Biology EOCT Practice Questions Part I

1. Biology EOCT Practice QuestionsPart I Milton High School

2. Glucose is a simple sugar that is broken down for the release of energy during cellular respiration. The formula for glucose is C6H12O6. To which class of organic macromolecules does glucose belong? Carbohydrates Proteins Lipids Nucleic acids

3. Glucose is a simple sugar that is broken down for the release of energy during cellular respiration. The formula for glucose is C6H12O6. To which class of organic macromolecules does glucose belong? Carbohydrates Proteins Lipids Nucleic acids

4. The function of the mitochondria in cells is to Produce energy Synthesize DNA Support ribosomes Modify proteins

5. The function of the mitochondria in cells is to Produce energy Synthesize DNA Support ribosomes Modify proteins

6. The diagram shows a basic food chain in an ecosystem. The box on the far right demonstrates energy flow out of the ecosystem. Which of the following is the most likely cause of energy leaving the ecosystem? Immigration Photosynthesis Respiration Competition E N E R G Y

7. The diagram shows a basic food chain in an ecosystem. The box on the far right demonstrates energy flow out of the ecosystem. Which of the following is the most likely cause of energy leaving the ecosystem? Immigration Photosynthesis Cellular Respiration Competition E N E R G Y

8. Which types of organic molecules serve as the building blocks of living things and form when amino acids are joined by a peptide bond? Proteins Fatty acids Nucleic acids Carbohydrates

9. Which types of organic molecules serve as the building blocks of living things and form when amino acids are joined by a peptide bond? Proteins Fatty acids Nucleic acids Carbohydrates

10. In pea plants, the allele for green pods is (G) is dominant over the allele for yellow pods (g). If a pea plant has yellow pods, what is its genotype? GG Gg gg Gy

11. In pea plants, the allele for green pods is (G) is dominant over the allele for yellow pods (g). If a pea plant has yellow pods, what is its genotype? GG Gg gg Gy

12. Which of the following can cause a mutation? Spontaneous error during replication Ultraviolet radiation Swimming in polluted water I only II only I and II only I, II, and III

13. Which of the following can cause a mutation? Spontaneous error during replication Ultraviolet radiation Swimming in polluted water I only II only I and II only I, II, and III

14. Ticks obtain nourishment by feeding on the blood of mammals such as mice and squirrels. Although ticks do not kill the animal upon which they feed, they can weaken the animal. What type of relationship do a tick and the animal upon which it feeds illustrate? Mutualism Commensalism Competition Parasitism

15. Ticks obtain nourishment by feeding on the blood of mammals such as mice and squirrels. Although ticks do not kill the animal upon which they feed, they can weaken the animal. What type of relationship do a tick and the animal upon which it feeds illustrate? Mutualism Commensalism Competition Parasitism

16. Bromeliads are epiphytes that live attached the high branches of trees. Living high up in the trees provide the bromeliads better access to water and sunlight. The tree receives no benefit from the relationship and is not harmed. What type of ecosystem interaction do the bromeliads and the trees exhibit? Mutualism Commensalism Competition Parasitism

17. Bromeliads are epiphytes that live attached the high branches of trees. Living high up in the trees provide the bromeliads better access to water and sunlight. The tree receives no benefit from the relationship and is not harmed. What type of ecosystem interaction do the bromeliads and the trees exhibit? Mutualism Commensalism Competition Parasitism

18. A lichen is formed by a relationship between a fungus and a green alga. The fungus anchors the lichen and protects the alga from direct sunlight and extreme temperature fluctuations. The green alga performs photosynthesis, providing food for itself and the fungus. What type of symbiotic relationship does a lichen illustrate? Mutualism Commensalism Competition Predation

19. A lichen is formed by a relationship between a fungus and a green alga. The fungus anchors the lichen and protects the alga from direct sunlight and extreme temperature fluctuations. The green alga performs photosynthesis, providing food for itself and the fungus. What type of symbiotic relationship does a lichen illustrate? Mutualism Commensalism Competition Predation

20. Which cell component may be present in a eukaryotic cell, but not in a prokaryotic cell? Cell wall Cell membrane Nucleus Cytoplasm

21. Which cell component may be present in a eukaryotic cell, but not in a prokaryotic cell? Cell wall Cell membrane Nucleus Cytoplasm

22. Lice, fleas, ticks, and bedbugs are organisms that frequently obtain nutrition by living in and feeding on the tissues or fluids of other organisms. What name is given to the organisms that provide nourishment to lice, fleas, ticks, and bedbugs? Parasite Host Predator Producer

23. Lice, fleas, ticks, and bedbugs are organisms that frequently obtain nutrition by living in and feeding on the tissues or fluids of other organisms. What name is given to the organisms that provide nourishment to lice, fleas, ticks, and bedbugs? Parasite Host Predator Producer

24. Which form of reproduction gives organisms that live in a changing environment the advantage of greater variation? Binary fission Asexual reproduction Budding Sexual reproduction

25. Which form of reproduction gives organisms that live in a changing environment the advantage of greater variation? Binary fission Asexual reproduction Budding Sexual reproduction

26. Which of the following are reactants for cellular respiration and products of photosynthesis? Carbon dioxide and water Glucose and oxygen Glucose, water, and carbon dioxide Glucose, oxygen, and water

27. Which of the following are reactants for cellular respiration and products of photosynthesis? Carbon dioxide and water Glucose and oxygen Glucose, water, and carbon dioxide Glucose, oxygen, and water

28. Mr. Bleier is examining cells with a microscope. The cells he is viewing appear to come from a multi-cellular organism that has a nucleus, a cell membrane, a cell wall, and chloroplasts. From which of the following groups of organisms was the sample taken? Bacteria Plants Animals Protists

29. Mr. Bleier is examining cells with a microscope. The cells he is viewing appear to come from a multi-cellular organism that has a nucleus, a cell membrane, a cell wall, and chloroplasts. From which of the following groups of organisms was the sample taken? Bacteria Plants Animals Protists

30. The half-life of iodine-131 is 8 days. What fraction of a sample of iodine-131 will remain after 32 days? One-half One-fourth One-eighth One-sixteenth

31. The half-life of iodine-131 is 8 days. What fraction of a sample of iodine-131 will remain after 32 days? One-half One-fourth One-eighth One-sixteenth

32. Which process allows organisms with favorable genes an increased chance to survive and reproduce? Endosymbiosis Genetic mutation Parthenogenesis Natural selection

33. Which process allows organisms with favorable genes an increased chance to survive and reproduce? Endosymbiosis Genetic mutation Parthenogenesis Natural selection

34. Which of the following is a result of genetic engineering? Bt corn which is resistant to the pest called the corn borer Using recombinant DNA to create goats whose milk contains an enzyme found in human breast milk Genetically altered bacteria which eat oil and can help clean up oil spills I only I and II only II and III only I, II, and III

35. Which of the following is a result of genetic engineering? Bt corn which is resistant to the pest called the corn borer Using recombinant DNA to create goats whose milk contains an enzyme found in human breast milk Genetically altered bacteria which eat oil and can help clean up oil spills I only I and II only II and III only I, II, and III

36. Ben is mapping the organization of the environment while studying for an exam. Starting with the simplest level, in which order should Ben put the levels of the environment? Biosphere, ecosystem, community, population, organism Organism, community, population, ecosystem, biosphere Organism, population, community, ecosystem, biosphere Population, organism, community, biosphere, ecosystem

37. Ben is mapping the organization of the environment while studying for an exam. Starting with the simplest level, in which order should Ben put the levels of the environment? Biosphere, ecosystem, community, population, organism Organism, community, population, ecosystem, biosphere Organism, population, community, ecosystem, biosphere Population, organism, community, biosphere, ecosystem

38. Only 10% of the energy at any trophic level is available to the next trophic level. Based on this, if a population of wildabeast needs 5,000 J, then how much energy must be produced by the plants they feed on? 5,000 J 500 J 5,500 J 50,000 J

39. Only 10% of the energy at any trophic level is available to the next trophic level. Based on this, if a population of wildabeast needs 5,000 J, then how much energy must be produced by the plants they feed on? 5,000 J 500 J 5,500 J 50,000 J

40. Which of the following effects cannot be attributed to acid rain? Damage to trees and a decline of forest communities An increase in carbon dioxide in Earth’s atmosphere Damage to historic buildings and monuments Death of aquatic organisms in lakes and streams

41. Which of the following effects cannot be attributed to acid rain? Damage to trees and a decline of forest communities An increase in carbon dioxide in Earth’s atmosphere Damage to historic buildings and monuments Death of aquatic organisms in lakes and streams

42. After fires destroyed 793,000 acres of aspen and pine forest in Yellowstone National Park in the summer of 1988, biologists were able to study the long-term effects of fire on an ecosystem. The biologists found that the soil after fire was more fertile which allowed small plants and new pine trees to re-establish quickly in the park. What ecological process were the biologists observing? Biodiversity Equilibrium Succession Food web energy flow

43. After fires destroyed 793,000 acres of aspen and pine forest in Yellowstone National Park in the summer of 1988, biologists were able to study the long-term effects of fire on an ecosystem. The biologists found that the soil after fire was more fertile which allowed small plants and new pine trees to re-establish quickly in the park. What ecological process were the biologists observing? Biodiversity Equilibrium Succession Food web energy flow

44. This drawing shows a food web for an ecosystem. Which of the following organisms is the primary producer for this food web? Polar bear Arctic char Copepod Phytoplankton

45. This drawing shows a food web for an ecosystem. Which of the following organisms is the primary producer for this food web? Polar bear Arctic char Copepod Phytoplankton

46. Which of the following is an advantage of asexual reproduction in an environment that undergoes very few changes? It requires two parents It increases genetic diversity It results in offspring that are genetically identical It does not involve chromosomes

47. Which of the following is an advantage of asexual reproduction in an environment that undergoes very few changes? It requires two parents It increases genetic diversity It results in offspring that are genetically identical It does not involve chromosomes

48. Which of the following is one way that RNA is different from DNA? RNA exists only in one structural form RNA is not twisted into a helix RNA contains adenine and phosphates RNA contains thymine instead of uracil

49. Which of the following is one way that RNA is different from DNA? RNA exists only in one structural form RNA is not twisted into a helix RNA contains adenine and phosphates RNA contains thymine instead of uracil

50. How might the overuse of antibiotics lead to resistant strains of bacteria? Antibiotics change the structure of bacteria, making them resistant. Antibiotics introduce too many bacteria to a population at one time. Antibiotics provide breeding ground in which bacteria flourish. Antibiotics shift natural selection to favor existing resistant bacteria.