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Chapter 26
biol 130 exam 3
| Term | Definition |
|---|---|
| glaucophytes | small group of unicellular algae found in freshwater and moist terrestrial environmemts |
| red algae | multicellular and found in marine |
| green plants | all groups share chloroplasts, chlorophyll b |
| chloroplasts | primary endosymbiosis |
| chlorophyll b | starch storage |
| chlorophytes | largest group of green algae; mostly aquatic |
| streptophytes | all green algae other than chlorophytes forms a group together with land plants |
| non-vascular plants | 3 clades that lack tracheids, liverworts, mosses, and hornworts |
| vascular plants | have vascular systems that transport materials throughout plant body (7 clades) |
| tracheophytes | fluid conducting cells called tracheids |
| cutile | waxy coating that retards water loss |
| stomata | openings in stems and leaves; regulate gas exchange, water loss, and temp |
| gametangia | multicellular organs enclosing gametes |
| embryos | unborn offspring in developing stage |
| pigments | natural coloring matter of animal or plant tissue |
| mycorrhizae | fungus that grows in association with roots of a plant in a symbiotic relationship |
| gametangia | haploid gametophyte produces gametes in specialized sex organs |
| tracheid | type of water-conducting cell in xylem in vascular plants |
| xylem | conducts most of the water and minerals |
| phloem | distributes sugars, amino acids, and other organic products |
| monilophytes | necklace |
| euphyllophytes | a clade formed by monilophytes and seed plants |
| overtopping growth | new branches grow beyond others |
| megaphylls | more complex leaves |
| homosporous | most ancient vascular plant |
| megaspores | develop in female gametophytes |
| microspores | develop in male gametophytes |
| megagametophytes | only eggs |
| microgametophytes | only sperm |