Term
| Land Plants evolved from... |
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Definition
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Term
| What evolved from green algae? |
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Definition
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Term
| Moses and other nonvascular plant have life cycles dominated by _____ |
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Definition
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Term
| What formed the first forests? |
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Definition
| Ferns and other seedless vascular plants |
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Term
Clicker question:
Evidence indicates that plants increase the number of stomata in their leaves as atmospheric CO2 levels decline. Increasing the number of stomata per unit surface area should have the effect of doing which of the following?
1. increasing dehydration of leaf tissues
2 decreasing dehydration of leaf tissues
3. countering the effect of declining CO2 on photosynthesis
4.reinforcing the effect of declining CO2 on photosynthesis |
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Definition
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Term
| What do Chlorophytes include? (Three things) |
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Definition
| Unicellular, colonial, multicellular forms |
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Term
| 5 key traits that land plants share only with charophyceans |
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Definition
- similarities in cellwall synthesis
- Photorespiratory enzymes
- Structure of sperm
- Similarities during cell division
- Homologous chloroplast
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Term
| What are 5 key traits that appear in nearly all land plants but absent in charophyceans? |
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Definition
- Apical meristems
- Alternation of generations
- Walled spores produced in sporangia
- Multicellular gametangia
- Multicellular dependent embryos
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Term
| Alternation of Generations: Two multicellular bodies (figure) |
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Definition
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Term
Think-Pair-Share
Why would the vascular system be so important for land plants? |
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Definition
- Availability of water to the system
- Root system had greater access to water>moisture goes to shoots
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Term
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Definition
| waxy covering on the surface of a plant |
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Term
| How can land plants be informally grouped? |
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Definition
| On the presence or absence of vascular tissue |
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Term
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Definition
| Cells joined in tubes to transport water and nutrients |
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Term
| Role that hormones have on dormancy on seeds (2 hormones) |
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Definition
Giberellum breaks dormancy
ABA keeps dormant
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Definition
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Term
| Three examples of Byrophytes |
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Definition
- Liverworts
- Hornworts
- Mosses
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Term
| Two types of vascular plants |
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Definition
- seedless vascular plants
- seed vascular plants
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Term
| Bryophytes-Three Phyla of herbaceous plants |
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Definition
- Liverworts
- Hornworts
- Mosses
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Term
Bryophyte diversity: Mosses
(where sporophyte and gametophyte are located) |
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Definition
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Term
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Definition
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Term
Bryophyte diversity: Liverworts
(where Gemtophore of female gametophyte and sporangium are located) |
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Definition
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Term
Bryophyte diversity: Hornworts
(location of sporophyte and gametophyte) |
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Definition
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Term
Ecological and Economic Importance of Mosses
(Sphagnum aka "peat moss") |
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Definition
- Forms extensive deposits known as peat
- Earth's carbon cycle
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Term
| What size are gametophytes? |
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Definition
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Term
| ________ of seedless vascular plants are the larger generation. |
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Definition
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Term
| Two general groups of seedless vascular plants |
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Definition
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Term
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Definition
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Term
| What two types of vascular tissues are in vascular plants? |
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Definition
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Term
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Definition
| Conducts water and minerals |
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Term
| What does Xylem consist of? |
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Definition
| Dead cells called tracheids |
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Term
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Definition
| dead cells in the xylem that conduct water and minerals |
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Term
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Definition
| Distributes sugars, amino acids, and other organic products |
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Term
| What does Phloem consist of? |
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Definition
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Term
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Definition
| Organs that anchor vascular plants |
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Term
| What is the function of Roots? |
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Definition
| To absorb water and nutrients from the soil |
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Term
| Why are Leaves important? |
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Definition
| They increase surface area to capture solar energy |
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Term
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Definition
| Leaves with a single vein |
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Term
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Definition
| Leaves with a highly branched vascular system |
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Term
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Definition
| Modified leaves with sporangia |
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Term
Sporophylls and Spore Variations (figure)
Homosporous vs Heterosporous |
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Definition
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Term
Homosporous spore production
Where>type of spore>what kind of gametophyte>where does it go? |
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Definition
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Term
Heterosporous spore production
Where>type of spore>what kind of gametophyte>where does it go? |
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Definition
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