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Questions and Answers
What structure provides structural integrity to dinoflagellates?
What structure provides structural integrity to dinoflagellates?
Which pigment is an accessory pigment found in dinoflagellates?
Which pigment is an accessory pigment found in dinoflagellates?
How do dinoflagellates benefit from their relationship with host organisms?
How do dinoflagellates benefit from their relationship with host organisms?
What initiates the inversion in the life cycle of Volvox?
What initiates the inversion in the life cycle of Volvox?
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What happens to the parental organism of Volvox after it releases juvenile organisms?
What happens to the parental organism of Volvox after it releases juvenile organisms?
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What process do budding yeast use to reproduce?
What process do budding yeast use to reproduce?
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How do fission yeast divide?
How do fission yeast divide?
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What triggers sexual reproduction in Chlamydomonas?
What triggers sexual reproduction in Chlamydomonas?
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What characterizes dimorphic fungi?
What characterizes dimorphic fungi?
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What unique feature distinguishes diatoms from other unicellular organisms?
What unique feature distinguishes diatoms from other unicellular organisms?
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What occurs when a diatom reaches a critical size?
What occurs when a diatom reaches a critical size?
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In which condition do dinoflagellates perform photosynthesis?
In which condition do dinoflagellates perform photosynthesis?
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What happens to the gonidia in Volvox during its asexual life cycle?
What happens to the gonidia in Volvox during its asexual life cycle?
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What features do algae share with plants?
What features do algae share with plants?
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What structural adaptation aids in the movement of dinoflagellates?
What structural adaptation aids in the movement of dinoflagellates?
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What role does cAMP play in the life cycle of D. discoideum?
What role does cAMP play in the life cycle of D. discoideum?
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Which protein allows for cell-cell attachment during D. discoideum aggregation?
Which protein allows for cell-cell attachment during D. discoideum aggregation?
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What type of hyphae lack cross walls and consist of a single multinucleate cell?
What type of hyphae lack cross walls and consist of a single multinucleate cell?
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In which type of fungi are asci found, producing sexual spores?
In which type of fungi are asci found, producing sexual spores?
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Which of the following is true about budding yeast?
Which of the following is true about budding yeast?
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What is the primary outcome when two cells of Rhizopus nigricans undergo sexual reproduction?
What is the primary outcome when two cells of Rhizopus nigricans undergo sexual reproduction?
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Which part of the D. discoideum slug will ultimately differentiate into the spore sack?
Which part of the D. discoideum slug will ultimately differentiate into the spore sack?
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Which class of fungi is known for producing asexual spores called conidia?
Which class of fungi is known for producing asexual spores called conidia?
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What is the primary function of vegetative hyphae in fungi?
What is the primary function of vegetative hyphae in fungi?
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What triggers the aggregation process in the asexual life cycle of D. discoideum?
What triggers the aggregation process in the asexual life cycle of D. discoideum?
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What is the primary role of the nucleus in eukaryotic cells?
What is the primary role of the nucleus in eukaryotic cells?
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Which statement correctly describes the mitochondria?
Which statement correctly describes the mitochondria?
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What role does the rough endoplasmic reticulum (RER) play in protein synthesis?
What role does the rough endoplasmic reticulum (RER) play in protein synthesis?
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Which of the following best describes the function of lysosomes?
Which of the following best describes the function of lysosomes?
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Which organelle is primarily responsible for the synthesis of chlorophyll?
Which organelle is primarily responsible for the synthesis of chlorophyll?
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What is a major characteristic of the endosymbiotic theory?
What is a major characteristic of the endosymbiotic theory?
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What is the function of microfilaments in the cytoskeleton?
What is the function of microfilaments in the cytoskeleton?
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Which component of the cytoskeleton is involved in cellular movement?
Which component of the cytoskeleton is involved in cellular movement?
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What distinguishes flagella from cilia?
What distinguishes flagella from cilia?
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What is the main role of the Golgi complex in a cell?
What is the main role of the Golgi complex in a cell?
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What is the primary function of peroxisomes in eukaryotic cells?
What is the primary function of peroxisomes in eukaryotic cells?
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What is the importance of telomerase in eukaryotic cells?
What is the importance of telomerase in eukaryotic cells?
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During which process do hydrogenosomes convert pyruvate into Acetyl CoA?
During which process do hydrogenosomes convert pyruvate into Acetyl CoA?
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What is one function of the nucleolus within the nucleus?
What is one function of the nucleolus within the nucleus?
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What is the primary function of telomerase in eukaryotic cells?
What is the primary function of telomerase in eukaryotic cells?
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In which type of cellular division do diploid cells undergo a reduction in chromosomal copy number?
In which type of cellular division do diploid cells undergo a reduction in chromosomal copy number?
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What results from the fusion of an a cell with an a cell during the yeast life cycle?
What results from the fusion of an a cell with an a cell during the yeast life cycle?
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During mRNA processing, which modification occurs at the 5' end of pre-mRNA?
During mRNA processing, which modification occurs at the 5' end of pre-mRNA?
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Which process is primarily associated with asexual reproduction in protozoa?
Which process is primarily associated with asexual reproduction in protozoa?
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What happens to the haploid micronuclei after conjugation in paramecium?
What happens to the haploid micronuclei after conjugation in paramecium?
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Which of the following organisms undergoes schizogony?
Which of the following organisms undergoes schizogony?
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What is the significance of the cytoplasmic bridge formed during paramecium conjugation?
What is the significance of the cytoplasmic bridge formed during paramecium conjugation?
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What characterizes the plasmodium of acellular slime molds?
What characterizes the plasmodium of acellular slime molds?
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Which statement accurately describes apicomplexans?
Which statement accurately describes apicomplexans?
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What is the main outcome of sexual reproduction in Plasmodium?
What is the main outcome of sexual reproduction in Plasmodium?
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What is the function of ribozymes in mRNA processing?
What is the function of ribozymes in mRNA processing?
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Which group of mastigophora includes photoautotrophs?
Which group of mastigophora includes photoautotrophs?
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What is a characteristic feature of cellular slime molds?
What is a characteristic feature of cellular slime molds?
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Study Notes
Dinoflagellates
- Unicellular algae, and plankton
- Possess interlocking cellulose plates in plasma membrane for structural support
- Propelled by two flagella that spin
- Photosynthetic, using chlorophyll and fucoxanthin (carotenoid pigment)
- Some form endosymbiotic relationships with jellyfish, corals, and mollusks
- Provide food through photosynthesis; the host organism protects them from the environment; some lack cellulose
Volvox Life Cycles
- Life cycle involves inversion (like gastrulation)
- Cell migration moves cells from the exterior to the interior
- Juvenile organisms develop further
- Mature organisms are released from the parental organism
- Eventually, the parental organism only consists of somatic cells, without gonidia
- Parental organisms' somatic cells undergo programmed cell death
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Description
Explore the fascinating world of dinoflagellates and their unique characteristics, such as interlocking cellulose plates and movement through flagella. Delve into the life cycles of Volvox, highlighting their developmental stages and processes like inversion and programmed cell death. This quiz covers important biological concepts relevant to these unicellular organisms.
