Unit Review Clicker ?’s (Answer Key @ end of ?’s)
1) Which is true of Prokaryotic cells?
A Prokaryotic cells have membrane-bound organelles.
B Prokaryotic cells do not have a nuclear membrane.
C Prokaryotic cells have a nuclear membrane.
D Prokaryotic cells divide by mitosis.
2) The Archaea bacteria formed about ________ years ago.
A 35 billion
B 2.0 billion
C 3.5 billion
D 6.5 billion
3) What is true of Eubacteria and Archaebacteria?
A They have a common ancestor.
B Both Gram Stain well.
C They both live in extreme environments.
D Both bacteria are true bacteria.
4) What type of bacteria produce CH4 gas as a product of respiration?
A Thermophiles
B Hydrophiles
C Halophiles
D Methanogens
5) Eu- means ________.
A green
B true
C membrane-bound
D harmful
6) Archaea bacteria is ________ bacteria.
A membrane-bound
B green
C true
D ancient
7) How can we use a bacterial cell membrane?
A To increase the pathogenicity of the bacteria.
B Protein synthesis.
C To support and protect the cell.
D To help us identify the bacteria.
8) How are flagella used in bacteria?
A Adhesion to surfaces.
B Locomotion.
C Transfer of genetic material .
D Attachment to host.
9) What are the most common (the ones you should know) shapes for bacteria?
A Coccus, spirillum, and vibrio.
B Spirillum, coccobacillus, and spirochete.
C Bacillus, coccus, and spirochete.
D Spirillum, coccus and bacillus.
10) How are bacterial groupings determined?
A By the plane in which the bacteria divide.
B By the number of bacteria in a chain or cluster.
C By the shape of bacteria.
D By the rate at which the groups are formed.
11) In this common type of bacterial reproduction, the bacteria splits into two new
bacteria.
A Binary Fission
B Conjugation
C Endospore formation
D Bacterial Fission
12) What type of bacterial structure mediates conjugation?
A Cilia
B Flagella
C Fimbrae
D Pili
13) Which of the following is NOT a source of nutrients or energy for bacteria?
A Chemicals
B Carbon
C Sunlight
D Inorganic matter
14) What are the four factors that influence bacterial growth?
A Temperature, pH, oxygen, moisture
B Moisture, pH, carbon dioxide, temperature
C pH, oxygen, sunlight, moisture
D Oxygen, temperature, pH, sunlight
15) What is sterilization?
A Removal of most microbes.
B Microbes are removed to a safe, public-health level.
C The process to delay spoilage of consumable goods.
D The destruction of all microorganisms.
16) What is an antibiotic?
A Something that fights an antigen
B Substance produced by microorganisms that in small amounts inhibits another
microorganism.
C Substance usually produced naturally by a virus.
D A substance that fights off only viruses.
17) What is the function of the Immune System?
A To filter lymph before it returns to the blood.
B To recover fluid from the body tissues.
C To neutralize or destroy all things "non-self".
D To produce T-cells.
18) What are the two types of body defense?
A Immune and non-specific.
B Specific and immune.
C Specific and non-specific.
D Non-pathogenic and specific.
19) What is the first line of defense against a pathogen?
A Hair
B Mucus membrane
C Cilia
D Skin
20) What are the two cell types associated with the non-specific defense?
A Leukocytes & Antibodies.
B Phagocytes & Leukocytes.
C Leukocytes & Erythrocytes.
D Phagocytes & Interferons.
21) What is the function of a macrophage (phagocyte) and where do they reside?
A Produce T-cells, thymus
B Engulf or "eat" foreign debris, blood stream
C Recover fluid from body tissues, blood stream
D Engulf or "eat" foreign debris, lymph organs
22) What is the function of a Leukocyte?
A To bind to an invader, release chemicals, causing the foreign cell to lyse.
B Engulf or "eat" foreign debris.
C Produce T-cells.
D Police the blood and lymph.
23) A local defense response to tissue injury is known as ________.
A Pain
B Fever
C Inflammation
D Infection
24) Interferons are ______ that help non-infected cells make ______ that block ______
synthesis.
A viral proteins, proteins, ant-viral protein
B anti-viral proteins, viral proteins, protein
C anti-viral proteins, proteins, viral protein
D viral proteins, anti-viral proteins, protein
25) Our ability to ward off a specific infection or disease is known as:
A A good thing.
B Immunity.
C Resistance.
D Non-specific defense.
26) When you are injected with antibodies produced from another organism, you will most
likely develop a(n) ________ immunity.
A Passive
B Active
C Non-specific
D Cell-mediated
27) What type of immunity is a natural response to an antigen?
A Non-specific
B Passive
C Cell-mediated
D Active
28) Gram Staining is what type of a stain?
A Developmental
B Differential
C Distinguishable
D Detrimental
29) Why do we stain specimens?
A Because it is more fun to look at stained cells.
B So that we can see them under UV light.
C To help us better view a cell's structure.
D So that we can make them purple.
30) List the different steps in the Gram Staining procedure, in order:
A Heat fix specimen, Crystal Violet, Iodine, Decolorizer, Safranin.
B Crystal Violet, Heat fix specimen, Safranin, Decolorizer, Iodine.
C Heat fix specimen, Crystal Violet, Iodine, Safranin, Decolorizer.
D Crystal Violet, Decolorizer, Iodine, Heat fix specimen, Safranin.
31) TB is an immune disease that largely affects the ________ and causes ________.
A throat, an ongoing cough and night sweats.
B lungs, weight gain and ongoing cough.
C lungs, an ongoing cough and blood sputum.
D liver, bloody sputum and weight loss.
32) DF (Dengue Fever) is an arbovirus, which is a what?
A Mosquito only virus.
B Arthropod-Borne virus
C Human-borne, arthropod spread.
D Human only virus.
33) What is a foodborne illness?
A Illness caused by eating microorganism-contaminated food.
B Any toxin, living organism, or other agent that can cause disease.
C Illness caused by consuming any type of raw food.
D Any type of chemical produced by a microorganism.
34) If you are dehydrated, have abdominal cramps, severe diarrhea, and are vomiting, it is
likely that you have contracted ________.
A Avian Influenza
B Mumps
C Food poisoning from E. coli
D West Nile Virus
Answer Key: Unit Review
1. B
2. C
3. A
4. D
5. B
6. D
7. D
8. B
9. D
10. A
11. A
12. D
13. D
14. A
15. D
16. B
17. C
18. C
19. D
20. B
21. D
22. A
23. C
24. C
25. B
26. A
27. D
28. B
29. C
30. A
31. C
32. B
33. A
34. C