Biotechnology Exam 1 Questions and Answers
latest Update | 100% Correct
hypothesis
an educated guess OR a testable question based on previous theory
independent variable
experimental factor that is manipulated; the variable whose effect is being
studied
dependent variable
variables unchanged by the researcher; data that is being collected
controls
conditions that are kept the same to ensure the experiment works
positive control
will show predictable results
negative control
should show no results
serological pipette
blow-out
mohr pipette
not blowout
volumetric pipette
delivers a single volume
pasteur pipette
glass; transfers volumes up to 2.5 mL; uncalibrated
transfer pipette
, disposable; transfers volumes 1-2 mL
micropipette parts
plunger, ejector, volume display, dispensing tip
non-volumetric glassware
beakers, flasks; is still graduated
volumetric glassware
volumetric flasks, graduated cylinders
graduated cylinder
measures volumes over 10 mL
volumetric flask
measures a specific volume; prepares solution of known concentration
balances
pan/electric measures in grams; analytical measures in miligrams
mass/volume solution
(grams of solute)/(volume desired) = concentration desired
%mass/volume concentration
(grams of solute)/(volume desired) = decimal concentration desired -> percent
molarity calculation
(grams of solute)/(desired volume, liters)(molecular weight, amu) = molarity
desired
categories of carbohydrates
monosaccharides, disaccharides, polysaccharides
use of carbohydrates
energy
types of lipids
latest Update | 100% Correct
hypothesis
an educated guess OR a testable question based on previous theory
independent variable
experimental factor that is manipulated; the variable whose effect is being
studied
dependent variable
variables unchanged by the researcher; data that is being collected
controls
conditions that are kept the same to ensure the experiment works
positive control
will show predictable results
negative control
should show no results
serological pipette
blow-out
mohr pipette
not blowout
volumetric pipette
delivers a single volume
pasteur pipette
glass; transfers volumes up to 2.5 mL; uncalibrated
transfer pipette
, disposable; transfers volumes 1-2 mL
micropipette parts
plunger, ejector, volume display, dispensing tip
non-volumetric glassware
beakers, flasks; is still graduated
volumetric glassware
volumetric flasks, graduated cylinders
graduated cylinder
measures volumes over 10 mL
volumetric flask
measures a specific volume; prepares solution of known concentration
balances
pan/electric measures in grams; analytical measures in miligrams
mass/volume solution
(grams of solute)/(volume desired) = concentration desired
%mass/volume concentration
(grams of solute)/(volume desired) = decimal concentration desired -> percent
molarity calculation
(grams of solute)/(desired volume, liters)(molecular weight, amu) = molarity
desired
categories of carbohydrates
monosaccharides, disaccharides, polysaccharides
use of carbohydrates
energy
types of lipids
