Biol201 f06 exam1 versionA

Biol201 f06 exam1 versionA - Version A Pg. 1 Biology 2018...

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Unformatted text preview: Version A Pg. 1 Biology 2018 Fall 2006 Exam One Oct 4 2006 Version A The questions below refer to the following terms. Each term may be used once, more than once, or not at all. nonadaptive analogous . homologous . polyphyletic monophyletic moom> 1) shared derived characters C. homologous 2) a taxon, all of whose members have the same common ancestor E. monophyletic Use the following options to answer the following question. For this description of reproductive isolation, select the option that best describes it.. A. gametic B. temporal C. behavioral D. habitat. E. mechanical 3) two species of trout that breed in different seasons B. temporal 4) The following important concepts of population genetics are due to random events or chance except A) mutation. B) the bottleneck effect. C) the founder effect. D) natural selection. E) none of the above. 5) When we say that an individual organism has a greater fitness than another individual, we specifically mean that the organism A) lives longer than others of its species. B) competes for resources more successfully than others of its species. C) mates more frequently than others of its species. D) utilizes resources more efficiently than other species occupying similar niches. E) leaves more viable offspring than others of its species. Version A Pg. 2 6) Though plants, fungi, and prokaryotes all have cell walls, we classify them under different taxonomic units. Which of the observations below comes closest to explaining the basis for placing these organisms in different taxa? A) Some closely resemble animals, which lack cell walls. B) Their cell walls are constructed from very different biochemicals. C) Some have cell walls only for support. D) Some have cell walls only for protection from herbivores. E) Some have cell walls only to control osmotic balance. For the following question, Pick the term that best matches the statement. A. photoautotrophs B. photoheterotrophs C. chemoautotrophs D. chemoheterotrophs that perform decomposition E. parasitic chemoheterotrophs 7) use light energy to synthesize organic compounds from C02 8) Which of the following statements is consistent with the hypothesis that certain eukaryotic organelles originated as prokaryotic endosymbionts? Such organelles A) are roughly the same size as bacteria. B) can be cultured on agar since they make all their own proteins. C) contain circular DNA molecules. D) have ribosomes that are similar to those of bacteria. E) A, C, and D 9) Which of the following marine organisms produce potent neurotoxins that cause extensive fish kills, contaminate shellfish, generate red tides, and create severe respiratory irritation to humans along the shore? A) red algae B) dinoflagellates C) diplomonads D) euglenids E) golden algae 10) The Irish potato famine was caused by an organism that belongs to which group? A) bacterium B) stramenopile . C) foraminiferan D) apicomplexan E) virus 11) A certain unicellular eukaryote has a sillica (glasslike) cell wall. To which group does it belong? Version A Pg. 3 A) dinoflagellate B) diatom C) gymnamoeba D) foraminiferan E) slime mold 12) Plasmodium, the malarial parasite, contain apicoplasts which are relictual A) nuclei B) mitochondria C) cell walls D) chloroplasts E) gametophytes 13) Which of the following do all fungi have in common? A) meiosis in basidia B) coenocytic hyphae C) sexual life cycle D) absorption of nutrients E) symbioses with algae 14) Which of the following characteristics is not shared by both chytrids and other kinds of fungi? A) presence of hyphae B) flagellated zoospores C) absorptive mode of nutrition D) chitinous cell walls E) amino acid base sequences of some enzymes 15) This phylum contains the mushrooms, shelf fungi, and puffballs. Zygomycota Ascomycota . Basidiomycota . Glomeromycota Chytridiomycota moom> 16) One of the major distinctions between land plants and the green algae is that A) only green algae have flagellated, swimming sperm. B) embryos are not retained within parental tissues in green algae. C) meiosis proceeds at a faster pace in green algae than in plants. D) chlorophyll pigments in green algae are different from those in green plants. E) only plants form a cell plate during cytokinesis. 17) The most recent common ancestor of all land plants was most similar to modern-day members of which group? A) Cyanobacteria Version A Pg. 4 B) red algae C) Charophycean algae D) brown algae E) golden algae 18) Plant spores give rise directly to A) sporophytes. B) gametes. C) gametophytes. D) sporophylls. E) seeds. 19) Each of the following is a general characteristic of bryophytes (mosses, hornworts, liverworts) except A) a cellulose cell wall. B) vascular tissue. C) chlorophylls a and b. D) being photosynthetic autotrophs. E) being eukaryotic. 20) In which of the following does the sporophyte depend on the gametophyte for nutrition? A) fern B) moss C) pines D) both A and C E) A, B, and C 21) Which of the following is not true concerning the sporophyte or gametophyte generations of flowering plants? A) The flower is composed of gametophyte tissue only. B) The sporophyte generation is dominant. C) The sporophyte generation is what we see when looking at a large plant. D) The gametophyte generation is not photosynthetic. E) The gametophyte generation consists of relatively few cells within the flower. Version A Pg. 5 22) Which of the following is an ongoing trend in the evolution of land plants? A) decrease in the size of the leaf B) reduction of the gametophyte phase of the life cycle C) elimination of sperm cells or sperm nuclei D) increasing reliance on water to bring sperm and egg together E) replacement of roots by rhizoids 23) Seeds commonly provide for each of the following except A) a choice of germination location. B) dispersal. C) dormancy. D) a nutrient supply for the embryo. E) desiccation resistance. 24) Which of the following statements does not describe a portion of the pine life cycle? A) Female gametophytes use meiosis to produce eggs. B) Seeds are produced in ovulate (ovule-bearing) cones. C) Meiosis occurs in sporangia. D) Pollen grains contain male gametophytes. E) A pollen tube enters an ovule through a microper in the single integument. 25) In which of the following groups do plant sperm no longer have to swim to reach the egg in the female gametophyte? A)bryophytes ( example: mosses) B)non-seed vascular plants (ferns) C)seed plants (pines) D)charophycean (Chara) 26) Which group of plants has double fertilization or the production of triploid endosperm? A)Pines B)Mosses C)Ferns D)Flowering Plants 27) Which plants have heterospory? A)Mosses B)Ferns C)Pines D)Flowering Plants E) C and D 28) The pollen grain contains the: A)archegonium Version A Pg. 6 B)female gametophyte C)male gametophyte D)polar nuclei 29) The life cycle below accurately describes the life cycle of A) Pines B) Flowering plants C) Ferns D) Moses E) C and D 30) In the life cycle below the eggs are produced in which structure? A)megasporangium B)archegonium C)antheridium D)sporocyte GAMETOPHYTE ,27 (n) / t 4 ;© © (n) C) (3 f (n) (n) produa’ Sporo/cyte \ y l \ Egg Sperm Sporangium (n: in) (2“) \ f erti liza ti on SPOROPHYTE (2“) Zygote \ / (zn) \ Embryo 4/ (2n) ...
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Biol201 f06 exam1 versionA - Version A Pg. 1 Biology 2018...

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