EOCT Quiz 5 35 Questions Created by Brandy

EOCT Quiz #5 35 Questions Created by: Brandy Mc. Clain

#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? a. b. c. d. Contamination Mutation Bacterial infection Speciation

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

#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? a. Yy only b. YY and yy c. Yy and yy d. YY, Yy, and yy

#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 two heterozygous pink snapdragons? a. b. c. d. 2 red, 2 white 2 red, 1 pink, 1 white 1 red, 2 pink, 1 white 1 red, 1 pink, 2 white

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

#6. What is the function of an enzymes in organisms? a. Enzymes act as reactants when the necessary products are available. b. Enzymes act as reactants when the necessary materials are unavailable. c. Enzymes act as catalysts to help reactants become products. d. Enzymes bond with substrates to increase the activation energy.

#7. A mushroom and a humpback whale are alike because both are: a. b. c. d. Motile Prokaryotic Unicellular Heterotrophic

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

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

#10. Cells from which of the following organisms would be expected to contain cell walls? a. b. c. d. Sponge Cricket Water lily Paramecium

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

#12. The picture models a cellular metabolic process. The main purpose of this process is to produce — a. b. c. d. ADP H 2 O Phosphate group Usable energy

#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: a. b. c. d. Parasite Pioneer Species Abiotic Factor Biome

#14. The a. b. c. d. 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

#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 — a. Food intake to increase the substances available for respiration b. The need for waste products to be retained c. Activity in the nervous system to stimulate intake of carbon dioxide d. The breathing rate to supply more oxygen to cells for the release of energy

#16. In the diagram, which organism provides nutrients for the largest number of other organisms? a. b. c. d. Herring Snapper Bluefish Seal

#17. According to the diagram, which of the following is the top predator? a. b. c. d. Diatoms Seal Herring Orca

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

#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 — a. b. c. d. Sex cell Brain cell Muscle cell Bone cell

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

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

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

#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? a. b. c. d.

#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— a. b. c. d. kingdom population biome community

#25. A biologist has just discovered a new life form. The newly described organism is multicellular, does not carry on photosynthesis, and absorbs nutrients from the environment. It is composed of eukaryotic cells with cell walls made of chitin. In which kingdom would the • kingdom organism be classified? • • • population biome community a. b. c. d. Fungi Bacteria Plant Animal

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

#27. Which of these is most responsible for carrying coded information from the nucleus? a. b. c. d. DNA Ribosomes ATP m. RNA

#28. The above information was collected in the field while studying the effect of p. H on the growth of the duckweed plant. The data shows that duckweed has optimum growth at a p. H of — a. b. c. d. 4 6 8 12

#29. Which of these will complete the m. RNA strand matched to DNA? a. b. c. d. AUG CAG GUC UAC

#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? a. b. c. d. Rana sphenocephala Rana clamitans Rana catesbeiana Rana virgatipes

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

#32. This graph suggests that from 1840 to 1920, the carrying capacity for sheep in Tasmania was approximately — a. b. c. d. 0. 75 million 1. 00 million 1. 75 million 2. 25 million

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

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

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

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