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Worksheets8.L.1-8.L.2
Total questions: 50
Worksheet time: 51mins
Devil facial tumor disease (DFTD) is a disease that is decimating the population of Tasmanian devils. The disease passes from one animal to another through bites and is caused by parasites. The parasites cause cancerous tumors that spread throughout an infected animal's body and kill it. What is the BEST description of DFTD?
a non-infectious, cell-cycle disease
an infectious, cell-cycle disease
a non-infectious, chronic disease
an infectious, chronic disease
Which sentence BEST describes a pandemic?
The disease causes high fever and vomiting.
The disease passes through direct contact with an infected person.
The disease is fatal if not treated immediately.
The disease has spread to every country in the Northern Hemisphere.
Which disease is correctly paired with the cause of the disease?
athlete’s foot - fungi
malaria - viruses
influenza - bacteria
pneumonia - protists
Ten people became sick with the flu after attending a school dance. What is the scenario that could best explain how the people got sick?
contact with environmental sources
contact with an infected animal
contact with a contaminated object
contact with an infected person
Which statement BEST explains why viruses can only reproduce within a host?
Viruses lack the genes necessary for transcription.
Viruses need the host to provide nutrients.
Viruses need the host cell to break down their cell membranes.
Viruses lack the ribosomes necessary to make their own proteins.
The symptoms of strep throat infection are a red and swollen throat. What is the MOST likely cause of strep throat?
eating raw vegetables
drinking lemonade
invading bacteria
running in cold weather
Which characteristic of bacteria makes it useful in producing medications?
Bacteria have spiral shapes.
Bacteria multiply very rapidly.
Bacteria are larger than viruses.
Bacteria are rod-shaped structures.
HIV is a retrovirus. Which sequence does it use as part of its reproductive cycle?
RNA → DNA → RNA → protein
protein → DNA → RNA → DNA
DNA → RNA → DNA → protein
RNA → protein → RNA → DNA
Malaria is a common disease in many countries. What is the cause of this disease?
a virus
a bacterium
a fungus
a parasite
Which structure does a virus have in common with a prokaryotic cell?
cell wall
nucleic acid
ribosome
capsid
If a microbe lacks the basic cellular structure to reproduce, how does it make copies of itself?
by creating new cells
by combining an egg and a sperm
by using the structures of the host cell
by dividing the nucleus to make two new microbes
The bacteria that causes bubonic plague is transmitted to humans by fleas. Which term best describes the role of the fleas in transmitting bubonic plague?
decomposer
parasite
pathogen
vector
Why do doctors suggest that people get a flu vaccine each year?
Viruses replicate more rapidly over time.
Viruses can mutate from year to year.
Vaccines are absorbed by the body after a year.
Vaccines get stronger over time.
A city has an outbreak of a disease that affects an unusually large portion of its population at the same time. Which term BEST describes the outbreak?
pandemic
plague
epidemic
infection
Which best explains how a virus infects its host?
The virus must fuse with the cells of the host organism.
The virus must circulate in the blood of the host organism.
Viral nucleic acids must enter the cells of the host organism.
Viral proteins must inactivate the proteins of the host organism.
Which a molecular process found only in retroviruses?
reverse translation
translation
reverse transcription
transcription
Which aspect of modern life could MOST likely cause an epidemic to turn into a pandemic?
vaccination
transportation
communication
sanitation
What virus structure is similar in function to a cell membrane?
protein shell
internal protein
tail sheath
end plate
Human Immunodeficiency Virus (HIV) infects the cells that coordinate the human immune response. When these cells are killed or compromised, the body cannot effectively protect itself from infection. Which cells does HIV infect?
natural killer T cells
regulatory T cells
cytotoxic T cells
helper T cells
Which of these diseases is caused by a bacterium?
rabies
influenza
strep throat
chicken pox
Why are viruses considered to be nonliving organisms?
They do not have genetic information.
They are not able to move on their own.
They do not interact with their environment.
They are not able to reproduce without a host cell.
Which of Pasteur’s discoveries was a direct result of information he gathered from his investigation of spontaneous generation?
Food spoilage is caused by airborne microorganisms
Microorganisms are responsible for fermentation in wine.
Parasites can transmit disease-causing organisms between hosts.
Weakened microorganisms can stimulate immunity without causing disease.
Which of these is MOST likely to be spread when two people drink from the same water bottle?
asthma
malaria
strep throat
hay fever
If the environment is favorable for bacterial growth, a bacteria cell may divide into 2 cells in 20 minutes. About how many bacterial cells would be present after three hours?
around 100
around 250
around 500
around 650
Millions of people living all over the world have cancer. Is cancer a pandemic?
No, because cancer is not contagious.
No, because cancer is not always fatal.
Yes, because millions of people have cancer.
Yes, because people all over the world have cancer.
Which would most likely increase the amount of money made from agriculture in North Carolina?
Tomatoes that are resistant to disease.
Tomatoes that are more expensive.
Tomatoes that taste the same.
Which of these careers would a student studying biotechnology most likely pursue?
electrical engineering
astronomy
agricultural research
geology
What type of science allows us to alter the DNA of a corn plant so that it will contain more protein?
biology
biotechnology
geology
physiology
Which is most important when investigating ethical issues in biotechnology?
cost of the technology
advantage of the technology
public opinion of the technology
benefits of the technology outweighing the harm
A number of projects in North Carolina biotechnology involve genomics. Which best describes genomics?
the study of anatomy and how the body functions
the study of biology and how energy flows in cells
the study of genes and how they function
the study of technology and how it works
Which is a potential ethical issue resulting from the use of biotechnology?
deteriorating the ozone layer
causing mass extinction of a species
increasing pollution of natural resources
introducing a genetically-altered species
Which best describes genetic modification?
It allows large quantities of medications to be produced.
It improves the removal of pollution from soil and water.
It is used to alter crops to become insect-resistant.
Which is an ethical issue surrounding the use of genetically modified foods?
cost of production
long-term health effects
ability to grow more nutritious foods
ability to produce a lot of food quickly
Which process describes how many pure-bred dogs have been produced?
cloning
crossbreeding
selective breeding
Biotechnology uses a procedure called genetic engineering. Which best describes genetic engineering?
making artificial DNA in the laboratory from chemicals
cutting out pieces of DNA from an organism under a microscope
adding DNA from one organism into the DNA of another organism
As biotechnology is used more often in food production for human consumption, people may only be able to purchase meat that has been injected with hormones. Which prediction is the most reasonable?
The hormones will be ingested by consumers and then used by their bodies.
People will stop eating commercially produced meat because they don’t like the taste of it.
Farmers will not want to raise hormone-injected animals because the process will be more expensive.
Food production will become a more time-consuming process because the hormones will slow down animal reproduction.
Residents of North Carolina presently burn 5 billion gallons of imported petroleum-based liquid fuel per year. How would the state’s economy be affected if North Carolina could produce biofuels locally as a replacement?
Tax revenues would decrease.
Unemployment would increase.
The economy would decline due to exports.
The economy would improve with new jobs and tax revenue.
Which career field is most closely related to biotechnology?
medicine
journalism
meteorology
political science
Tomatoes are genetically modified to have a longer shelf life, slowing the ripening and softening of the tomato. Which best describes a concern people have with eating genetically-modified tomatoes?
Genetically-modified tomatoes do not taste as good as regular tomatoes.
Genetically-modified tomatoes are more expensive than regular tomatoes.
The DNA used to modify the tomatoes could change the DNA of the person eating the tomato.
All states test infants for specific genetic diseases that can be treated early in life. Which would most likely be the result if newborn genetic screening were eliminated?
The human population would drastically decline.
The overall genetic health would drastically decline.
There would be an increase in the adult mortality rate.
There would be an increase in the infant mortality rate.
Which area of biotechnology would most likely create ethical issues within human society?
insulin production by bacteria
organ cloning for use in transplants
genetic engineering to improve agricultural yields
DNA and forensic testing of crime scene evidence
Which is a benefit of genetically modified foods?
The cost of research is included in the cost to the consumer.
The cost of food will decrease, and the quality of food will increase.
When foods are genetically modified, they no longer need to be studied.
When foods are genetically modified, they are completely resistant to disease and drought.
Which organisms are used to manufacture human insulin?
algae
amoebas
bacteria
protozoans
Which is a hypothesis a scientist could test using principles of biotechnology?
How long can a wheat plant live without water?
What are the effects of extreme cold on wheat plants?
Can wheat be genetically modified to be resistant to mold?
Which variety of wheat tastes best when made into pasta?
Which is a benefit of storing the genetic information of people who have previously committed a serious crime?
Offenders will be easier for potential victims to identify since their genetic information is on file.
Offenders can be genetically profiled to determine which type of crime they will commit in the future.
Offenders can be more easily identified by their genetic information if they commit a crime in the future.
Offenders can have their genetic information altered so that they are less likely to commit crimes in the future.
DNA analysis performed by a forensic scientist on blood found at a crime scene is compared to the DNA analysis of four suspects as shown below.
Which suspect was most likely present at the crime scene?
Suspect A
Suspect B
Suspect C
Suspect D
Genetic engineering has directly increased productivity in which U.S. industry?
agriculture
automobile
media
Bacteria cells can be used to produce insulin for the treatment of diabetes in humans. Which best explains how the bacteria cells are able to produce insulin for humans?
The bacteria have been grown on a petri dish containing insulin.
The bacteria have been genetically engineered to contain the DNA needed to produce insulin.
The bacteria have been exposed to radioactivity to create mutant strains capable of producing insulin.
The bacteria have been grown on a petri dish containing sugar; the bacteria produce insulin in response to the sugar.
Which is a career that would use microorganisms to remove pollutants from water?
medical specialist
DNA fingerprint specialist
Environmental Protection Agency specialist
Which molecule from humans is inserted into bacteria to cause them to produce insulin?
DNA
lipids
proteins
carbohydrates
