BIO 111 Lab Equipment Quiz

What part of the microscope is used to adjust the focus on the specimen?

• Eyepiece

• Objective lens

• Coarse adjustment knob

• Fine adjustment knob

Which lab equipment is best used for measuring precise volumes of liquid?

• Beaker

• Graduated cylinder

• Erlenmeyer flask

• Test tube

What is the primary use of a micropipette in the laboratory?

• To measure the pH of solutions

• To transfer small, precise volumes of liquid

• To mix solutions

• To heat liquids

What is the main difference between a beaker and an Erlenmeyer flask?

• The shape

• The material they are made from

• The volume they can hold

• The type of liquids they are used with

Which of the following is not a correct use of a pipette?

• Transferring specific volumes of liquid

• Measuring the pH of a solution

• Adding reagents to a reaction mixture dropwise

• Sampling liquids from a larger container

What is the main advantage of using a micropipette over a traditional pipette?

• It can handle larger volumes of liquid

• It is more accurate for very small volumes

• It is easier to clean

• It can be used with any type of liquid

What is the purpose of the graduations marked on a graduated cylinder?

• To indicate the temperature of the liquid

• To measure the volume of liquids accurately

• To show the density of the liquid

• To prevent the liquid from spilling

Which part of the microscope holds the objective lenses?

• The base

• The arm

• The revolving nosepiece

• The stage

What distinguishes a micropipette from a regular pipette in terms of operation?

• A micropipette requires electricity to operate

• A micropipette uses a plunger mechanism for operation

• A regular pipette can measure smaller volumes than a micropipette

• A regular pipette is more accurate than a micropipette