What were the five molecules that made up the majority of the early Earth atmosphere? - Answers
Water vapor (H2O)
Nitrogen (N2)
Carbon dioxide ( CO2)
Methane( CH4)
Ammonia ( NH3)
What three conditions were simulated by the Miller-Urey apparatus to show that life could arise? -
Answers Electrodes simulated lighting
The 5L flask was filled with the gasses found in the early atmosphere.
A 500mL flask contains boiling water to stimulate evaporation from the oceans.
What complex compounds were formed in the apparatus after two weeks? - Answers After two weeks
Carbon was converted to sugar, amino acids and nucleic acids.
Define organic compounds - Answers are larger and mostly made of carbon- hydrogen covalent bonds.
Why is carbon such a central element in the formation of organic compounds? - Answers Carbon is the
central element because it can form four bonds, more than most elements.
Polymer - Answers organic compounds that are made of repeating units
Monomer - Answers organic compounds that are individual units.
What is the difference between a polymer and a monomer? - Answers P repeats , M individual
Nucleic acids are used to store instructions within cells. - Answers The monomer of nucleic acids is:
Nucleotides
Examples of nucleic acids are.......... - Answers DNA, RNA, ATP
Nucleic acids are made of....... - Answers nucleotides
What are the three parts of a nucleotide? - Answers Phosphate (PO)
5-carbon sugar
Nitrogenous base(adenine).
What does ATP do in cells? - Answers It transfers energy within the cell and can be broken down into
ADP when energy is needed.