BIOD 171 FINAL QS&AS 2025

BIOD 171 FINAL QS&AS 2025 1. True/False. A virus is classified as a microbe.: True 2. True or False: The smallest biological unit of life is the molecule.: False -smallest unit of life is the cell. 3. At a generalized level, all cells are comprised of what?: Proteins, lipids, nucleic acids, and Polysaccharides 4. How many different types of amino acids are available from which to make proteins?: 20 5. How many amino acids are classified as being essential amino acids?: 9 6. What are the two major types of nucleic acids and their roles?: DNA (deoxyribonucleic acids): contains genetic material and hereditary info in living organisms, RNA (ribonucleic acid): decodes sequence of hereditary info that is found in DNA 7. Complete the following DNA strand, and indicate how many bonds are formed for each complementary pair: 3' GGTCATCG 5' 5' CC AGC 3': 3' GGTCATCG 5', 5' CCAGTAGC 3', 2 bonds between A & T, 3 bonds between C & G 8. The plasma membrane (select all that are true):: Restricts movement of materials in and out of the cell, Prevents essential nutrients from escaping