Exam 1: BIOS242/ BIOS 242 (Latest 2025/
2026 Update) Fundamentals of Microbiology | Qs & As| Grade A| 100% Correct (Verified Answers)- Chamberlain DNA is replicated in the ___ - ANSWER nucleus RNA is replicated in the ___ - ANSWER cytoplasm what is the first step in viral replication? - ANSWER penetration/adhesion (attaches to membrane using spikes) what is the second step in viral replication? - ANSWER uncoating what is the third step in viral replication? - ANSWER replication what is the fourth step in viral replication? - ANSWER assembly what is the fifth step in viral replication? - ANSWER maturation 1 / 3
what is the sixth step in viral replication? - ANSWER release (release the protein that has the viral components so it infects more cells) what are the four types of archaea? - ANSWER methanogens, hyperthemophile, psychrophile, halophiles what are characteristics of a methanogen? - ANSWER CO2 with methane where are methanogens found? - ANSWER swamps, landfill what are characteristics of a hyperthermophile? - ANSWER loves high temperature where are hyperthermophiles found? - ANSWER volcano what are characteristics of a psychrophile? - ANSWER survives in cold temperatures where are psychrophiles found? - ANSWER ice caps what are characteristics of a halophile? - ANSWER survives in salt environments 2 / 3
where are halophiles found? - ANSWER salt lake This type of archaea live in swamps and marshes and produce methane, what is it?
- ANSWER methanogen
- / 3
This type of archaea requires hot, acidic environments - ANSWER hyperthemophile during a gram stain, the presence of ____ gives a purple stain - ANSWER peptidolgycan why is gram negative bacteria pink? - ANSWER outer membrane is weakened what do gram negative bacteria have - ANSWER porin proteins, lipopolysaccharide-phospholipid outer membrane surrounding a thin peptidoglycan layer.what do gram positive bacteria have - ANSWER lipoteichoic acid with thick peptidoglycan cell wall what are the four different types of structures microorganisms can use for movement, adherence, or mating? - ANSWER fimbriae, pilus, flagella, and cilia