Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 25, Problem 4TYU
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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The concept of endosymbiosis as applied to chloroplast and mitochondria found in eukaryotes: a) is based on evidence that Chloroplasts and Mitochondria were originally prokaryotes, b) changes present day animals into plants, c) explains how chemical evolution caused the appearance of life, d) allowed chloroplasts to carry out aerobic metabolism, e) all are true.
Select the statement that does NOT support the origin of excavates that lack plastids, have highly reduced mitochondria and are parasites:
A.
These parasites typically live in low-oxygen conditions and therefore loss of genes for plastids and mitochondria did not result in lower fitness
B.
The original, eukaryotic ancestors of these parasites did not engulf prokaryotes
C.
These parasites typically live in low-oxygen conditions, and many of their mitochondrial genes move to the nucleus
The 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.
Chapter 25 Solutions
Campbell Biology in Focus (2nd Edition)
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. 25.4 - 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 25.9,...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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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
- 1) A group of unspecialized embryonic cells is transplanted from a leg bud to a wing bud in a chick embryos and develops into toes. Which term best describes this phenomenon? A) Differentiation B) Determination C) Induction D) Pattern formation 2) All of the following occur in the light reactions of photosynthesis except the A) Utilization of photons B) Formation of ADP molecules C) Formation of O2 molecules D) Oxidation of water moleculesarrow_forwardWhich of the evolutionary sequences below does NOT represent how chloroplasts were derived? A.cyanobacteria → red algae →brown algae B.cyanobacteria → green algae → land plants C. cyanobacteria → green algae → fungi → land plants D. cyanobacteria → green algae → red algaearrow_forwardBacteria that cause the disease typhus are close relatives of bacteria that evolved into _____. a. Protists b. Protocells c. chloroplasts d. mitochondria Among prokaryotes, only the cyanobacteria ______. a. Live near hydrothermal vents b. Produce oxygen during photosynthesis c. Cannot tolerate oxygen d. Have a nucleus-like structurearrow_forward
- Chloroplasts of green algae evolved from_____ . a. cyanobacteria b. archaea c. red algaearrow_forwardChloroplasts and mitochondria evolved from an endosymbioticrelationship involvinga. purple bacteria and cyanobacteria, respectively.b. cyanobacteria and purple bacteria, respectively.c. cyanobacteria.d. purple bacteria.arrow_forwardA rise in oxygen in Earths air and seas set the stage for the evolution of _______. a. aerobic respiration c. photosynthesis b. fermentation d. sexual reproductionarrow_forward
- The extra energy required for the evolution of the highly complex eukaryotic cell was possible because: a) mesosomes released enzymes into the nucleus b) two types of prokaryotic bacteria became endo symbiotic invaders of the complex cells c) the DNA of the eukaryote cell functions within the nucleoid area d) chloroplasts were able to use O2 to conduct photosynthesis e) the space between the two layers of the nuclear membrane contained mitochondriaarrow_forwardFor each of the following indicate if they evolved once, twice, or perhaps several times. a) acquisition of mitochondria b) acquisition of chloroplast c) multicellularity d) origin of ribosomesarrow_forwardThe evolution of the highly complex eukaryotic cell was possible because.. A) Mesosomes released enzymes in to the nucleus B) Two types of prokaryotic bacteria became endo symbiotic invaders of the complex cells C) The DNA of the eukaryote cell functions within the nucleoid area D) Chloroplasts were able to use 02 to conduct photosynthesis E) the space between the two layers of the nuclear membrane contained mitochondria Explain whyarrow_forward
- Why is the classification of protists based on DNA sequences useful? * a. Because only protists have DNA b. Because it has confirmed the traditional categories for protists c. Because it has revealed evolutionary relationships, even among organisms that look diffferent d. All of the above are correct This is a required question (2) Why is a species with small population more likely than one with a large population to undergo an extinction? * a. Because small population are exposed to greater environmental changes b. Because genetic diversity is likely to be lower in a small population c. Because the mutation rate is too low d. Because they take too long to produce an offspring.arrow_forwardWhich of these is an example of inductive reasoning? A) Hundreds of individuals of a species have been observed and all are photosynthetic; therefore, the species is photosynthetic. B) These organisms live in sunny regions. Therefore, they are using photosynthesis. C) If protists are all single-celled, then they are incapable of aggregating. D) If two species are members of the same genus, they are more alike than each of them could be to a different genus.arrow_forwardMolecular evidence supports the view that all plastids evolved from an ancient (a) cyanobacterium (b) archaean (c) diplomonad (d) apicomplexan (e) unikontarrow_forward
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