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Plant Diversity
Exam 1
| Question | Answer |
|---|---|
| cyanobacteria are builders of | stromatolites |
| cyanobacteria account for what in the oceans | 50 percent of photosynthesis |
| cyanobacteria are _____ producers | primary |
| glaucophytes | first branch, most ancient of photosynthetic eukaryotes |
| glaucophytes chloroplasts have ____ around them | peptoglycin |
| glaucophytes are most likely ancestors of | red algae and green algae |
| red algae sperm cells have flagella? | no |
| how did red algae come about? | primary endosymbiosis |
| primary endosymbiosis | photosynthetic bacteria were engulfed by ancient predatory eukarytoes and resisted digestion; happened once or twice |
| secondary endosymbiosis led to | brown algae, dinoflagellates, euglenoids, diatoms |
| first verified algal fossils were from | red algae |
| reddish hue of chloroplasts are from | phycobilin called phycoerythrin |
| red algae found in what depths | deep |
| chloroplasts of red algae resemble | chloroplasts of cyanobacteria |
| chloroplasts of red algae possess | chlorophyl a and phycobilins |
| chloroplasts of red algae have unstacked | photosynthetic lamellae |
| red algae lack ___ and ___ in any life cycle | flagella or centrioles |
| life cycles are complex since they produce many small | non-motile spermatia |
| green algae came about from | same way as red algae |
| younger or older than red algae? | younger |
| green algae chloroplasts come from? | prochloron which as chlorophylls a and b and carotenoids |
| green algae have flagella in what part of the life cycle? | gametes and zoospores |
| green algae gave rise to what? | land plants |
| green algae live as (part of life cycle) | haploid cells |
| green algae cells divide repeaatedly through mitosis creating large groups of | single celled organisms |
| fusion process in green algae occurs in specialized cells for that purpose called | gametes |
| in green algae once zygotes are formed they may soon undergo meiosis or | secrete hard wall and remain dormant for a while |
| ulva is | green algae (sea lettuce) |
| ulva body develops as a | flat sheet as cells divide in different directions within a single plane |
| ulva cells contain one large | chloroplast with a pyrenoid |
| ulva produce flagella and use them for | locomotion in both gametes and zoospores |
Created by:
maxij
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