7. Which of the following best summarizes the relationship b…

7. Which of the following best summarizes the relationship between dehydration reactions and hydrolysis? A) Dehydration reactions split water molecules and add hydroxyl groups to polymers, and hydrolysis reactions remove hydroxyl groups from polymers. B) Dehydration reactions assemble polymers, and hydrolysis reactions break down polymers. C) Dehydration reactions create monomers, and hydrolysis reactions assemble polymers. D) Dehydration reactions break down polymers, and hydrolysis reactions create monomers.

29. Which of the following was Charles Darwin’s most signifi…

29. Which of the following was Charles Darwin’s most significant original contribution to understanding both the unity and diversity of life? A) He documented examples of organisms that had evolved over time.B) He proposed a mechanism to explain the process of evolution. C) He explained the relationship between genes and evolution.D) He observed that individuals in a population generally displayed variation for a number of traits.E) He suggested that survival depends upon competition.

22. Protein serve multiple complex functions within biologic…

22. Protein serve multiple complex functions within biological systems. Which of the following is not  an essential function of proteins within an organism? A) Proteins serve as antibodies to fight foreign invaders B) Proteins serve as enzymes to catalyze chemical reactions C) Proteins serve as structural molecules in skin and muscles D) Proteins serve as the major component of the cell membrane of most organisms.

10. A nucleotide is composed of A) a nitrogenous base and a…

10. A nucleotide is composed of A) a nitrogenous base and a phosphate group. B) a nitrogenous base and a pentose sugar. C) a nitrogenous base, a phosphate group, and a pentose sugar. D) a nitrogenous base, a phosphate group, a pentose sugar, and an amino acid.

Interpretation of equations and numerical answers is another…

Interpretation of equations and numerical answers is another fundamentally important concept in this course.  Consider a to be a constant. In the hypothetical equation:  ,  Hint:  In answering these types of questions, you can always try plugging in simple numbers. If you want a calculator in aid in answering any of these questions, click the calculator icon on the far right of this question.