Bio-Final -1
what are the basic building blocks of proteins
amino acids linked together
how does DNA store information
as a sequence of nucleotide bases (much like all of the English language could be stored as a sequence of dots and dashes in the Morse code)
how many electrons are in an atom that has 32 protons
atoms have the same number of electrons and protons there must be 32 electrons
O2 + 2H2 ---> 2H2O what are the reactants ? what are the products ? how many molecules of H2 are used in the reaction?
reactants appeared to the left of the arrow. 02 and H2 are the reactants. products appear on the right side of the arrow the product is H20. there are two H2 molecules in the reaction
how many atoms total are in a molecule of C4H8O2? what atoms are present and how many of each atom
14 atoms. four cartons eight hydrogens and two oxygen
describe the pH scale and what it measures
A scale that measures on one side the neutral pH and on the other side the alkaline and acidic of a solution. on the scale 7 is neutral 0. A pH lower than 7 is acidic and a pH higher than 7 is alkaline
To turn a gas into a liquid do you remove or add energy?
Energy
What determines the vast majority of characteristics in an atom?
The number of electrons or protons
How many electrons are in an atom that has _______________amount of protons
electrons and protons equal in an atom
what does the subscript number after each element tell you
how many of each atom is in the molecule
two solutions of different solute concentration are separated by a membrane after a while the water levels of the two solutions change has osmosis or diffusion taken place? what kind of membrane is being used?
since the water levels changed the solvent traveled from one side of the membrane to the other the solute did not. osmosis has taken place.
what are the four stages of cellular respiration? which one produces the most energy?
the 4 stages are glycolysis, the formation of acetyl coenzyme, A, the Kerbs cycle, and the electron transportation system.the electron transportation system produces the most energy because it has gains 32
