Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 37.3, Problem 3CC
MAKE CONNECTIONS → What is a general term that is used to describe the strategy of using photosynthesis and heterotrophy for nutrition (see Concept 28.1)? What is a well-known class of protists that uses this strategy?
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Evidence indicating the chloroplasts were originally free-living prokaryotes that subsequently
evolved a symbiotic relationship with a eukaryotic host includes all of the following except:
Ability of chloroplasts to synthesize all their own proteins
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Similarities of rRNA sequences between chloroplasts and free-living prokaryotes
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O The alga photosynthesizes produce sugars the fungus is able to use, while the fungus keeps the alga safe from being eaten.
O The fungus serves as the substrate the alga needs to perform mitosis, while the alga produces enzymes the fungus needs for decomposition.
O The fungus produces the sugars the alga uses for cellular respiration, while the alga provides a safe place for the fungus to live.
O The alga offers camouflage to the fungus against herbivory, while the fungus secretes toxic substances that release nutrients from the rocks to the alga.
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A lichen is an organism that is actually made of both a fungus and an alga. These organisms live together on rocks and other hard surfaces. How does
a lichen demonstrate obligate mutualism?
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Evolution of Photosynthetic Organisms
Algae are autotrophs and can have photosynthesis, however, evolutionary evidence suggests that plants
shared a common ancestor with only green algae and are closest relatives of Charophytes. What evidences
support this statement? How an algal cell is different from fungal cells, even if both are eukaryotes? Why
slime mold is a protist not a fungus even if it does not have chloroplast?
Renly
Chapter 37 Solutions
Campbell Biology
Ch. 37.1 - Explain how the phrase "too much of a good thing"...Ch. 37.1 - Some lawn mowers collect clippings. What is a...Ch. 37.1 - WHAT IF? How would adding clay to loamy soil...Ch. 37.1 - MAKE CONNECTIONS Note three ways the properties...Ch. 37.2 - Are some essential elements more important than...Ch. 37.2 - WHAT IF? If an element increases the growth rate...Ch. 37.2 - Prob. 3CCCh. 37.3 - Prob. 1CCCh. 37.3 - How do soil bacteria and mycorrhizae contribute to...Ch. 37.3 - MAKE CONNECTIONS What is a general term that is...
Ch. 37.3 - WHAT IF? A peanut farmer finds that the older...Ch. 37 - How is soil a complex ecosystem?Ch. 37 - Do plants need soil to grow? Explain.Ch. 37 - Prob. 37.3CRCh. 37 - Level 1: Knowledge/Comprehension 1. The inorganic...Ch. 37 - Micronutrients are needed in very small amounts...Ch. 37 - Prob. 3TYUCh. 37 - Prob. 4TYUCh. 37 - Prob. 5TYUCh. 37 - A mineral deficiency is likely to affect older...Ch. 37 - The greatest difference in health between two...Ch. 37 - Prob. 8TYUCh. 37 - Prob. 9TYUCh. 37 - Prob. 10TYUCh. 37 - Prob. 11TYUCh. 37 - SCIENTIFIC INQUIRY Acid precipitation has an...Ch. 37 - SCIENCE, TECHNOLOGY, AND SOCIETY In many...Ch. 37 - Prob. 14TYUCh. 37 - Prob. 15TYU
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- The prtists that causes malaria evolved from a photosynthetic ancestor and has the remnant of a chloroplast. The organelle no longer functions in photosynthesis, but it remains essential to the protist. Why might targeting this organelle yield an antimalarial drug that produces minimal side effects in humans?arrow_forwardPlastids are specialized storage organelles found in plants. Which of the mismatched according to the function of the plastid? bilowing is O A) amyloplast: starch O B) chromoplast:carotein C) chromoplast:chlorophyll D) vacuole:anthocyanin O E) chloroplast:chlorophyll 身arrow_forwardClamp connection is found in(a) basidiomycetes (b) ascomycetes(c) saccharomycetes (d) haplomycetes Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.arrow_forward
- How many photons does a dinoflagelate emit per second? What is an example of cold light in a bioluminescent bacteria/chemicals/etc. ? What is an example of hot light in a bioluminescent bacteria/chemicals/etc. ? What is an example of blue light in a bioluminescent bacteria/chemicals/etc. ? What does the amount of light prodused by bioluminescence have to do with the type of light(cold light, hot light, blue light, etc.) produced?arrow_forwardDNA sequence data for a diplomonad, a euglenid, a plant, and an unidentified protist suggest that the unidentified species is most closely related to the diplomonad. Further studies reveal that the unknown species has fully functional mitochondria. Based on these data, at what point on the phylogenetic tree in Figure 1 did the mystery protist’s lineage probably diverge from other eukaryote lineages? Explain.arrow_forward1. Bioluminescence can only be functionally important if detected by other organisms. What are two reasons that dinoflagellates may emit bioluminescence? 2. Bioluminescence is also found in many different kinds of organisms. How do you think the same type of reaction can be found in many different organisms (i.e., what type of symbiotic mechanisms might be occurring)?arrow_forward
- 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.arrow_forwardWhy might a light-sensing eyespot be ineffective for an obligate saprobe? Suggest an alternative organ for a saprobic protist.arrow_forwardIs protist dna in a nucleus unicellular or multicellular?According to the phylogeny presented in this chapter which protists are in the same eukaryotic supergroup as plants a) green algae b) dinoflagellates c) red algaed both a and c in a lifecycle with alternation of generations multicellular haploid forms alternate with a unicellular haploid forms b unicellular diploid formsc multicellular haploid forms d) multicellular diploid formsarrow_forward
- visit www.youtube.com/watch?v=iNXTSxPZF0U Observe the Volvox for a few minutes. These small green spherical colonies of up to thousands of Chlamydomonas-like cells, are usually slowly rolling around in the water mount. Is there any type of coordination in a colony like this?arrow_forwardYeast look nothing like penguins or daffodils. Why today are we not surprised that yeast can reveal a huge amount about penguins and daffodils? (this would have been preposterous to scientists in the 1500's and before)arrow_forwardAlgae are autotrophs and can have photosynthesis, however, evolutionary evidence suggests that plants shared a common ancestor with only green algae and are closest relatives of Charophytes. What evidences support this statement? How an algal cell is different from fungal cells, even if both are eukaryotes? Why slime mold is a protist not a fungus even if it does not have chloroplast?arrow_forward
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