Biod 171 module 1 exam (Quizzes With Correct Ans) Already Passed!!

True/False. A virus is considered a microorganism. - Answer-False True or False: The smallest biological unit of life is the molecule. - Answer-False At a generalized level, all cells are comprised of what? - Answer-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. - Answer-1. Amino acids 2. 20 How many amino acids are classified as being essential amino acids? - Answer-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 - Answer-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' - Answer-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. - Answer-False How many carbon atoms are present in the monosaccharide glucose? - Answer-6 Describe the 4 basic bacterial morphologies. - Answer-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. - Answer-False Which of the following microorganisms are considered to be Eukarya? Select all that apply. Animalia Plantae Fungi Protista - Answer-All of them Microorganisms classified as _________ obtain most of their energy by converting light energy into chemical energy. - Answer-Plantae A defining characteristic of fungi is the presence of chitin in the cell walls. Which of following also contain chitin? Select all that apply. A. Mushrooms B. Bacteria C. Yeast D. Molds - Answer-A, C, D True or False: Protista retain a unicellular classification, as they are unable to form tissue layers. - Answer-TrueTrue of False. All multicellular microorganisms classified as Animalia are heterotrophic - Answer-True The function of the lysosome is (select all that apply): A. Lipid synthesis B. Protein synthesis C. To produce energy (ATP) D. Protein modification and distribution E. Waste disposal via hydrolytic enzymes - Answer-E