EOCT Quiz #5 35 Questions

1. EOCT Quiz #535 Questions Created by: Brandy McClain

2. #1. After a culture of cells is allowed to multiply and is viewed through a microscope, the cells are x-rayed. After the radiation, many newly reproduced cells appear different. What has probably occurred? • Contamination • Mutation • Bacterial infection • Speciation

3. #2. The process of photosynthesis releases this gas into the atmosphere: • Oxygen • Carbon dioxide c. Methane d. Carbon monoxide

4. #3. In squash plants, yellow fruit (Y) is dominant to white fruit (y). If two plants heterozygous for yellow fruit are crossed, what are the possible genotypes of the offspring? • Yy only • YY and yy • Yy and yy • YY, Yy, and yy

5. #4. In snapdragons, the combined expression of both alleles for flower color produces a new phenotype that is pink. This illustrates incomplete dominance. The Punnett square below shows that both the white and red snapdragons are homozygous. Which of the following would be the correct product from a cross between twoheterozygous pink snapdragons? a. 2 red, 2 white b. 2 red, 1 pink, 1 white c. 1 red, 2 pink, 1 white d. 1 red, 1 pink, 2 white

6. #5. Meiosis is the process by which gametes are produced. In which of the following human organs does meiosis occur? • Skin • Testis • Liver • Brain

7. #6. What is the function of enzymes in biological systems? • Enzymes act as substrates when the necessary proteins are unavailable. • Enzymes act as products to create new chemical reactions. • Enzymes act as catalysts to drive chemical reactions forward. d. Enzymes bond with substrates to create the new reaction products.

8. #7. A mushroom and a humpback whaleare alike because both are: • Motile • Prokaryotic • Unicellular • Heterotrophic

9. #8. Which of these could not be a virus? A B C D

10. #9. Which of the following macromolecules are a prominent part of animal tissues that function in insulation, helping animals conserve heat? • Carbohydrates • Lipids • Proteins • Nucleic acids

11. #10. Cells from which of the following organisms would be expected to contain cell walls? • Sponge • Cricket • Water lily • Paramecium

12. #11. What characteristic do all living things share? • They contain DNA • They are made up of many parts • They reproduce by mitosis • They need oxygen to survive

13. #12. The picture models a cellular metabolic process. The main purpose of this process is to produce — • ADP • H2O • Phosphate group • Usable energy

14. #13. Lichens are a combination of fungi and algae. They begin primary succession to break down rocks into soil. They are an example of a: • Parasite • Pioneer Species • Abiotic Factor • Biome

15. #14. The in the pedigree chard below represents what? • a male who is albino • a female who is albino • a male who carries albinism • a female who carries albinism

16. #15. In the human body, muscle cells have an increased need for energy during exercise. To help supply this energy, the body will immediately increase — • Food intake to increase the substances available for respiration • The need for waste products to be retained • Activity in the nervous system to stimulate intake of carbon dioxide • The breathing rate to supply more oxygen to cells for the release of energy

17. #16. In the diagram, which organism provides nutrients for the largestnumber of other organisms? • Herring b. Snapper c. Bluefish • Seal

18. #17. According to the diagram, which of the following is the top predator? • Diatoms • Seal • Herring • Orca

19. #18. Which phase of mitosis would be seen next? • b. c. d.

20. #19. External sources, such as radiation or chemicals, can cause mutations in genes or entire chromosomes. For a mutation to pass on to offspring, it must occur in a — • Sex cell • Brain cell • Muscle cell • Bone cell

21. #20. What is the total magnification used to view these onion cells through this microscope setup? • 10 x • 20 x • 40 x • 400 x 10 X 40 = ?

22. #21. Escherichia coli is the scientific name of a bacterium. What category of classification is Escherichia? • Genus • Species • Kingdom • Family

23. #22. Algae and multicellular plants are autotrophs because they — • Decompose dead organisms • Absorb nutrients from soil • Break down starches to glucose • Capture sunlight to produce sugars

24. #23. Each drawing represents different stages in community succession within the state of Virginia. Which of the following drawings represents the climax community in this succession pattern? • b. • c. d.

25. #24. The organisms in a typical backyard are likely to include bacteria, grass, shrubs, trees, insects, spiders, birds, and small mammals. Together, all these organisms make up a— • kingdom • population • biome • community

26. #25. A biologist has just discovered a new life form. The newly described organism is multicellular, does notcarry on photosynthesis, and absorbs nutrients from the environment. It is composed of eukaryotic cells with cell walls made of chitin. In which kingdom would theorganism be classified? • kingdom • population • biome • community • Fungi • Bacteria • Plant • Animal

27. #26. Amino acids link together by peptide bonds to form proteins. In which cellular organelle would this process occur? • Lysosome • Ribosome • Endoplasmic reticulum • Golgi Body

28. #27. Which of these is most responsible for carrying coded information from the nucleus? • DNA • Ribosomes • ATP • mRNA

29. #28. The above information was collected in the field while studying the effect of pH on the growth of the duckweed plant. The data shows that duckweedhas optimum growth at a pH of — • 4 • 6 • 8 • 12

30. #29. Which of these will complete the mRNA strand matched to DNA? • AUG • CAG • GUC • UAC

31. #30. This key can be used to distinguish four species of frogs found in ponds in eastern Virginia. To which species does the frog shown belong? • Rana sphenocephala • Rana clamitans • Rana catesbeiana • Rana virgatipes

32. #31. Which of these segments could be used to correctly complete the DNA molecule in the diagram above? • F • G • H • J

33. #32. This graph suggests that from 1840 to 1920, the carrying capacity for sheep in Tasmania was approximately — • 0.75 million • 1.00 million • 1.75 million • 2.25 million

34. #33. A student was studying the responses of cells to solutions of varying salt concentrations. Which solution below would be considered the most hypertonic? • F • H • G • J

35. #34. The picture shows a segment of DNA from a cat. Which of these is most likely the kitten of this cat? • 1 • 2 • 3 • 4

36. #35. Which characteristic do viruses possess in common with living cells? • They contain nucleic acids suchas DNA or RNA • They contain a nucleus and organelles. • They make their own food. • They are inactive outside the body of living cells.

37. THE END