Microbiology: An introduction Chapter 13 (100% correct answers)

What was Wendell Stanley's contribution to virology? correct answers He was the first to isolate the TM virus. Viruses that only affect bacteria are called what? correct answers Bacteriophage. This man thought that diseases are caused by very small bacteria. correct answers Adolf Mayer. This man thought that diseases are caused by very small bacteria or bacterial toxin. correct answers Dmitri Ivanowski. This man determined that toxins do not cause disease and that the infectious particle must be reproducing. correct answers Martinus Beijernick. What did they think was causing the disease in tobacco plants? correct answers Bacteria. What are typical characteristics of viruses? correct answers -Most too small to be seen with a light microscope. -100 to 1,000 times smaller than cells they affect. -Obligate intracellular parasites. Most viruses are too small to be seen with a light microscope. What is the exception? correct answers The Mimivirus. It is 800 nm in size and is often mistaken for a bacteria. It can be seen with a light microscope and has proteins that have never been found on viruses before. Are all viruses too small to be seen with the naked eye? correct answers No. Most are, but not all. How are viruses classified? correct answers -Type of nucleic acid -Structure of nucleic acid (Single or double stranded) -Method of replication -Chemical characteristics -Physical characteristics. What are the major molecules that make up a naked virus? correct answers Proteins and nucleic acid. Nucleic acid core with an outer protein shell. What is the name of the protein coat? correct answers Capsid. What are the building blocks that make up a protein coat? correct answers Capsomeres.