BIOD 101 FINAL exam questions and verified correct answers 2024

a. Name the three parts of a nucleic acid nucleotide. b. What are the particular types of each of these that are found in DNA and what are the corresponding types that are found in RNA? - correct answer a. sugar, phosphate group, nitrogenous base b. DNA- deoxyribose- phosphate group- adenine, guanine, cytosine, thymine RNA- ribose -phosphate group- adenine, guanine, cytosine, uracil What are the four major differences btw DNA and RNA? - correct answer 1. DNA contains deoxyribose - RNA is ribose 2. DNA: thymine RNA: uracil 3. DNA: double stranded helix RNA: single strand DNA is often described as a coiled ladder. In this description, what two parts of a DNA nucleotide form the uprights? What part forms the rungs? - correct answer The uprights are the sugar phosphate backbone, and the rungs are the bases. Explain the 2 differences btw hydrolysis and dehydration condensation. - correct answer During dehydration condensation biomacromolecules are synthesized by joining building block monomers. A water molecule is lost and energy is used. Biomacromolecules are broken down into monomers during hydrolysis when a water molecule is added and energy is released. Tell whether each of the following is carbohydrate, lipid, protein, or nucleic acid. Then explain the use of each. GLUCOSE - correct answer Carbohydrate; used as fuel, is referred to as blood sugar in humans and animals