considered Darwin development theory of evidence selection Comparative anatomy Biogeography The fossil record Comparative embryology Comparative biochemistry When water is mixed with a salt in a beaker, the salt would be considered: The solvent The solute Solution Buffer Ion An unknown solution is tested and the resulting pH is 8.2. What conclusion can be made from this observation? The solution is neutral The solution is an acid The solution is a buffer The solution is ionic The solution is a base Molecules which speed up chemical reactions in cells are called: Vitamins Minerals Carbohydrates Enzymes Lipids A chemist is studying organic molecules in her lab. Which of the following molecules would she be least interested in studying? Carbohydrates Proteins Water Nucleic acids Lipids Because carbon only has four electrons in its outer shell, carbon must: Gain four electrons to complete its outer shell Lose four electrons to become stable Share four electrons to complete its outer shell Share two electrons to complete its outer shell Gain or lose two electrons depending on what it is bonding with A chemist is in the lab studying a large organic molecule with many subunits. Which of the following terms would best describe the molecule that he or she is studying? Monomer Isomer Polymer Hydromer Hydrophilic If 0.9% NaCl were isotonic to a cell, then: 0.9% would also be hypotonic 0.9% would also be hypertonic 1.0% would also be hypertonic 1.0% would also be hypotonic The subunit of RNA and DNA are referred to as: Nucleotides Amino acids Phospholipids Monosaccharides Phosphate groups If a strand DNA molecule has the base sequence of ACGTCA, what would the RNA complement be? UGCAGU TGCAGT ACGTCA UGACGU UCGACU Which of the following is true of ATP? It is very stable It has a base of adenine, the sugar ribose, and three phosphate groups It has a base of adenine, the sugar deoxyribose, and three phosphate groups It is used for long term energy storage It has a base of adenine, the sugar ribose, and two phosphate groups