Bacteria & Viruses Quiz
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The graph represents the results of an investigation of the growth of three identical bacterial cultures incubated at different temperatures. Which inference can be made from this graph?
A. Temperature is unrelated to the reproductive rate of bacteria
B. Bacteria cannot grow at a temperature of 5°C.
C. Life activities in bacteria slow down at high temperatures.
D. Refrigeration will most likely slow the growth of these bacteria.
Live bacteria are found in milk, cheese and yogurt
A. TRUE
B. FALSE
What does invading the host cell enable the virus to do?
A. increase its size
B. synthesize needed oxygen
C. obtain nutrients
D. reproduce
The picture below illustrates one internal part of the body’s immune system. What process is illustrated in the picture?
A. a skin cell destroying germs.
B. inflammation near an opened wound
C. a white blood cell destroying pathogens
D. mucus in the lungs destroying pathogens
Anything that triggers an immune response is a/n
A. lymph cell
B. antigen
C. antibody
D. neutrop
All bacteria are
A. unicellular
B. multicellular
C. eukaryotic
Name this bacteria shape
A. coccus
B. spirillum
C. bacillus
Which statement about bacteria is true?
A. Bacteria help you breathe
B. Bacteria help you digest your food
C. Bacteria help add carbon dioxide to the atmosphere
D. All bacteria need sunlight to make food
How would you describe the size of a virus?
A. Smaller than bacteria
B. Larger than a parasite
C. About the size of a dime
D. Smaller than a proton
Which is bigger, a bacterium or a virus?
A. Bacteria
B. Virus
What is gene therapy?
A. Inserting copies of a healthy gene directly into cells with a mutated gene
B. Producing organisms with identical copies of DNA
C. Crossing two individuals that have similar desirable characteristics or traits
D. Crossing two individuals that have different characteristics or traits
Which viral life cycle allows viral genetic material to lay dormant while the host cell reproduces?
A. lytic
B. mitosis
C. lysogenic
D. S phase
Which of the following can challenge the immune system?
A. Allergies
B. Antibodies
C. Vaccines
D. Macrophage
True or False: Some types of bacteria eat and clean up oil spills
A. TRUE
B. FALSE
If scientists engineer the DNA of tomatoes to make them survive in cold temperatures, what do those tomatoes become?
A. Human Genome Project
B. Genetically Modified Organisms
C. Punnett Squares
D. Gene Therapy
Out of t-cells and b-cells which is the helper cell?
A. b-cells
B. t-cells
C. neither
D. both
What does a virus have on the inside?
A. DNA, but never RNA
B. RNA but never DNA
C. DNA or RNA
D. neither DNA or RNA
Bacteria are prokaryotes which means they
A. have a nucleus on their capsule
B. do not contain a nucleus
C. can live in environments with and without oxygen
Name this bacteria shape
A. coccus
B. bacillus
C. spirillum
How do bacteria move?
A. flagella
B. cilia
C. they don’t
Bacteria cells share which of the following organelles in common with plant and animal cells?
A. cell membrane, RER
B. cell wall, mitochondria
C. nucleus, ribosomes
D. ribosomes, cytoplasm
What happens after the second time you are exposed to a pathogen?
A. The body will not be able to fight off the pathogen quickly, because it knows how to get into the body easier.
B. The body’s immune system will react the same was as it did during the first exposure.
C. The body can only be exposed to a pathogen a second time if you do not have a vaccine.
D. The body will know how to fight off the pathogen quickly, because memory cells have been created after the first encounter.
What is the last step in the viral reproduction cycle?
A. A virus attaches to the surface of a host cell
B. The proteins and genetic material start to assemble in the cell
C. The host cell bursts open, releasing the new viruses
D. The virus injects its genetic material into the cell
A DNA molecule produced by combining DNA from different sources is called?
A. Mutant DNA
B. Polyploid DNA
C. Diploid DNA
D. Recombinant DNA
Which BEST compares bacteria and viruses?
A. bacteria are smaller than viruses
B. bacteria cause disease, but viruses do not
C. bacteria are living organisms, but viruses are not
D. bacteria have genetic material, but viruses do not
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