BIOD 171.Microbio exam answers

1. A virus is classified as a microbe.True. Although viruses are not living and as such are not considered microorganisms, they can, however, be classified as microbes, a more general term that includes microorganisms and viruses.

2. True or False: The smallest biological unit of life is the molecule.False. The smallest biological unit of life is the cell.

3. What are the 4 main types of macromolecules found in cells?Proteins, Lipids, Nucleic acids and Polysaccharide

1. Proteins are formed from various combinations of                     of which there are          known forms.Amino acids, 20

2. How many amino acids are classified as being essential amino acids?9

1. What are the two major types of nucleic acids and their roles?There are two major types of nucleic acids: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). Nucleic acids are chemical molecules that carry genetic information within the cell. DNA contains a vast amount of hereditary information and is responsible for the inheritable characteristics of living organisms. RNA is responsible for deciphering the hereditary information in DNA and using it to synthesize proteins.

1. Complete the following RNA strand and indicate how many bonds are formed for each