cell and lab apparatus

• The nucleus is the control center of the cell, containing genetic material (DNA) that determines an organism's characteristics.
• beaker holds solid or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated
• beaker tongs used to move beakers containing hot liquids
• Erlenmeyer flask holds solids or liquids that may release gases during a reaction or that are likely to splatter if stirred or heated
• Florence flask rarely used in 1st year chem. Used for mixing chemicals.
• graduated cylinder - is used to measure the volume of a solution or solid
• test tubes has ignition tube, 13 x 100 mm, 10 x 75 mm
• test tube holder - holds test tubes in place during the experiment.
• test tube racks is used for holding and organizing test tubes on the laboratory counter
• rubber stoppers is used to close containers to avoid spillage and contamination.
• spot plates is used when we want to perform many small scale reactions at one time
• glass stir rod is used to manually stir solutions. It is also used to transfer a single drop of a solution.
• forceps or tweezers are used to pick up small objects
• funnel used to aid in the transfer of liquid from one vessel to another
• watch glass is used to hold a small amount of solid , such as product of a reaction
• wash bottle is used to deliver a wash solution to a specific area.
• weighing boat is used to weigh solids that will be transferred to another vessel
• Bunsen burner is used for heating of a nonvolatile liquids and solids
• strikers are used to light Bunsen burner
• evaporating dish is used for the heating of stable solid compounds and elements
• crucible is used for heating certain solids, particularly metals, to very high temperatures.
• clay triangle is used as a support for porcelain crucible when being heated over a Bunsen burner
• crucible tongs handles hot crucibles
• ring stand is a safe and convenient way to perform reactions that require heating using a Bunsen burner
• utility clamps is used to secure test tubes, distillation columns, and burets to the ring stand
• iron ring is connected to a ring stand and provide stable elevated platform for the reaction
• wire gauze sits on the iron ring to provide a place to stand a beaker.
• double buret clamps is used to burets. long graduated tubes used in titration
• triangular file is used to primarily to cut glass rod
• red litmus paper is used to identify bases
• blue litmus paper is used to identify acids
• gas collecting bottle is used when large volumes are produced, and must be collected by the displacement of water
• medicine dropper is used to transfer a small amount of liquid
• Mohr pipet measures and delivers exact volume of liquid
• glass plates provides a surface for semi micro scale experiments, such as drop reactions and testing of acids and bases
• spatulas are used to dispense solid chemicals from their containers
• prokaryotic cells do not have structures surrounded by membrane. one celled organisms
• eukaryotic cells contains organelles surrounded by membranes
• cell membrane is the outer membrane of a cell that controls movement in and out of the cell
• cell wall is mostly found in plant cells and it protects and supports cells