exam i - BIOL 1020: Principles of Biology I 1. Which of the...

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BIOL 1020: Principles of Biology Exam I 1. Which of the following is NOT usually found in a phospholipid: A. Fatty acid B. Glycerol C. Phosphate D. Sugar 2. Select the incorrect association. A. Hydroxyl - alcohol B. Carbonyl - aldehyde C. Carboxyl - acid D. Phosphate - thiol 3. Two substances with the same molecular formulas, but different structural formulas, are called: A. Inbred B. Isotopes C. Isomers D. Isotonic 4. Which of the following is NOT a characteristic of water? A. It is polar, and an excellent solvent B. It is adhesive, and tends to stick to other things C. It is non-polar, and an excellent solvent D. It is cohesive, and tends to stick to other water 5. A hypothesis is a(n)_______________. A. Proposed explanation B. Observation C. Conclusion D. Result 6. Which of the following is NOT correct about amino acids? A. Amino acids contain asymmetric carbon atoms. B. Amino acids contain an amino group and a carboxyl group fastened to an asymmetric carbon. C. Amino acids can make peptide bonds. D. There are over 30 kinds of individual amino acids found in the lipids of a cell. 7. α-helix or β-sheets structures of polypeptides best describe ______ level of protein structure? A. Primary B. Secondary C. Tertiary D. Quaternary 8. Carbon: A. Has 4 electrons in its outermost shell so it forms 4 chemical bonds. B. Prefers to give up 3 electrons to form ions. C. Has 2 electrons in its outer shell so it forms 2 chemical bonds. D. Is never found in inorganic molecules but always found in organic molecules. 9. Saturated fatty acids contain the maximum number of _____________atoms per molecule. A. Phosphorus B. Hydrogen C. Nitrogen D. Oxygen 10. Statement A. The molecular mass of a molecule can be obtained by adding the atomic masses of all of the atoms contained in the molecule. Statement B. One mole of any substance always contains Avogadro's number of units. A. Only statement A is true. C. Both statements A and B are true. B. Only statement B is true. D. Neither statement A nor statement B is true. 11. Acids: A. Are proton acceptors.
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exam i - BIOL 1020: Principles of Biology I 1. Which of the...

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