About Biologi

Biologi

I. a. Find 6 lab symbols with meanings and examples!

Symbols	Meaning	Definition	Examples
	Flammable liquid	a flammable liquid is a liquid that   can catch fire	Acetone,  diesel, ethanol, diethylether, gasoline, jet fuel, kerosene, vegetable oil.
	Corrosive substance	A corrosive substance is one that will destroy or irreversibly damage another surface or substance with which it comes into contact	Acid and Bases, such as: Sulfuric acid, nitrit acid, Sodium Hidroxide (NaOH), Pottasium Hidroxide (KOH)
	Biological hazards	Biological substances that pose a threat to the health of living organisms, primarily that of humans.	Viruses, such as HIV, hepatitis, SARS as well as some cell cultures and non-infectious bacteria, such as: e-coli
	Toxicity	Toxicity is the degree to which a substance can damage an organism	Lead, mercury, asbestos, hidrofluoric acid, clorine gas, coal dust, and most medication
	Ionizing radiation	Radiation with sufficient energy to remove an electron from an atom or molecule.	X-rays, muons, protons, alpha, particles, pions, electrons, neutrons, potassium, uranium, and thorium.
	Chemical weapon	Chemical weapon (CW) is a device that uses chemicals formulated to inflict death or harm to human beings	Nerve agents: Tabun (GA) Sarin (GB)

I.B Find 20 apparatus and it’s function!

	Bunsen Burner	Piece of laboratory equipment that produces a single open gas flame, which is used for heating, sterilization, and combustion
	Beaker	Beaker is a simple container for stirring, mixing and heating liquids commonly used in many laboratories.
	Burette	It is used to dispense known amounts of a liquid reagent in experiments for which such precision is necessary, such as a titration experiment
	Retort	Retort is a glassware device used for distillation or dry distillation of substances.
	Pycnometer	A device used to determine the density of a liquid
	Soxhelt extractor	Extraction of a lipid from a solid material
	Erlenmeyer flask	The Erlenmeyer is usually marked on the side (graduated) to indicate the approximate volume of contents, and has a spot of ground glass or enamel where it can be labeled with a pencil.
	Test tube	Test tubes are widely used by chemists to hold, mix, or heat small quantities of solid or liquid chemicals, especially for qualitative experiments and assays
	Thistle tube	Thistle tubes are typically used by chemists to add liquid to an existing system of apparatus.
	Separatory funnel	Separate (partition) the components of a mixture between two immiscible solvent phases of different densities
	Volumetric flask	Volumetric flasks are used for making up solutions to a known volume
	Fleaker flask	container for liquids
	Round-Bottom flask	round-bottom flasks are used in a variety of applications where the contents are heated or boiled.
	Thiele tube	Such a setup is commonly used in the determination of the melting point of a substance.
	Meker-Fisher burner	Meker-Fisher burner is a piece of laboratory equipment that produces a single open gas flame, used for heating, sterilization, and combustion
	Teclu burner	Producing a hotter flame than a Bunsen Burner
	Cuvette	Hold samples for spectroscopic experiments
	NMR tube	An NMR tube is a thin glass walled tube used to contain samples in nuclear magnetic resonance spectroscopy
	Eudiometer	A eudiometer is a laboratory device that measures the change in volume of a gas mixture following a physical or chemical change
	Gas syringe	A gas syringe also known as glass collecting bottle, is a piece of laboratory glassware used to insert or withdraw a volume of a gas from a closede system, or to measure the volume of gas evolved from a chemical reaction

II. Write minimal 10 work safety in english!

The Work Safety

1.    Do not enter laboratory without permission

2.    Do not eat and drink inside the laboratory

3.    Do not run around inside the laboratory

4.    Do not do any experiment without permission

5.    Do not damage any laboratory equipments

6.    Read all guidance carefully

7.    Do not inhale any gas deeply

8.    Use all equipment properly and carefully

9.    Wash your hand after working in the laboratory

10.  Never taste any material in the laboratory without permission

11.  Upon completion of work, wash and dry all equipment, do not put any solid materials into the sink, put every laboratory equipment to their proper places

12.  You should wear laboratory clothes when you work in the laboratory