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Exam 3
Plants
| Question | Answer |
|---|---|
| Where does the seed develop? | The ovule |
| What are the first products of cel division from the megaspore mother cell? | 4 haploid cells, and only one of them develops into a megagametophyte |
| What does double fertilization in angiosperms produce? | A diploid zygote and a triploid endosperm |
| What are characteristics of the microgametophyte in angiosperms? | It is parasitic on the sporophyte and is contained within the ovule |
| What is the endosperm of a seed? | The nutritive tissue of the seed |
| Why do fleshy fruits often change bright colors when they are ripe? | The color attracts animals for seed dispersal and if the animals ate the green fruit the seeds would not be fully developed yet |
| WHat does "buzz pollination" refer to? | The vibration of anthers by bees to collect pollen |
| Where does the fleshy part of the fruit that we eat come from? | The ovary |
| What groups require water for reproduction? | Bryophytes and seedless tracheophytes |
| What are characteristics of fruit that are adapted for bird dispersal? | They are often bright red or blue, are fleshy, and contain seeds that are resistant to digestion |
| What are general trends of plant evolution? | Less reliance on water for reproduction, transition from a dominant gametophyte stage to a dominant sporophyte, increase in tissue complexity including specialized vascular tissue for transport of sugar and water |
| Male wasps trying to mate with orchid flowers is an example of what kind of pollination? | Copulation pollination |
| What does the alternation of generations refer to? | Separate diploid and haploid generations alternating |
| What are some seedless vascular plants? | Club mosses, horsetails, and ferns |
| Where does meiosis occur in the basidiomycetes? | In the basidia, along the gills of the mushroom |
| How do angiosperms differ from gymnosperms? | They have flowers |
| How do angiosperms and gymnosperms differ from tracheophytes? | They have pollen and seeds |
| What are the nearest relatives to fungi? | Animals |
| What features do land plants have in common with the Charophyte green algae? | They both have chloroplasts, cell walls that are made of cellulose, chlorophyll a and b, both use atypical growth, and they both use starch to store energy |
| Why was the development of vascular tissue and lignin an advantage for the earliest Tracheophytes? | They allowed these plants to colonize new habitats, allowed plants to compete more effectively for sunlight, and allowed plants to survive in habitats that were sometimes very dry. |
| What is symbiosis between fungi and algae called? | Lichen |
| What are dinoflagellates? | Responsible for the red tide that kills large numbers of fish and makes shellfish toxic, they have 2 whip-like flagella, they are symbiotic with corals, can they can photosynthesize |
| What are characteristics of diatoms? | They have silica shells and possess a single flagellum and chloroplasts |
| What are characteristics of ciliates? | They are covered with numerous short cilia (Paramecium) |
| What are characteristics of saracodines? | They use pseudopods to move around (Amoeba) |
| What are the primary functions of roots? | Anchorage and they absorb water and nutrients |
| Why are mycorrhizae important? | They aid in the absorption of nutrients from the soil |
| What is common among all Protista? | They are not Eukaryotes, not animals, not plants, not fungi, and not bacteria or archaea |
| In angiosperms, where is the microgametophyte contained? | The ovule |
| What is the majority of the fungi's body located? | The mycelium |
| What is a micorgametophyte? | A pollen grain |
Created by:
bellalaughlin
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