Name: /92 Grade: Microbe Mission regionals test Part A: Microscopy Label all parts. (1 pt each) 15. You are looking at a sample of euglena through a microscope with the x10 objective lens. One specimen fits across the field of view 10 times. If your original field of view is 8 cm, calculate the size of the specimen (in micrometers) (6 pts)
Part B. Multiple Choice. Choose the best answer (2 pts each) 16. You discover a new Microbe! When testing its cell wall, you find that it contains nitrogen. This microbe is most likely related to... (a) plants (b) fungi (c) bacteria (d) a or b (e) b or c 17. While playing in the woods, Andy Gu was bitten by a tick, and is now showing symptoms of sickness. What disease did he contract and what is the best way to deal with it? (a) Thrush, anti-fungals (b) Lyme Disease, oral re-hydration therapy (c) Cholera, oral re-hydation therapy (d) Lyme Disease, antibiotics (e) nothing, he will surely die 18. The protist that plays an important role in the fossil record is the: (a) amoeba (b) foram (c) diatom (d) green algae (e) red algae 19. The process where bacteria directly exchange genetic information is known as: (a) transformation (b) transduction (c) subjugation (d) conjugation (e) translation
20. The Chicken Pox virus can appear again decades later as shingles. Which processes are matched correctly? (a) Chicken pox: lytic cycle Shingles: lysogenic cycle (b) Shingles: lytic cycle, Chicken pox: lysonic cycle (c) Shingles: reverse transcription, Chicken pox: endospore (d) Chicken pox: reverse transcription, Shingles: endospore (e) none of the above 21. This protist is known for its double flagella and its role in the red tide. (a) Euglena (b) dinoflagellates (c) forams (d) diatoms (e) radiolarans 22. Some deep seas archaea are... (a) Photoautotrophs: They get energy from light and carbon from inorganic molecules (b) Photoheterotrophs: They get energy from light and carbon from organic molecules (c) Chemoautotrophs: They get energy from chemical reactions and carbon from organic molecules (d) Photoautotrophs: They get energy from chemical reactions and carbon from inorganic molecules (e) Chemoautotrophs: They get energy from chemical reactions and carbon from inorganic molecules 23. Penicillin functions by: (a) Preventing bacteria from reproducing by inhibiting DNA replication (b) Marking bacteria with antibodies (c) Preventing the production of key proteins present in the peptidoglycan cell walls (d) Breaking apart the phospholipid bilayers of bacterial membranes (e) spawning super bacterial fighting ninjas 24. Evidence justifying endosymbiotic theory includes: (a) mitochondria and plastids are about the same size as bacteria (b) mitochondria and plastids divide by binary fission, instead of mitosis with the rest of the cell (c) mitochondria and plastids have their own DNA
(d) all of the above (e) only a and c 25. Which is a characteristic of secondary endosymbiosis? (a) Multiple plastids within a single cell (b) appearance of more than two membranes on a plastid (c) a plastid that seems to have more than one set of DNA (d) The disappearance of a membrane that usually surrounds a plastid (e) there is no difference from primary endosymbiosis 26. Which of the following is NOT a product of Lactobacilius (a) Yogurt (b) Sauerkraut (c) Cheese (d) Kimchi (e) Bread 27. Which is correctly ordered from smallest to largest (a) bacteria, viruses, yeast, protists, prions (b) prions, viruses, bacteria, yeast protists (c) protists, yeast, bacteria, prions, viruses (d) prions, bacteria, viruses, yeast, protists (e) prions, protists, bacteria, yeast, viruses 28. Which of the following protists lack true mitochondria? (a) Diplomonads and Parabasalids (b) Euglenozoans and Alveolates (c) Stramenopiles and Alveolates (d) Diplomonads and Euglenozoans (e) Stramenopiles and Parabasalids 29. The overuse of penicillin and other antibiotics is dangerous because: (a) We are in short supply of such vital substances (b) They can be beneficial to bacteria if use is prolonged (c) It increases the likelihood that bacteria will develop an immunity to these antibiotics (d) bacteria will become conditioned to withstand the antibiotics (e) the loss of bacteria will throw off the balance in the food chain
Part C. Short answers 1. Identify the diagram below and the organisms present. Describe the relationship between the two organisms and the roles that each play. (10 pts) 2. Describe the differences between a phage virus, and a retro virus (HIV), including the mechanisms of reproduction for each type. Draw a diagram of each to help your explanation. (10 pts) 3. A farmer discovers that a bacterial disease has infected his plants. His friend suggests using an antibacterial that kills all bacteria in the plant without harming it. Is this a good idea? Why or why not? (6 pts)
Part D: Diseases Match each disease with the correct type of pathogen (2 pts each) (extra-credit can be earned for naming symptoms) A:Virus B:Bacteria C: Protist D: Fungus E: Prion 1. Ringworm 2. Whooping Cough 3. Common Cold 4. Tetanus 5. Malaria 6. Measles 7. West Nile Fever 8. Mad Cow disease 9. Meningitus 10. Athlete's foot