Biod 171 module 1 exam questions and answers

Biod 171 module 1 exam questions and answers True/False. A virus is considered a microorganism. - CORRECT ANS-False True or False: The smallest biological unit of life is the molecule. - CORRECT ANS-False At a generalized level, all cells are comprised of what? - CORRECT ANS-Macromolecules A student may also answer: Proteins, Lipids, Nucleic acids and Polysaccharides but they must answer with all four to be fully correct. Proteins are formed from various combinations of _______ of which there are ______ known forms. - CORRECT ANS-1. Amino acids 2. 20 How many amino acids are classified as being essential amino acids? - CORRECT ANS-9 The plasma membrane (select all that are true): A. Restricts movement of materials in and out of the cell B. Is often a triple layer comprised of lipids C. Prevents essential nutrients from escaping D. Contains hydrophobic tails pointing outward - CORRECT ANS-A;C Complete the following DNA strand, and indicate how many bonds are formed for each complementary pair: 3' GGTCATCG 5' 5' CC _____AGC 3' - CORRECT ANS-3' GGTCATCG 5' 5' CCAGTAGC 3' There are 2 bonds formed between A and T, and 3 bonds between G and C. True of False: The genetic material within a prokaryotic cell is contained within a membrane-enclosed region. - CORRECT ANS-False How many carbon atoms are present in the monosaccharide glucose? - CORRECT ANS-6 Describe the 4 basic bacterial morphologies. - CORRECT ANS-Coccus (round/spherical), bacillus (rod), vibrio (curved rod) or spirillum (spiral/corkscrew). True or False: Archaea, a eukaryotic class of microorganisms, is capable of surviving harsh environments. - CORRECT ANS-False Which