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Other Sciences, Biology
8th
grade
Molecular Biology Practice Study Questions
66 questions
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- 1. Multiple ChoiceWhich best compares bacteria and viruses?Bacteria are smaller than viruses.Bacteria cause disease, but viruses do not.Bacteria are living organisms, but viruses are not.Bacteria have genetic material, but viruses do not.
- 2. Multiple ChoiceWhich best explains how a nonliving virus is able to reproduce?A virus becomes living when in contact with a host organism.A virus infects a host organism by injecting its DNA into the cells of the host organism.A virus infects a host organism by pulling the DNA from the cells of the host organism into itself.A virus becomes living when a sufficient number of viruses invade a host organism and cause an infection.
- 3. Multiple Choice
Which practice contributes to the antibiotic resistance of bacteria?
failing to cover open cuts
overusing antibiotics
completing an entire antibiotic prescription
storing medicine and antibiotic products improperly
- 4. Multiple ChoiceWhat is the main purpose of hand sanitizer?to promote viral contaminationto reduce the number of virus strandsto increase cell production on one’s handsto decrease the bacteria found on one’s hands
- 5. Multiple ChoiceWhich is the best way to prevent the spread of pathogens?Wear gloves while outside.Educate the public about disease transmission.Wash hands frequently with antibacterial soap.Stay at home during flu season whenever possible.
- 6. Multiple ChoiceWhich is most often used to destroy bacteria?fungusvitaminvaccineantibiotic
- 7. Multiple ChoiceHow are viruses different from most other microbes?They are nonliving.They can cause disease.They contain genetic material.They are only seen with a microscope.
- 8. Multiple ChoiceWhy 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.
- 9. Multiple ChoiceTen 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 sourcescontact with an infected animalcontact with a contaminated objectcontact with an infected person
- 10. Multiple ChoiceWhich helps humans to resist an infectious disease?heredityimmunitypathogens
- 11. Multiple ChoiceWhich best describes the size of a virus compared to the size of bacteria?Bacteria are small, while viruses are larger.Bacteria are large, while viruses are larger.Bacteria are small, while viruses are smaller.
- 12. Multiple ChoiceA student sorted a list of diseases and conditions into two groups.inherited conditions.infectious diseases.caused by environmental conditions.not treatable with medications.
- 13. Multiple ChoiceWhich best explains why antibiotics are ineffective in treating viral infections?Viruses destroy the antibiotic.Antibiotics only kill living cells.Antibiotics increase the rate of viral growth.Viruses escape antibiotics by hiding in cells.
- 14. Multiple ChoiceAlan noticed that his foot itched between his toes after coming home from the gym. He now believes he may have contracted athlete’s foot. What type of pathogen most likely caused this possible infection of his foot?bacteriumfungusvirus
- 15. Multiple ChoiceWhich product would be most effective in preventing the spread of a cold virus?hand soapmouthwashcough dropsantibiotic cream
- 16. Multiple ChoiceA 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?pandemicplagueepidemicinfection
- 17. Multiple ChoiceThe human immunodeficiency virus (HIV) causes AIDS. The first known human cases AIDS were in Africa in the late 1950s. Since then, tens of millions of people have died from the disease, and tens of millions more people all over the world are infected. Which term best describes the disease AIDS?isolated casesoutbreakepidemicpandemic
- 18. Multiple ChoiceWhich has had the greatest impact on preventing epidemics in the twenty-first century?immunizationsnew medicinesgood hygiene
- 19. Multiple ChoiceHow can the rate of an infectious disease be drastically reduced?by taking medication dailyby preventing transmission between peopleby wearing clean clothing dailyby performing dental hygiene three times each day
- 20. Multiple ChoiceWhich is the best way to help prevent the flu from becoming a pandemic?getting a vaccinationtaking antibioticseating fruits and vegetableswashing hands often
- 21. Multiple ChoiceWhich term refers to the spread of disease across a large region or sometimes worldwide?antibioticepidemicpandemicpathogenic
- 22. Multiple ChoiceWhich has made the possibility of an epidemic becoming a pandemic much more likely in the 21st century?increased deforestationincreased global travelincreased vaccinationsincreased air pollution
- 23. Multiple ChoiceHow are an epidemic and pandemic alike?Both involve a viral infection.Both involve a bacterial infection.Both involve an outbreak of a disease.Both involve small numbers of infected individuals.
- 24. Multiple Choice
Allowing ONLY individuals with the best characteristics to produce the next generation is ___
selective breeding
inbreeding
polyploidy
hybridization
radiation
- 25. Multiple Choiceusing living things or parts of living things to produce a product or solve a problembiotechnologytissue culturingbioremediationtransgenic
- 26. Multiple ChoiceNorth Carolina's #1 Biotech Industry isBiomedical ResearchEnvironmental BiotechnologyMaking ClonesAgriculture
- 27. Multiple Choicethe creation of genetically identical organismsBioremediationCloningGene TherapyTissue Culturing
- 28. Multiple ChoiceGMO stands forGenetically Made OrganismGrowing More OrganismsGenetically Modified OrganismGrowing Many Organisms
- 29. Multiple ChoiceAll of the following are advantages of GMO's exceptpest resistant cropsmore nutritional foodsunknown long term health effectscreating more human insulin
- 30. Multiple ChoiceUsing biotechnology to change the genetic makeup of an organism is calledTissue CulturingBiotechnologyCloningGenetic Engineering
- 31. Multiple Choice
Which does an organism need to undergo cellular respiration?
glucose and oxygen
water and sunlight
sunlight and oxygen
carbon dioxide and energy
- 32. Multiple Choice
Which statement about plants is accurate?
Plants use oxygen, carbon dioxide, and water to create food.
Plants use sunlight, water and carbon dioxide to create food.
Plants derive energy to grow from nutrients in the soil.
Plants derive energy to grow from water and nutrients.
- 33. Multiple Choice
How does food provide energy?
Food contains oxygen which cells convert into energy.
Food contains fiber which breaks down quickly into energy.
Food contains water which is used to store energy for later use.
Food contains sugar which is converted into energy through respiration.
- 34. Multiple Choice
Which lifestyle choice is best for good overall health?
eating a balanced diet and exercising twice per week
eating a balanced diet and exercising for at least 30 minutes per day
consuming only water and vitamins and exercising 10 minutes per day
consuming at least 4,000 calories per day and exercising at least 2 hours per day
- 35. Multiple ChoiceWhich combination of foods best provides a healthy and nutritious meal?steak, fries, orange juice, bananabaked potato, chicken nuggets, fruits, and orange juiceapple, grilled chicken sandwich, orange juice, and yogurtmacaroni and cheese, orange juice, ice cream, and pound cake
- 36. Multiple ChoiceWhich contributes most to obesity when consumed in excess?fatfiberwaterprotein
- 37. Multiple ChoiceWhich food contain a high amount of protein?Tomato and chicken saladEggs, fish, nuts, and cheeseApples, oranges, and grapesRice and beans
- 38. Multiple ChoiceAnother name for fats and oilsproteinssugarlipidsnucleic acids
- 39. Multiple ChoiceWhat is the function of nucleic acids?Stores energyStores genetic informationMovementPhysical structure
- 40. Multiple ChoiceWhat are the four macromolecules?proteins, nucleic acids, carbohydrates, and lipidsmonosaccharides, lipids, polysaccaharides, and proteinsRNA, DNA, proteins, and carbohydratesproteins, DNA, RNA, and steroids
- 41. Multiple ChoiceCarbohydrates are made of...C H OC H O NC H O N PC H O N S
- 42. Multiple ChoiceWhich of the following elements make up nucleic acids?C, H, OC, H, O, NC, H, O, N, PC, H, O, Ca, S
- 43. Multiple Choice"Storage tanks" Can hold food, water or waste for the cellRibosomesVacuoleChloroplastNucleolus
- 44. Multiple ChoiceWhat is the name of the structure shown in the diagram where cellular respiration takes place?ChloroplastMitochondrionNucleusVacuole
- 45. Multiple ChoiceDirects all cell activities through the DNA located there.LysosomesNucleusribosomesMitochondria
- 46. Multiple ChoiceThe site of photosynthesisribosomemitochondriachloroplastnucleus
- 47. Multiple ChoiceI am found in all cells. I am the outer most layer of an animal cell. What am I?cell wallnucleuscell membranecell skin
- 48. Multiple ChoiceWhich of the following is NOT found in all cells?Cell WallCell MembraneCytoplasmGenetic Material
- 49. Multiple ChoiceWhat organelle helps with cell digestion?LysosomesRibosomesGolgi ComplexER
- 50. Multiple ChoiceWhat are tiny organelles that convert glucose into ATP?RibosomesVesiclesCytoskeletonMitochondria
- 51. Multiple ChoiceA chemical compound made up of one or more simple sugar e.g. bread, rice, pastaProteinWaterFatCarbohydrates
- 52. Multiple ChoiceNutrients that build and repair tissues and cells e.g. meat, milk, eggs.FatMineralsVitaminsProtein
- 53. Multiple ChoiceEnergy storage nutrients that help the body store some vitamins e.g. oils, butter, margarineFatsCarbohydratesMineralsVitamins
- 54. Multiple ChoiceIllegal drugs are dangerous to your health. What do you think are some other common features of illegal drugs?a. affects function of brainb. can result in drug dependence and addictionc. can improve focus and concentrationa. both A and B
- 55. Multiple ChoiceA substance that changes how the mind or body works is a...?NicotineDrugOverdoseNone of the above
- 56. Multiple ChoiceWhich is a harmless form of tobacco?a. snuffb. chewing tobaccoc. spit tobaccod. None of the above
- 57. Multiple ChoiceWhy is alcohol considered a drug?Because it is bad for youBecause it is good for youBecause many people drink itBecause it changes a person's physical and emotional state
- 58. Multiple ChoiceDrinking and ____________ is especially dangerous!DancingDrivingWalkingTalking
- 59. Multiple ChoiceTylenol is an example ofprescription drugover the counter drugantibioticnarcotic
- 60. Multiple Choice_______________ is the constant need for and use of a drug, even though it is not medically necessary.Self-medicationMedicine misuseMedicine abuseAddiction
- 61. Multiple ChoiceWhich agricultural benefit can biotechnology provide?developing plants that are less dependent on the sun for energydeveloping plants that are less sensitive to variations in environmental temperaturesdeveloping plants with inheritable traits unrelated to the genetic material they containdeveloping plants that will not die
- 62. Multiple ChoiceWhich field would most likely NOT incorporate biotechnology?AgricultureGeneticsMedicineMining
- 63. Multiple ChoiceWhich of these is not a way in which biotechnology can benefit agriculture?increase crop populationreducing the loss of crops to insectsproducing better-tasting fruitsimproving farm machinery
- 64. Multiple ChoiceWhich of these would be a concern about the use of biotechnology?creation of new pathogensmaking of new vaccinesincreased opportunities for jobsincreased crop yield
- 65. Multiple Choice
Unlike prokaryotic cells, eukaryotic cells have their genetic material centrally located in a –
chloroplast.
vacuole
lysosome.
nucleus.
- 66. Multiple Choice
Several types of organisms are described in the following table. Which group is the group of prokaryotic organisms?
Group 1
Group 2
Group 3
Group 4
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