato to gain weight? Lose weight? or stay the same weight? What tonicity would each solution be in relation to the potato?
- 0M - Gain weight (hypotonic)
- 3M - no weight change (isotonic)
- 6M - Lose weight (hypertonic)
What is the reaction between I2KI and starch? Why is this important to our lab we did?
I2KI reacts with starch to make a purple color, if starch leaked out of the bag into the beakers the solution would have turned purple. some of the I2KI did go into the bag and start turning the solution purple.
What does amylase break down starch into?
Maltose (two-glucose-unit compound)
What is the independent variable in the amylase lab?
pH and temperature
What is the dependent variable of the amylase experiment?
The time it took for the starch to disappear
Why won’t amylase work in the stomach?
In experiment it wouldn’t work in pH of 4, so it wouldn’t work in stomach with pH of 2
What is CO2 converted to in photosynthesis?
sugar (G3P)
If molecule A is less polar than molecule B, which molecule would travel less if dissolved in nonpolar solvent and placed on chromotography paper?
Molecule B
What is the purpose of an absorption spectrum?
Measure the light absorbance of pigments at different wavelengths of light.
