ALL EXAMS SOLUTION 100% CORRECT BIOD 171 ALL EXAMS/ MODULE 1-5 (GRADED A+) Questions and Answers- Portage Learning

ALL EXAMS SOLUTION 100% CORRECT BIOD 171 ALL EXAMS/ MODULE 1-5 (GRADED A+) Questions and Answers- Portage Learning Microbiology is the study of what? - Answers My answer: Microbiology is the study of microorganisms and their biological processes at what is called the "micro" or "microscopic" level. Answer Key: Microbiology is the study of microbes (microorganisms and viruses) and their biological processes. What is the smallest biological unit of life? - Answers the cell What is a macromolecule? - Answers My answer: Macromolecules are large and complicated molecules that are made up of smaller molecules. Examples of macromolecules are polysaccharides, lipids, nucleic acids, and proteins. More info: - Proteins are made up of amino acids (of which there are 20 different types). - Nucleic Acids can be either DNA or RNA. Nucleic acids are made up of nucleotides. For DNA, the nucleotides are adenine (A), guanine (G), cytosine (C) and thymine (T). For RNA, the nucleotides are adenine (A), guanine (G), cytosine (C) and uracil (U). - Lipids are made up of hydrocarbons. - Polysaccharides are made up of monosaccharides. Answer Key: A macromolecule is classified as a complex molecule that is composed from smaller subunits. What are the four main types of macromolecules? - Answers My answer: polysaccharides, lipids, nucleic acids, proteins Answer Key: Proteins, nucleic acids, lipids and polysaccharides What various functions do proteins have in a cell? - Answers My Answer: Proteins have several functions in the cell; 1. To assist materials in moving in and out of the cell 2. To act as a catalyst enzyme which speeds up a biochemical process 3. To provide structure in the cell 4. To enable movement (e.g. filaments)