Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 23, Problem 9RQ
Which of the following observations about a bacterium would distinguish it from the last eukaryotic common ancestor?
- A double-stranded DNA genome
- Lack of a membrane-bound structure surrounding the genome
- Fatty acids in the lipid bilayer of the plasma membrane
- Enclosed by a cell wall
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Students have asked these similar questions
Which of the following is a possible characteristic of prokaryotic and eukaryotic cells?
O peptidoglycan
O linear DNA
O pseudomurein
O photosynthetic membrane system
O plasmids
Bacteria differ from Eukarya in all of the following except for
Lack introns
Lack histone proteins
Have smaller ribosomes
Lack a plasma membrane
Have peptidoglycan
Which of the following pieces of evidence could support the endosymbiotic theory if found to be true?
Traces of peptidoglycan in the cytoplasm in eukaryotes
Presence of rRNA in eukaryotes
Presence of 80S ribosomes in eukaryotes
The discovery of a unicellular eukaryote
Chapter 23 Solutions
Biology 2e
Ch. 23 - Figure 23.5 What evidence is there that...Ch. 23 - Figure 23.25 Which of the following statements...Ch. 23 - Figure 23.28 Which of the following statements...Ch. 23 - What event is thought to have contributed to the...Ch. 23 - Which characteristic is shared by prokaryotes and...Ch. 23 - Mitochondria most likely evolved by ___________ ....Ch. 23 - Which of these protists is believed to have...Ch. 23 - In 2016, scientists published the genome of...Ch. 23 - Which of the following observations about a...Ch. 23 - Protists that have a pellicle are surrounded by...
Ch. 23 - Piotists with the capabilities to perform...Ch. 23 - Which of these locomotor organs would likely be...Ch. 23 - Alternation of generations describes which of the...Ch. 23 - The amoeba E. histolytica is a pathogen that forms...Ch. 23 - Which protist group exhibits mitochondrial...Ch. 23 - Conjugation between two Paramecia produces total...Ch. 23 - What is the function of the raphe in diatoms?...Ch. 23 - What genus of piotists appears to contradict the...Ch. 23 - A marine biologist analyzing water samples notices...Ch. 23 - An example of carbon fixation is photosynthesis...Ch. 23 - Which parasitic protist evades the host immune...Ch. 23 - Which of the following is not a way that piotists...Ch. 23 - Describe the hypothesized steps in the origin of...Ch. 23 - Some aspects of eukaryotes are more similar to...Ch. 23 - Explain in your own words why sexual reproduction...Ch. 23 - Giaidia iamblia is a cyst-forming protist parasite...Ch. 23 - Explain how the definition of protists ensures...Ch. 23 - The chllorophyte (green algae) genera Ulva and...Ch. 23 - Why might a light-sensing eyespot be ineffective...Ch. 23 - Opisthokonta includes animals and fungi, as well...Ch. 23 - Describe two ways in which paramecium differs from...Ch. 23 - How does killing Anopheles mosquitoes affect the...Ch. 23 - Without treatment, why dees African sleeping...Ch. 23 - Describe how increasing stress to the ocean would...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- After the glacial retreat at the end of the last ice age, some three-spine stickleback fish (Gasterosteus aculeatus) were isolated in small lakes. A mutation occurred in these fish that resulted in the loss of pelvic spines. Today, all freshwater sticklebacks lack pelvic spines, but are still classified as members of the same species as marine sticklebacks. Scientists collected sticklebacks from both marine and freshwater environments and placed them together in a controlled environment. Which of the following statements describes the effect of the mutation on their ability to interbreed? They should be able to interbreed and produce fertile offspring. They will not be able to interbreed and produce offspring because of hybrid breakdown. They will not be able to interbreed and produce offspring because of mechanical isolation. They should be able to interbreed and produce offspring, but the offspring may experience reduced hybrid fertility.arrow_forwardOrigin of life BACTERIA EUKARYA ARCHAEA Low-GC Gram-positives High-GC Gram-positives Hyperthermophilic bacteria Origin of- mitochondria Hadobacteria Cyanobacteria Spirochetes Chlamydias Proteobacteria -Origin of chloroplasts All eukaryote phyla Thaumarchaeota Crenarchaeota Korarchaeota Euryarchaeota Nanoarchaeotaarrow_forwardSmall bristle-like structures used by bacteria for movement are: O flagella O cytoskeleton O cilia O microfilamentsarrow_forward
- Which of these characteristics is NOT shared by bacteria and archaea? Group of answer choices presence of plasma membrane absence of membrane-bound organelles presence of peptidoglycan in cell wall absence of a nucleusarrow_forwardBacteriorhodopsin, and retinal, are part of a transmembrane complex that uses of sunlight to create a proton gradient, for synthesis of ATP from ADP, in which of the following organisms? one of the members of the Archaeobacterial kingdom one of the members of the Eubacterial kingdom (ancestral to the mitochondria) one of the members of the Animal kingdom one of the members of the Eubacterial kingdom (ancestral to the chloroplasts) one of the members of the Plant kingdomarrow_forwardPenicillin inhibits bacterial growth by preventing the cross-linking during peptidoglycan synthesis. Why does penicillin not inhibit growth of archaeal cells? Group of answer choices Most archaeal cells have a cell wall, but it is not composed of peptidoglycan. Archaeal cells do not have a cell wall. Penicillin is unable to penetrate the lipid outer membrane that blocks access of penicillin to the peptidogycan crosslinking enzymes. Pencillin is unable to penetrate the S layer to reach the peptidoglycan layer underneath.arrow_forward
- are these found in eukaryotes, prokaryotes or both? 1. nucleus 2. cell membrane 3. inclusion bodies 4. cell wall 5. peptidoglycan 6. genome 7. endoplamis reticulum 8. chloroplastsarrow_forwardWhich of the following structures is most likely missing in a bacterium that regenerates from an endospore lacking any of the plasmids from the original cell? Oa chromosome water in its cytoplasm antibiotic-resistant genes a cell wallarrow_forwardprokaryote is characterized by dispersed dna and lack of membrane bound organelle abesence of nuclear envelope abesence of nucleus all of thesearrow_forward
- Figure 13.6 Which of the following statements is true? a. Gram-positive bacteria have a single cell wall formed from peptidoglycan. b. Gram-positive bacteria have an outer membrane. c. The cell wall of Gram-negative bacteria is thick, and the cell wall of Gram-positive bacteria is thin. d. Gram-negative bacteria have a cell wall made of peptidoglycan, while Gram-positive bacteria have a cell wall made of phospholipids.arrow_forwardA prokaryote converts food energy into the chemical energy of ATP on/in its: chromosome. flagella. ribosomes. cell wall. plasma membrane.arrow_forwardUnlike eukaryotic cells, prokaryotic cells ________. a. have no plasma membrane b. have RNA but not DNA c. have no nucleus d. a and carrow_forward
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