How are viruses and bacteria similar? They both: (select all that apply) are often beneficial to hosts have three main shapes: cocci (spherical), bacilli (rods), and spirilla (spirals) divide by binary fission inside hosts have an eclipse phase
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- Which of the following statements is TRUE concerning viral envelopes? Only viruses with envelopes have their contents enclosed by a layer containing lipids Only viruses without envelopes interact with receptor proteins on the surface of the host cell. Only viruses without envelopes can release their genetic material into the cytoplasm of the host. Only viruses with envelopes package their genetic material by engulfing it.Which cellular organelle or structure produces viral envelope?* OEndoplasmic reticulum. Free ribosomes O Nuclear envelope. Plasma membrane ) Nucleus.Arrange the following list into the correct sequence for viral reproduction: 1. penetration 2. assembly 3. replication 4. attachment 5. release (a) 1, 2, 3, 4, 5 (b) 5, 2, 3, 4, 1 (c) 4, 1, 3, 2, 5 (d) 4, 1, 2, 3, 5 (e) 3, 1, 2, 4, 5
- Figure 17.6 Influenza virus is packaged in a viral envelope, which fuses with the plasma membrane. This way, the virus can exit the host cell without killing it. What advantage does the virus gain by keeping the host cell alive?Viruses are obligate intracellular parasites. Rubella is also known as Exanthem subitum * FIRST statement is TRUE; SECOND statement is FALSE BOTH Statements are TRUE FIRST statement is FALSE; SECOND statement is TRUE BOTH statements are FALSE- Mycoplasma MICROBIO-VIROLOGY advanced have gram positive cell walls are cells with prokaryotic organization are bacteria typically found in contaminated soils. can have intracellular replication. cause skin infections. - Which of the following amino acids has a hydrophobic side chain? BIOCHEMISTRY basic Methionine Glutamine Lysine Serine Glutamic acid - Which of the following is true regarding viruses? MICROBIO-VIROLOGY basic Released viral particles during cell lysis or budding arecalled virions. Viruses have a protein capsid and an envelope. Viruses are obligate intracellular parasites. Virus genome can be DNA, RNA, single or double stranded. Outside the host, viruses are inactivated within 24 hours. - On the respiratory system what are the correct statements? PHYSIOLOGY basic Partial pressure of carbon dioxide (pCO2) is higher in alveoli than in atmospheric air. Surfactant reduces surface tension within the alveoli Elastic recoil of the lungs…
- Which of the following is true about capsid? There could be more than one answer. Present in both enveloped and naked virus. Composed of individual protein molecules called capsomeresiral nucleic acid. Houses the viral nucleic acid. Capable of self-assembly. Not present in coronavirusMatch the terms 1Genome surrounded by a protein coat 2Functional viral particle capable to infect a new host cell 3Infectious protein 4Infectious agent that needs helper virus for infection 5T4 enzyme that creates holes in the E. coli plasma membrane 6When a temperate phage stimulates their bacterial host tostart producing a toxin (e.g. cholera, shiga) 7Virus that infects bacteria 8Hand N spikes 9Virus without an envelope 10Most common and best studies virulent phage of E. coli 11Protein coat that surrounds viral genome 12:true or false : some viruses can cause cancer [ Choose ] lambda True pathogenic stimulation False Nucleocapsid lysosome Naked virus induction lysozyme Flu viruses tobacco mosaic virus lysogeny capsid Lysogenic conversion Holin Prion satellite bacteriophage (or just phage) T4 Virion StreptococcusClear select Which of the following statements concerning viruses and human health is 1 false? O in many diseases caused by viruses, the virus attacks cells as it reproduces O many viral diseases can be controlled through vaccinations O some viruses can remain dormant in the body for years before disease symptoms appear O most viral infections are difficult to treat, but they can be finally destroyed by antibiotics
- Which of the following is a similarity between viruses of bacteria (bacteriophages) and viruses of algae? These viruses will enter host cells by membrane fusion. They infect host cells by injecting nucleic acid (i.e., capsid does not enter cell) After replication in a host cell, the newly-assembled viruses will exit the cell by budding. These viruses are taken into host cells by phagocytosis.Which one of the following is not true for virus, obligate intracellular parasites? Viruses cannot generate energy outside of cells Viruses cannot synthesize proteins outside of cells Enveloped viruses require host cell membrane to obtain their envelopes Viruses must degrade host cell DNA in order to obtain nucleotidesO t of Match the type of pathogen with the correct description. Prions Virus Protozoans Bacteria and parasitic worms Choose... Choose... Can be treated with drugs that prevent it from synthesizing proteins Misfolded version of a harmless protein that will cause host cells to produce misshapen proteins May cause damage by releasing a toxin into the bloodstream Can only replicate when it is inside of a host cell Choose... Fi
