obiology Now: Arbuscular Mycorrhizal Fungi: Intimate, Unseen, and Powerful To un
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obiology Now: Arbuscular Mycorrhizal Fungi: Intimate, Unseen, and Powerful To understand eukaryotic phylogenies, it is important to understand the role of endosymbiosis and major characteristics of the groups. For each sente Drag the terms on the left to the appropriate blanks on the right to complete the sentences. View Available Hint(s) Reset Help Red and green algae Diplomonads Fungi (such as Rhizophagus usually have chitin cell walls, can be single-celled or multicellular, can be pathogenic and can have mutualistic relationships with plants have chloroplasts that resulted from a primary endosymbiotic event rather than a irregularis) Euglenids Apicomplexans Oomycetes secondary endosymbiotic event contain two nucleil of approximately equal size and mitosomes are nonphotosynthetic obligate parasites are protsts that share several characteristics with fungi, such as hyphae, but that have cellulose cell walls and other important differences from fungi have fagella and are both chemotrophic and autotrophic (phototrophic) SubmitExplanation / Answer
Fungi (such as Rhizophagus irregularis): usually have chitin cell walls, can be single-celled or multicellular, can be pathogenic and can have mutualistic relationships with plants.
Explanation: Fungi are spore-bearing eukaryotes. They are heterotrophic. They may be single-celled or multicellular. Their cell walls generally made of chitin. Mutualistic association between fungi and plant roots are called as mycorrhizae. They can be pathogenic.
Red and green algae: have chloroplasts that resulted from a primary endosymbiotic event rather than a secondary endosymbiotic event.
Explanation: Algae are chlorophyll bearing thalloid organisms. These organisms have chloroplasts and these chloroplasts resulted from the primary endosymbiosis.
Diplomonads: contain two nuclei of approximately equal size and mitosomes.
Explanation: Diplomonads are heterotrophic protists. They contain double cells and therefore they contain two nuclei of approximately equal size. They do not have mitochondria and Golgi apparatus. They have modified mitochondria, called as mitosomes.
Apicomplexans: are nonphotosynthetic obligate parasites.
Explanation: Apicomplexans are unicellular, obligate parasites. They have an apicoplast (a nonphotosynthetic plastid).
Oomycetes: are protists that share several characteristics with fungi, such as hyphae, but that have cellulose cell walls and other important differences from fungi.
Explanation: Although oomycetes have traditionally been placed in the kingdom fungi, they are not true fungi. They have cell walls made of cellulose. Now they are placed in the kingdom Protista under the five-kingdom system.
Euglenids: have flagella and are both chemotrophic and autotrophic (phototrophic).
Explanation: Euglenids are unicellular flagellated protists. They are mainly mixotrophic. In the presence of sunlight, they are photoautotrophic and when the sunlight is not available they absorb organic nutrients from their environment (Chemotrophic).
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