WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 15, Problem 6MC
Summary Introduction
Introduction:
In biological taxonomy, a domain is the highest taxonomic rank of organisms in the three domain system of taxonomy designed by Carl Woese. According to the Woese system, the tree of life consists of three domains: archaea, bacteria and eukarya.
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Which of the following statements is correct? Please select all that apply.
Select one or more:
a.
Parasitism between bacteria and archaea caused complex interactions that eventually gave rise to eukarya.
b.
While bacteria are prokaryotes, archaea are neither prokaryotic, nor eukaryotic but classified as a 3rd cell type.
c.
Prokaryotes are classified further based on whether they are unicellular or multicellular organisms.
d.
The molecular biologies of archaea and eukarya show a greater proportion of similarities than those of eukarya and bacteria.
e.
Prokaryotes could not make photosynthesis until chloroplast endosymbiosis evolution.
f.
The last universal common ancestor most likely had a primitive prokaryotic cell organization.
g.
Endosymbiosis of chloroplast precedes that of mitochondria.
Archaea are most closely related to which of the following major groups on the tree of life?
a.
Bacteria
b.
Eucarya
c.
Plantae
d.
None of the above
In the Latin name Canis lupis , the "Canis" is
the name of the corresponding:
a. Species
c. Genus
1.
b. Family
d. Wolf only
2.
The most primitive type of bacteria, which
can live in extreme environments belong to
the kingdom:
a. Eubacteria
c. Protista
b. Archaebacteria
d. Animalia
Kingdom Fungi and Kingdom Animalia have
which of the following in common
a. both have eukaryotic cells
b. both reproduce sexually
c. both reproduce asexually
d. Neither are heterotrophic
3.
Chapter 15 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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- Which of the following observations about a bacterium would distinguish it from the last eukaryotic common ancestor? a. A double-stranded DNA genome b. Lack of a membrane-bound structure surrounding the genome c. Fatty acids in the lipid bilayer of the plasma membrane d. Enclosed by a cell wallarrow_forwardWhich of the following pairs of taxa are most closely related? A. Eubacteria and Archaea B. Archaea and Eukarya C. Eubacteria and the Last Universal Common Ancestor D. Eukarya and Eubacteria E. Eukarya and the Last Universal Common Ancestor?arrow_forwardIn the domain system of classification, prokaryotes are divided into two domains: Bacteria and Archaea. The two domains differ in all BUT one feature. Which feature do they have in common? A. They both thrive in extreme environments. B. They both have prokaryotic cells. C. They both are able to live only under anaerobic conditions. D. They both have identical cell walls.arrow_forward
- Which of the following statements is true? A. Archaea and bacteria have identical membrane lipids. B. The cell walls of archaea lack peptidoglycan. C. Prokaryotes have low levels of genetic diversity. D. No archaea are capable of using CO2 to oxidize H2 releasing methane.arrow_forwardAnalyses of genomes have allowed researchers to determine that some cells have very small genomes. If you were asked to predict which organisms are likely to have smaller genomes than others, which option below would be MOST likely? A. Bacteria that live in plant hosts are likely to have smaller genomes than those that live in animal hosts as it takes a smaller variety of metabolic processes to survive in an animal host. B. Although less is known about Archaea than about Bacteria as fewer species have been studied, it is likely that Archaea have smaller genomes on average than Bacteria as they have fewer metabolic needs. C. Bacteria that are endosymbionts, living within a host, can survive with smaller genomes than free-living Bacteria because they can rely on their host for many of their needs. D. Protists generally have had smaller genomes than Bacteria because Bacteria have such large amounts of noncoding DNA.arrow_forwardBacteria are similar to archaea in that theya. arose through endosymbiosis.b. are multicellular.c. live in extreme environments.d. are prokaryotes.arrow_forward
- Which of the following consist of prokaryotic cells? a. bacteria and fungi b. archaea and fungi c. protists and animals d. bacteria and archaeaarrow_forwardWhich of the following is evidence that eukaryotes and prokaryotes share a common ancestor? a.All eukaryotes and prokaryotes use organic molecules as an energy source. b.All eukaryotes and prokaryotes are capable of mitosis. c.All eukaryotes and prokaryotes contain ribosomes. d.All eukaryotes and prokaryotes contain linear DNA.arrow_forwardWhich of the following statements does not support how prokaryotes have a large amount of genetic variation A. The mutation rate in prokaryotes is not particularly high B. Prokaryotes have extremely short generation times and large populations C. They can exchange DNA with many types of prokaryotes by way of horizontal gene transfer D. They have a relatively small genomearrow_forward
- Which of the following are not eukaryotic? a. bacteria b. archaea c. protozoa d. both a and barrow_forwardThe membrane lipids of archaea are most similar to those found in: a. none of the above b. chloroplasts c. mitochondria d. bacteria e. eukaryotesarrow_forwardWhich of the following extremophiles is the best model for the earliest organisms on Earth? A. a prokaryote found near hydrothermal vents B. an archaean capable of surviving in the polar ice caps C. an anaerobic archaean species D. a bacterium that thrives in a highly acidic environmentarrow_forward
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