Chapter 28. Archaeplastida

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These flashcards cover key concepts, definitions, and terminology related to the supergroup Archaeplastida, including its characteristics, classifications, and significance in ecology.

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18 Terms

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Archaeplastida

A supergroup that includes green algae, red algae, and land plants, characterized by plastids derived from a single primary endosymbiosis event.

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Plastids

Organelles in plant cells that function in photosynthesis, storage, and the synthesis of other molecules.

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Phycocyanin

A blue pigment found in cyanobacteria and some algae; important in photosynthesis.

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Rhodophyta

Commonly known as red algae, a diverse group of seaweeds found primarily in coastal waters.

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Floridean Starch

A glucose polymer stored in the cytoplasm of red algae, used for energy.

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Phycobilins

Pigments found in red algae that assist in capturing light for photosynthesis.

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Charophytes

A group of green algae that are closely related to land plants, sharing several characteristics.

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Zygnematales

An order of green algae that are filamentous, characterized by their unique sexual reproduction.

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Chlorophytes

A diverse group of green algae that are primarily found in freshwater, saltwater, and soil.

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Acetabularia

A genus of green algae commonly known as mermaid's wine glass, recognized for its unique structure.

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Alternation of Generations

A reproductive cycle characterized by both haploid and diploid stages, often seen in plants and algae.

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Chlamydomonas

Genus of unicellular green algae, often used as a model organism in molecular biology.

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Oogamy

A form of sexual reproduction that involves a large non-motile egg and smaller motile sperm.

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Symbiosis

A mutually beneficial relationship between different organisms, such as algae living in animal tissues.

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Coralline Algae

A type of red algae that deposit calcium carbonate in their cell walls, important in reef building.

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Gelidium

A genus of red algae used as a food thickener and in cosmetic products.

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Dulse

A type of red algae that is consumed as a snack food, high in protein and minerals.

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Lichens

Symbiotic associations between fungi and algae or cyanobacteria, often found in harsh environments.

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