CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
3rd Edition
ISBN: 9780135191811
Author: Urry
Publisher: PEARSON
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Chapter 25, Problem 5TYU
Summary Introduction
Introduction:
When one creature lives in the body of other organism and has mutual beneficial relation, then this interaction is known as endosymbiosis. In secondary endosymbiosis, the plastid lives in the prokaryotes and in primary endosymbiosis; the plastids are present in eukaryotes.
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Which of the following statements supports the concept of the endosymbiotic theory?
A. Proteins may be trafficked within the endomembrane system.
B. Ribosomes are present in the cytoplasm of prokaryotic cells and eukaryotic cells.
C. Chloroplasts have many features in common with bacteria.
D. Mitochondria can fuse together to form larger organelles within eukaryotic cells.
Which of the following structures in chlorarachniophytes provides evidence that they evolved through the endosymbiosis of a green alga by a heterotrophic eukaryote?
A. food vacuole
B. nucleomorph
C. mitosomes
D. flagella
Which of the following statements is the MOST compelling argument that fungi are more closely related to animals than plants?
A.
Plants have chloroplasts whereas fungi and animals cells do not.
B.
Plants fix carbon dioxide from the air; fungi and animals use pre-existing organic molecules.
C.
The DNA sequences of ribosomal RNA of fungi share more homology with ribosomal RNA from animals than plants.
D.
Both animal and fungal cells are eukaryotic.
Chapter 25 Solutions
CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
Ch. 25.1 - Describe major events in the evolution of early...Ch. 25.1 - Explain why eukaryotes are said to be combination...Ch. 25.1 - Prob. 3CCCh. 25.2 - Summarize the evidence that choanoflagellates are...Ch. 25.2 - MAKE CONNECTlONS Describe how the origin of...Ch. 25.2 - Prob. 3CCCh. 25.3 - Briefly describe the organisms found in each of...Ch. 25.3 - MAKE CONNECTIONS Review Figures 7.2 and 8.5...Ch. 25.3 - Prob. 3CCCh. 25.3 - Prob. 4CC
Ch. 25.4 - Justify the claim that photosynthetic protists are...Ch. 25.4 - Prob. 2CCCh. 25.4 - Prob. 3CCCh. 25 - The oldest fossil eukaryote that can be resolved...Ch. 25 - Prob. 2TYUCh. 25 - Plastids that are surrounded by more than two...Ch. 25 - Prob. 4TYUCh. 25 - Prob. 5TYUCh. 25 - Based on the phylogenetic tree in Figure 25.10,...Ch. 25 - MAKE CONNECTIONS The bacterium Wolbachia is a...Ch. 25 - FOCUS ON EVOLUTION DRAW IT Medical researchers...Ch. 25 - FOCUS ON INTERACTIONS Organisms interact with each...Ch. 25 - SYNTHESIZE YOUR KNOWLEDGE These micrographs show...
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- The endosymbiotic theory argues that prokaryotes become some of the organelles of early eukaryotic cells. All of the following support this hypothesis Except: A. The mitochondria and chloroplasts have their own DNA and are nearly idential to some free-living prokaryotes b. Mitochondria and chloroplasts are nearly idential to some free-living prokaryotes. c. Mitochondria and chloroplasts have their own DNA d. The vacuoles can come and go across the plasma membranearrow_forwardHorizontal gene transfer probably started soon after endosymbiosis. It has resulted in genes being moved from the mitochondrion to the nucleus. What is a reasonable explanation for why some genes still remain in the mitochondria? A. The products of those genes are rapidly damaged and need to be quickly replaced. B. The products of those genes are not required for organelle function. C. The ability for lateral gene transfer ended about a billion years ago and some genes simply got “stuck” within mitochondria. D. The products of those genes are only needed in the mitochondria.arrow_forwardOne piece of supporting evidence for the endosymbiotic theory for the origin of eukaryotic cells is thata. eukaryotic cells have internal membranes.b. mitochondria and chloroplasts have their own DNA.c. Golgi bodies and endoplasmic reticulum were present in ancestral cells.d. the nuclear membrane could only have come from another cell.arrow_forward
- According to the theory of endosymbiosis, organelles, like mitochondria and chloroplasts, were once free-living cells that were absorbed into another cell. The relationship benefited both cells to stay together. What evidence do scientists observe today that supports the theory of endosymbiosis? Select all that apply. a There are ribosomes found inside mitochondria and chloroplasts just like there are inside cells. b Looking inside mitochondria and chloroplasts, one will find that they each contain their own DNA. c Mitochondria and chloroplasts are found inside all cell types. d Mitochondria and chloroplasts each have a membrane around them just like a cell would.arrow_forwardAlternation of generations describes which of the following? a. The haploid form can be multicellular; the diploid form is unicellular. b. The haploid form is unicellular; the diploid form can be multicellular. c. Both the haploid and diploid forms can be multicellular. d. Neither the haploid nor the diploid forms can be multicellular.arrow_forwardWhich of the following is NOT evidence for endosymbiosis? A. Bacteria and mitochondria both have nuclei. B. Bacteria and mitochondria both have ribosomes. C. Bacteria and mitochondria both have circular DNA. OD. Bacteria and mitochondria both reproduce via binary fission E. Bacteria and mitochondria both have membranes.arrow_forward
- Which of the following is not a characteristic that chloroplasts and mitochondria share? A. They are both believed to originally be Eubacteria B. They are both double-membrane structures. C. They are capable of reproducing themselves. D. They are both part of the endoplasmic membrane system. E. They both have their own DNA.arrow_forward1. Which of the following is not an evidence that chloroplasts and mitochondria originated as prokaryotic endosymbionts of larger cells? * A. They contain circular DNA molecules not associated with proteins. B. Their membranes have enzymes and transport systems that resemble those found in plasma membranes of prokaryotes. C. Their ribosomal RNA is more similar to that of eubacteria than to eukaryotes. D. They contain their own genome and produce their own proteins. 2. Why does the endosymbiotic hypothesis maintain that chloroplasts may have at least three origins? It is because * A. Molecular systematics link the red line, green line and brown line to three different eubacteria. B. The chloroplasts of green plants show three distinct morphologies. C. The pigment composition and thylakoid arrangement cyanobacteria occur in three different arrangements. D. The phyla of algal protists can be divided into three…arrow_forwardThe endosymbiotic theory explains the:a. origin of the first prokaryotic cells.b. origins of mitochondria and chloroplasts in eukaryotes.c. evolutionary relationship between animals, plants, and fungi.d. method of reproduction in protists.arrow_forward
- Green plants differ from the algal Charophycea in: O a. Green plants use phragmoplasts. Ob. Green plants do not have growth throughout the whole length of the stem. O C. Green plants have vascular tissue. d. Green plants have seeds. O e. Green plants do not have asexual reproduction. BIOL2102_derekmr here to search DELLarrow_forwardProtoplasts are plant cells that lack a. nuclei. b. cell walls. c. plasma membranes. d. protoplasm.arrow_forwardAlthough ascospores are produced by mitotic division, none of the spores develop into fungi that are identical to either parental hyphae. What is the BEST explanation for this observation? A. The spores inherit half their genes from each parent. B. The spores inherit haploid nuclei from their parents. C. The spores inherit mutations as a result of meiosis. D. The spores inherit mutations as a result of mitosis. Photo Attatchedarrow_forward
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