Straighterline Microbiology 100% Accurate with Solutions

Straighterline Microbiology 100% Accurate with Solutions Cell walls are not typically possessed by ______. - Answer -protozoa The two major groups of helminths are the ______ and the ______. - Answer -roundworms; flatworms Which of the following is not true of conjugation? a. Involves direct contact between cells b. Transfers genes for drug resistance c. Transfers genes for enzymes and adherence molecules d. Involves the action of bacteriophage e. The donor retains a copy of the transferred genes - Answer -Involves the action of bacteriophage Which of the following properties is likely to be found in a pioneer colonizer of a biofilm on an artificial joint implant? - Answer -Surface structures for attaching to tissue A bacterium is inoculated into a tube of thioglycollate and incubated. After incubation, turbidity appears throughout, top to bottom, with the greatest turbidty at the very top. This bacterium would be called a(n) ______. - Answer -facultative anaerobe An organic nutrient that cannot be synthesized by the organism and must be provided is called a(n) ______. - Answer -growth factor Humans can see objects as small as 0.1 mm. Leeuwenhoek's best microscope could magnify objects to 300X. Which of the following would be invisible using Leeuwenhoek's microscope? - Answer -Poliovirus, 30 nm Which of the following is not associated with every virus? a. Envelope b. Capsomeres c. Capsid d. Nucleic acid e. Genome - Answer -Envelope