BIOS 242: EXAM 1 CHAMBERLAIN ACTUAL EXAM PREP 2026
150 QUESTIONS AND CORRECT DETAILED ANSWERS
ALREADY A GRADED WITH EXPERT FEEDBACK|NEW AND
REVISED
1. DNA is replicated in the : nucleus
2. RNA is replicated in the : cytoplasm
3. What is the first step in viral replication?: penetration/adhesion (attaches to membrane using spikes)
4. What is the second step in viral replication?: uncoating
5. What is the third step in viral replication?: replication
6. What is the fourth step in viral replication?: assembly
7. What is the fifth step in viral replication?: maturation
8. What is the sixth step in viral replication?: release (release the protein that has the viral components
so it infects more cells)
9. What are the four types of archaea?: methanogens, hyperthemophile, psychrophile, halophiles
10. What are characteristics of a methanogen?: CO2 with methane
11. Where are methanogens found?: swamps, landfill
12. What are characteristics of a hyperthermophile?: loves high temperature
13. Where are hyperthermophiles found?: volcano
14. What are characteristics of a psychrophile?: survives in cold temperatures
15. Where are psychrophiles found?: ice caps
16. What are characteristics of a halophile?: survives in salt environments
17. Where are halophiles found?: salt lake
18. This type of archaea live in swamps and marshes and produce methane, what is
it?: methanogen
19. This type of archaea requires hot, acidic environments: hyperthemophile
20. During a gram stain, the presence of gives a purple stain: peptidolgycan
21. Why is gram negative bacteria pink?: outer membrane is weakened
22. What do gram negative bacteria have: porin proteins, lipopolysaccharide-phospholipid outer membrane
surrounding a thin peptidoglycan layer.
23. What do gram positive bacteria have: lipoteichoic acid with thick peptidoglycan cell wall
24. What are the four different types of structures microorganisms can use for
movement, adherence, or mating?: fimbriae, pilus, flagella, and cilia
25. What is fimbriae used for?: adhesion
1/8
, 26. What is pilus used for?: mating/conjugation
27. What is flagella used for?: movement
2/8
150 QUESTIONS AND CORRECT DETAILED ANSWERS
ALREADY A GRADED WITH EXPERT FEEDBACK|NEW AND
REVISED
1. DNA is replicated in the : nucleus
2. RNA is replicated in the : cytoplasm
3. What is the first step in viral replication?: penetration/adhesion (attaches to membrane using spikes)
4. What is the second step in viral replication?: uncoating
5. What is the third step in viral replication?: replication
6. What is the fourth step in viral replication?: assembly
7. What is the fifth step in viral replication?: maturation
8. What is the sixth step in viral replication?: release (release the protein that has the viral components
so it infects more cells)
9. What are the four types of archaea?: methanogens, hyperthemophile, psychrophile, halophiles
10. What are characteristics of a methanogen?: CO2 with methane
11. Where are methanogens found?: swamps, landfill
12. What are characteristics of a hyperthermophile?: loves high temperature
13. Where are hyperthermophiles found?: volcano
14. What are characteristics of a psychrophile?: survives in cold temperatures
15. Where are psychrophiles found?: ice caps
16. What are characteristics of a halophile?: survives in salt environments
17. Where are halophiles found?: salt lake
18. This type of archaea live in swamps and marshes and produce methane, what is
it?: methanogen
19. This type of archaea requires hot, acidic environments: hyperthemophile
20. During a gram stain, the presence of gives a purple stain: peptidolgycan
21. Why is gram negative bacteria pink?: outer membrane is weakened
22. What do gram negative bacteria have: porin proteins, lipopolysaccharide-phospholipid outer membrane
surrounding a thin peptidoglycan layer.
23. What do gram positive bacteria have: lipoteichoic acid with thick peptidoglycan cell wall
24. What are the four different types of structures microorganisms can use for
movement, adherence, or mating?: fimbriae, pilus, flagella, and cilia
25. What is fimbriae used for?: adhesion
1/8
, 26. What is pilus used for?: mating/conjugation
27. What is flagella used for?: movement
2/8
