Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 28, Problem 1SYK
Evidence indicates that all plastids (except for one recent example) evolved from a cyanobacterium that was engulfed by an ancestral heterotrophic eukaryote (primary endosymbiosis). Fill in the blanks in the following diagram, which depicts the diversification of this ancestral eukaryote into red algae and green algae and then to various protist groups.
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A)
A major difference between eukaryotic cells and prokaryotic cells is that eukaryotic cells
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exhibit little if any compartmentalization of function
are generally smaller than prokaryotic cells
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B)
Which of the following statements about protists is false?
Group of answer choices
Some protists are mixotrophic
Certain protists share a common ancestor with land plants
Some protists are photosynthetic prokaryotes which are similar to the
ancestral chloroplast
Protists are a polyphyletic group of organisms that often bear little resemblance to each other
Although most protists are unicellular, some protists are multicellular as well
In the early 1930s, G. F. Gause carried out a series of experiments using two species of ciliated protists (Paramecium), which are single-celled eukaryotic protozoans. The protists were cultured together and separately, with the bacteria being the single food source. The results are shown in the figure below.
(a) Based on figure, identify and explain the interaction that is taking place between P. caudatum and P. aurelia.
(b) Clam shrimp, a natural predator to P. caudatum, is introduced to the culture containing both P. caudatum and P. aurelia after 24 days. Predict the impact that the clam shrimp will have on the culture and the populations. Justify your prediction.
An autotrophic protist, such as a diatom or a dinoflagellate, can evolve into a heterotrophic protist (and therefore a protozoan) simply by losing its chloroplasts. Under what conditions might this take place?
Chapter 28 Solutions
Study Guide for Campbell Biology
Ch. 28 - The plastids of chlorarachniophytes are surrounded...Ch. 28 - Sleeping sickness is caused by the kinetoplastid...Ch. 28 - Sleeping sickness is caused by the kinetoplastid...Ch. 28 - Prob. 4IQCh. 28 - Prob. 5IQCh. 28 - Prob. 6IQCh. 28 - Fill in the names of the two major clades and the...Ch. 28 - Prob. 8IQCh. 28 - Evidence indicates that all plastids (except for...Ch. 28 - Prob. 1TYKM
Ch. 28 - Prob. 2TYKMCh. 28 - Prob. 3TYKMCh. 28 - Prob. 4TYKMCh. 28 - Prob. 5TYKMCh. 28 - Prob. 6TYKMCh. 28 - Prob. 7TYKMCh. 28 - ________ flagella with spiral or crystalline rod;...Ch. 28 - Mixotrophs a. have unicellular and multicellular...Ch. 28 - According to the theory of secondary...Ch. 28 - Prob. 3TYKCh. 28 - Prob. 4TYKCh. 28 - Prob. 5TYKCh. 28 - Genetic variation is generated in the ciliate...Ch. 28 - Prob. 7TYKCh. 28 - Prob. 8TYKCh. 28 - Prob. 9TYKCh. 28 - Prob. 10TYKCh. 28 - Which supergroup includes the land plants? a....Ch. 28 - Prob. 12TYKCh. 28 - Prob. 13TYKCh. 28 - Prob. 14TYK
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