← LMED 101 pt 2 Test
5 Written Questions
5 Matching Questions
- graduated cylinders
- automatic micropipettors
- a piston operated device that is capable of delivering small predetermined repeating volumes.
- b They convert radiant energy to an equivalent amount of electrical energy
- c Cylindrical pieces of labware with several calibrated markings. Approximate measures.
- d Precisely measures very small amounts of liquids accurately
- e Wide mouth, straight sides and a pouring spout. Used for estimating amounts and for heating and mixing reagents.
5 Multiple Choice Questions
- transfer liquids from one container to another without spilling
- eliminates cross-contamination, use once and throw away, inexpensive
- a measure of the gravitational force exerted on an object
- Designed to deliver a consistent repeating volume for repetitive work.
- has mass & takes up space
5 True/False Questions
graduated pipettes → Used when great accuracy is not required. Used primarily to measure reagents. Straight piece of glass tubing with a tapered end and graduation marks on the stem.
viscosity → max amt. of mass a balance can weigh
monochromatic light → Light of many colors (wavelengths) usually referred to as white light.
phototube → Similar to photocell
-Differs in that outside voltage must be supplied.
pipettes → used to make precise volumetric measurements and to transfer liquid