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Studocu is not sponsored or endorsed by any college or university Sample Midterm Exam Questions Biol (University of Calgary) Studocu is not sponsored or endorsed by any college or university Sample Midterm Exam Questions Biol (University of Calgary) Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

1. Which term refers to a haploid organism that produces gametes? a. spore b. gametophyte c. gamete d. sporophyte 2. What were the most direct ancestors of modern plants? a. cyanobacteria b. fungi c. green algae d. sponges 3. In land plants there are small passages through the cuticle that allow for some control of water loss by evaporation, and these passages are the main route for uptake of carbon dioxide. What are the passages called? a. sporopollenins b. tracheophytes c. stomata d. thalli 4. Which feature is found in both nonvascular and vascular plants? a. xylem b. cuticle c. apical meristem d. lignin Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

5. What is the name of the lignified, tubelike structures that branch throughout the body of some plants, conducting water and solutes? a. root systems b. rhizomes c. shoot systems d. vascular tissues 6. Gametophyte is a. Diploid b. Single celled c. The gamete d. Multicellular 7. If placed in a hypotonic solution, the plant cell will be a. Turgid b. Plasmolyzed c. Flaccid d. Unaffected 8. A gametophyte produces ----------- through -------------- a. Gametes, meiosis b. Gametes, mitosis c. Spores, meiosis d. Spores, mitosis Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

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9. Spores are coated with a highly resistant material and are produced by the sporophyte through mitosis True/False? 10. Which of the following is a protective structure where egg cells are formed in bryophytes and some other plants? a. stoma b. strobilus c. sporangium d. archegonium 11. Which sentence best describes fertilization in the moss life cycle? a. Flagellated sperm swim in a film of water on the surface of the plant to reach an egg. b. Flagellated sperm swim through plant fluids to reach an egg. c. Flagellated sperm are blown by the wind to a location near an egg, then swim through plant fluids to reach the egg. d. Pollen is blown by the wind to a female cone, where it forms a pollen tube that grows toward where the egg will form. 12. Many eukaryotes have the ability to take in nutrients by phagocytosis, whereas prokaryotes do not. Which of the following explains the advantage this brings to eukaryotes? A) Eukaryotes are able to get bigger because they can now ingest larger materials. B) Phagocytosis provides eukaryotes with a way of obtaining more DNA for their genome, which allows them to become more complex. C) Phagocytosis provides eukaryotes with a way of obtaining more RNA for translation, which allows them to become more complex. D) Eukaryotes are able to exploit more diverse materials for food that prokaryotes cannot. E) None of the answers options is correct. Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

13. Which of the following has supported the evolutionary success of eukaryotes? A) possessing a dynamic cytoskeleton B) having complex patterns of gene regulation C) localizing where energy metabolism takes place D) possessing a sophisticated endomembrane system E) All of the answer options are correct. 14. Mitochondria are thought to have evolved from: A) amoeba. B) heterotrophic protists. C) chloroplasts. D) cyanobacteria. E) proteobacteria. 15. Molecular motors associated with the cytoskeleton allow molecules to move through the cell faster than the speed of diffusion. True/False 16. Which one of the following is not part of the endomembrane system? A) nuclear envelope B) endoplasmic reticulum C) messenger RNA D) Golgi apparatus Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

17. The majority of prokaryotic DNA is arranged in: A) multiple circular chromosomes. B) a single circular chromosome. C) a single linear chromosome. D) multiple linear chromosomes. 18. In animals, the egg and sperm cells are: A) polyploid. B) diploid. C) haploid. D) None of these choices are correct. 19. Which of the following features would you most expect to be different between plants and animals because of their independent evolution of complex multicellularity? A) The mechanism by which plants and animals obtain energy. B) Cell–cell adhesion molecules. C) Plants would have cell walls, but animal cells would not. D) A significant difference in size between the two groups. Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

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20. Which of the following explains why bulk transport allows for a larger body size to be attained? A) All of these options are reasons why bulk transport allows for a larger body size. B) Bulk transport allows for nutrients to be transported over greater distances. C) Bulk transport allows for rapid communication between different parts of the body. D) Bulk transport allows for oxygen to reach interior cells that are located far from the surface of the body. E) Bulk transport allows for waste products to be removed more effectively. 21. You are asked to determine whether an unknown tissue specimen comes from a plant or an animal. Closer inspection with an electron microscope reveals that the cells are connected by small openings lined by extensions of the endoplasmic reticulum connecting the endomembrane systems of adjacent cells. Which of the following conclusions can be drawn from your observations? A) The openings are plasmodesmata, so the tissue must come from a plant. B) The openings are plasmodesmata, so the tissue must come from an animal. C) The openings are gap junctions, so the tissue must come from a plant. D) The openings are gap junctions, so the tissue must come from an animal. E) The openings could be either gap junctions or plasmodesmata, so it cannot be determined whether the tissue came from a plant or an animal. Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

22. Comparative anatomy/embryology helps clarify the relationships among major groups of animals, but also must be interpreted with caution due to ongoing changes over evolutionary time. With this in mind, select the best response for the statement: All animals that are radially symmetrical as adults also A) have nerves B) are diploblastic C) are triploblastic D) are either protostomes or deuterostomes E) are ecdysozoans 23. Cnidarians share a common body plan that takes two forms. The free-floating form is called a _____, whereas the sessile form is called a _____. 24. The majority of all known animal species are A) deuterostomes. B) cnidarians. C) vertebrates. D) insects. E) molluscs 25. The division of bilaterians into monophyletic coelomate, acoelomate and pseudocoelomate groups is supported by molecular studies. True/False? Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

26. Triploblastic organisms give rise to ___ germ layers, which include _______. A) two; ectoderm and endoderm B) three; ectoderm, mesoderm, and endoderm C) three; ectoderm, meristem, and endoderm D) four; ectoderm, meristem, mesoderm, and endoderm 27. A parasite is discovered in an animal and you are asked to help classify it. You notice that the animal is circular in cross-section, shows no segmentation, and has a tough exoskeleton. You conclude the animal belongs to the phylum A) Platyhelminthes B) Arthropoda C) Nematoda D) Annelida E) Mollusca 28. The opening line of a joke reads ‘There was this mollusk, and he walks up to this sea cucumber……..’ A) These two animals belong to the same phylum. B) Both of these animals are protostomes. C) Both of these animals are deuterostomes. D) Impossible, mollusks are sessile. E) None of the above are correct. Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

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Answers: 1 B 2 C 3 C 4 B 5 D 6 D 7 A 8 B 9 False 10 D 11 A 12 D 13 E 14 E 15 True 16 C 17 B 18 C 19 B 20 A 21 A 22 A 23 Medusa, Polyp 24 D 25 False 26 B 27 C 28 E Downloaded by Frkn Dym (frkndym28@gmail.com) lOMoARcPSD|16709386

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