STRAIGHTERLINE MICROBIOLOGY 2024/2025 EXAM
QUESTIONS WITH 100% VERIFIED CORRECT ANSWERS
RATED A+
Cell walls are not typically possessed by ______. - Correct Answers protozoa The two major groups of helminths are the ______ and the ______. - Correct Answers roundworms; flatworms Which of the following is not true of conjugation?
- Involves direct contact between cells
- Transfers genes for drug resistance
- Transfers genes for enzymes and adherence molecules
- Involves the action of bacteriophage
- The donor retains a copy of the transferred genes - Correct Answers Involves the action of
- Envelope
- Capsomeres
- Capsid 1 / 2
bacteriophage Which of the following properties is likely to be found in a pioneer colonizer of a biofilm on an artificial joint implant? - Correct Answers 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) ______. - Correct Answers facultative anaerobe An organic nutrient that cannot be synthesized by the organism and must be provided is called a(n) ______. - Correct Answers 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? - Correct Answers Poliovirus, 30 nm Which of the following is not associated with every virus?
- Nucleic acid
- Genome - Correct Answers Envelope
- Cause human disease
- Lack a nucleus
- Cannot be seen without a microscope
- Contain genetic material
- Lack cell structure - Correct Answers Lack cell structure
- / 2
A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last Universal Common Ancestor would show Archaea - Correct Answers branching off the Domain Eukarya.During aerobic cellular respiration, the final electron acceptor is ______. - Correct Answers oxygen The endosymbiotic theory has been developed to explain the emergence of ______. - Correct Answers eukaryotes Which of the following is a unique characteristic of viruses that distinguishes them from the other major groups of microorganisms?
What type of mutation alters the base but not the amino acid being coded for? - Correct Answers Silent The eukaryotic cell organelle that most resembles a bacterial cell is the ______. - Correct Answers mitochondrion Koch's postulates are criteria used to establish that - Correct Answers specific microbe is the cause of a specific disease The study of evolutionary relationships among organisms is called ______. - Correct Answers phylogeny Starch is the primary storage food for all of the following except ______. - Correct Answers animals