pleas help me to answer this question

1) Aerobic organisms transfer electrons from fuel molecules to. 2) Define isoelectric point. 3) If a molecule has n chiral carbons, how many stereoisomers does it have? 4) All cells have: a) Membrane-bound organelles b) A plasma membrane c) Mitochondria d) A cell wall 5) What buffer system is the primary intracellular buffer? 6) Write the name of an aromatic amino acid. 7) Biosynthetic pathways are known as pathways. 8) For the generic weak acid HA with pK4=4.9, what is the pH if [A]=20mM and [HA]=20mM ? 9) Proteins and peptides have a terminus and a terminus. 10) What is the mathematical relationship between G and K? 11) True or false: while water is the solvent for biochemical reactions, it seldom participates in such reactions. 12) In order to purify a protein, what must you absolutely have? 13) List 3 nonmetal elements that are abundant in living organisms. 14) For a generic weak acid HA, maximal buffering capacity: a) is at pH=7 b) Is a function of the concentration of the buffer c) Occurs when [H]=[A] d) Has no relationship to its pKa 15) What is the term used for the nonprotein components of conjugated proteins? 16) is the study of metabolite concentrations found in cells under different conditions. 17) Define amphipathic. 18) Which of the following statements regarding amino acids with nonionizable side chains is false: a) They are amphoteric b) They will buffer at both a low pH and a high pH c) They are referred to as "residues" after they are precipitated d) They are zwitterions at physiological pH 19) True or false: thermodynamically spontaneous reactions are always fast. 20) The hydrophobic effect is driven by an increase in the entropy of what? 21) SDS-PAGE separates proteins according to their. 22) Which of the following is not a distinguishing feature of living organisms: a) A low degree of chemical complexity b) Systems for extracting energy from the environment c) A capacity for precise self-replication d) A capacity to change over time by gradual evolution 23) Weak acids and bases only partially in solution. 24) Edman degradation is a technique for doing what? 25) inhibition occurs when the product of a pathway inhibits the catalytic activity of the first enzyme in the pathway. 26) What is unusual about the density of ice vs. that of water? 27) When two amino acids react to form a dipeptide, what is the other product of the reaction? 28) Homologous genes in different species are known as 29) True or false: the geometry of a hydrogen bond affects its strength 30) Which of the following would interact more tightly with an anion exchange column: a) Protein A: net charge =4 b) Protein B: net charge =2 c) Protein C: net charge =+3 d) Protein D: net charge =+1 31) If H for a process is +6kJ/mol and TS is +8kJ/mol, is the process thermodynamically spontaneous? 32) All other things being equal, which would be a better buffer: 0.1M acetic acid/acetate or 0.01M acetic acid/acetate? 33) Is this a D-amino acid or an L-amino acid