Bio 201 final exam study questions & Answers 100% SOLVED

Proteins are largely responsible for the traits of living organisms, while ________ provides the blueprint for the organization, development, and function of living things. - ANSWER-DNA What feature of genetic mutations can eventually lead to the evolution of new species? - ANSWER-Mutations produce changes in the DNA sequence of a gene. The complete genetic composition of an organism is called its - ANSWER-genome. A researcher decides to test the scientific validity of the common phrase "An apple a day keeps the doctor away." What would be a valid hypothesis to investigate this specific question? - ANSWER-The daily consumption of a single apple does not change the number of visits to the doctor. Tritiated hydrogen (3H) differs from hydrogen (1H) in that - ANSWER-) 3H has 2 more neutrons than 1H When one atom loses an electron to another atom, it results in the formation of - ANSWER-cations and anions that can form ionic bonds. What type of bonding is likely to occur between two water molecules or strands of DNA? - ANSWER-covalent Carbon and hydrogen have similar electronegativities and combine together to form hydrocarbon molecules. What type of bonds form between these atoms? - ANSWER-nonpolar covalent Amphipathic molecules - ANSWER-possess both hydrophilic and hydrophobic properties. If orange juice has a pH of 4, then it can be described as - ANSWER-an acidic solution The addition of a strong acid like HCl to an aqueous solution would result in - ANSWER-a decrease in pH Select the statement that is true when comparing solutions with a pH of 6 and a pH of 8. - ANSWER-The solution with a pH of 6 has a 100 times higher concentration of hydrogen ions than a solution with a pH of 8. A dehydration reaction - ANSWER-is used to form polymers Glycogen is to animal cells as ________ is to plant cells. - ANSWER-starch ______ is a polymer of glucose - ANSWER-Cellulose