C) They bave RNA single species of bacteria, prodaction of chemicals that atrect
ID: 277859 • Letter: C
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C) They bave RNA single species of bacteria, prodaction of chemicals that atrect ofer bacteria, and peoductikn of chmiesis thatwt mamel exaenining a rock surface, you heve disovered allow the acteri e clanafy the organisn as belonging to Blacteria but not Archacs or Eukaya e) The lpuis in its plama menirne const ofílyearl D) It can servive at stempentane ever 100c in inlereting tew organ Which of the folowing orteris willlo y ly of peptidoglycan B) The orgenism dees not have a clesn s Which of the following describe all exisxing becteri? A) purhogenis, onnipeesmt mophologikally diverse D) moephologically divense, metabolically diverse,exdremophle C) tiny, uhiquaiteus, metabolically divere new mitatins accumvalate quickly in popaletions, while in oukaryotes ew matations acoumiate much more prinary reasons for this are A) prokaryotes have short penerstion times and largs populatsion stres i n eskaryotes, but they are more useful to the yotea fave rendom mutations while eukaryoles can aet genes for mutations, dvas mutations may no unvalabe as quickly onganism C) the DNA in prokaryotes in not as statle as oukaryots DNA and is dras more likely to matate D) prokwryote mutations are less efflective than cukaryote mutations is providing varietion for evoluioe 40 Broad-spectrun anobioties ishibit the growth of most intestinal bacterin Consequently,Assuming that nothing is done io counber he reduction of inlestinal bacteris, a hospital pationt who is receiving beond-spectrum antibioties is mont Iskely to beocene A) unable to fix carbon dioxide B) astibictic resistant C) nsble to synthesine peptidoglycen D) deficint in certain vitemins and nurients A) to improve hasman health with the belp of living organisms such as becteria C)toimprove soil qeality for plant powth byusing bactena What is the gosl of hiorenmediation? ?) so cli anupareas polluted with ide compounds by using baarna D) to improve bacteria for production of uscful chemicels 42 Recently, a microbe that is able to digest cellulose was disoovered in a hot spring with an average icmperature of C) Cysnobacieria he group to which this mierobe most Iikely belongs A) Archacs B)Proseobceria D) Pang 43. Which of the fotlkowing organims is a peoducer? A) kinetoplestids B) spicomplexans C) diatomsD) ciliates 44 Imagine that some members of an aquatic species of moole, photosynthetic pretists evolve to become parusitic to fish. They gain the ability to ive in the fish gt, abworbing nutrients as the fish digests food. Over time, which of the following phenotypic changes B) loss of chloroplasts would yos expect to observe in this popelation of protists? A) loss of motulity D) gain of meiosis C) gain of a rigid cell wall 45. Evidenoe that supports placing green algae and plants is the same phylogmetic group inclades A) similanities in mik structare and enzyme soqaences B) similarities in chloroplast structure and pigment composition C) similarities in oell wall and membrane structure D) DNA sequence similarities in genes for ribosome structure 46. Green algae differ from land plants in that many groce algacA) are unicellular B) have plastids C) have allernation of generations 47 The penome ofmodem chlorop lasts as roughly 50% the size of the genome of the cyanobacterium from which it is thought to have been derived In comparison, the genome of P. chromatophora's chromstophore is only slightly reduced relative to the size of the genome of the cy anoba imun from which it is thought Io have boen derived what is a valid hypothesis that can be dr¡??. from this comperison? A)Lytic phage infections have targeted the chloroplast genome more often than the P. chromatophora genome B) P chromatphonis chromatophore is lhe result of an evolutionarily recent endosymbiosis. C) The ganome of the chloroplast ancestor contained m.any more introns that could be lost without harm compared to the chromatophore's genome D) The gcmome of the cyanobacteria was smaller than the genome of P. chromatophora 48. You wre givan the task of designing an aquatic protist that is a primary produoer. It cannot swim on its own, yet must stay in well- lit surface A) diatom B) dinofagellate waters It must be resistant to physical damage from wave action. It should be most similar to a(m). C) apicomplexan D) red algaExplanation / Answer
37. A) Cell walls are made primarily of peptidoglycan.
38. C)tiny, ubiquitous, metabolically diverse
39. A) Prokaryotes have short generation times and large population sizes.
40. D) deficient in certain vitamins and nutrients.
41. B) to clean up areas polluted with toxic compounds by using bacteria
42. A) Archaea
43. C) diatoms
44.B) loss of chloroplasts
45.B) similarities in chloroplast structure and pigment composition
46. A) are unicellular
47. B) P. chromatophora's cyanelle is the result of an evolutionarily recent endosymbiosis.
48. A) diatom
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