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| root hairs are part of the |
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| what plants produce swimming sperm? |
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| the triploid nutritive tissue in angiosperm seeds is called |
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| megasporangium is found in a _______sporous plant |
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| the organelle that helps a euglenid or ciliate avoid bursting is the |
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| an organism that can obtain carbon nutrition either by carbon fixation (P.S.) or ingestion of organic compounds is |
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| The organisms that cause "red tide" poisoning are |
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| which "kingdoms" in the 5-kingdowm system of classification are no longer recognized? |
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| the plants that gave rise to coal deposits through the process of fossilization were |
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| what is closely related to diatoms? |
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-they tend to be very acidic
-they often contain carnivorous plants
-they have low rates of decomposition |
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| in alternation of generations, meiosis occurs in the |
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Which of the following specifically suggests that charophyceans (not just green algae) are the
closest relatives of the green plants? |
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Definition
| shared possession of rosette cellulose synthesizing complexes |
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Term
| In plant cells, transport proteins known as proton pumps |
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Definition
actively transport protons out of the cell producing a proton and electrochemical gradient
across the plasma membrane. |
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Definition
forces water and minerals that are moving through the apoplast to cross the plasma
membrane of an endoderm cell before entering the xylem vessels. |
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Definition
stomata are open at night and can be closed during the day, thus reducing water
evaporation. |
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During transpiration, which of the following is part of the transpiration-cohensiontension
mechanism for the ascent of xylem sap? |
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Definition
loss of water from the mesophyll cells, which initiates the pull of water from neighboring
cells.
- transfer of transpirational pull from one water molecule to the next, due to cohesion by
hydrogen bonding.
-hydrophilic walls of tracheids and vessels (xylem) that help overcome the gravitional pull
on the column of water. |
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Term
If water flows from a region of more positive (higher) water potential to a region of more
negative (lower) water potential, how does the water potential in the root compare to that in the
soil outside the root? |
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Definition
| The water potential in the soil must be higher than it is in the root. |
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| diploid nutritive tissue, embryonic leaves |
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| triploid nutritive tissue |
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| those large colorful things on the outside |
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| look like little green petals on the bottom |
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| tops on long stringy things in between ovule and leaves |
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Definition
| cuticle -> vascular system -> pollen -> double fertilization and carpel |
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Term
| In what ways does the gametophyte of a moss resemble that of an angiosperm? |
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Definition
| haploid, multicellular, produce gametes via mitosis |
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Term
| In what ways does the gametophyte of a moss differ from that of an angiosperm? |
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Definition
| moss has one bisexual gametophyte/ angiosperm has unisexual micro/ mega spores...moss has a dominant free-living gametophyte, is highly reduced in angiosperms |
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| how is Phytophthora infestans like fungus? |
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Definition
filamentous, heterotrophic with absorptive nutrition (plant pathogen)
Stramenopile (heterokont) flagella on swimming spores |
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Term
| What does the name “Archaeplastida” mean? |
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Definition
| ancient chloroplast, Appropriate because this is the group that has chloroplasts derived by primary endosymbiosis |
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| What three major groups of organisms are in Archaeplastida |
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Definition
| red algae, green alage, and plants |
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