BIOL 1108: EXAM 1
42 Cards in this Set
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Which one of the following is a term describing a multinucleated organism made up of a single cell?
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coenocytic
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All multicellular organisms have:
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mechanisms for cell-cel adhesion
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Which od the following characteristic of complex multicellularity?
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Interior cells are exposed to a different physical and chemical environment than exterior cells
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Leaves absorb the least amount of light in the green range of the visible spectrum
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true
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Which os the following statements about the evolution of complex multicellularity is true?
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Complex multicellularity evolved independently at least six times in different groups of organisms.
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Arrange the steps in the Calvin Cycle in order from earliest to latest.
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carboxylation, reduction, regeneration
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The most abundant protein on Earth is:
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rubisco
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The Calvin cycle and light-harvesting reactions are separate in ____.
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space
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Tracheids are shorter and thinner than vessels
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true
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The evolution of photosynthesis involved____.
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horizontal gene transfer and endosymbiosis
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Which products(s) of the Calvin cycle is (are) exported form the chloroplast for use by the plant cell?
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triose phosphates
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Which of the following plants would likely be the first to colonize a newly formed volcanic island?
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bryophytes
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True roots first evolved in which lineage of land plants?
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lycophytes
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Where is CO2 stored in a CAM plant?
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in the vacuole
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The wood of gymnosperms is composed of ___; the wood of angiosperms can consist of___.
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tracheids; fibers and vessel elements
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Which of the following statements about transpiration is true?
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Transpiration drives the movement of water form the roots to the leaves
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Which of the following are the major groups of vascular plants?
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angiosperms, lycophytes, gymnosperms, and ferns/horsetails
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An increase in diameter in a plant is called:
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secondary growth
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In lateral growth, the ___ is the source of new xylem and phloem, whereas the renews and maintains the outer layer the protects the stem.
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Vascular cambium; cork cambium
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There are three giant redwoods in California that a person can actually drive through. Imagine that you look up right when you are in the middle of driving through the tree and continue looking up until you exit out the other side. What order of structures would you see as you were drivin…
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Pith, xylem, vascualr cambium, phloem, cork
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You would like to cut down a tree in you backyard, but you have no axe or chainsaw. Instead, you cut around the trunk of the tree with a pocketknife and peel off the "bark" in a three-inch thick strip. Yo are confident that this action will kill the tree. Are you correct?
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Yes, because the phloem has been disrupted and sugar transport will no longer occur.
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A phylogenetic tree is a:
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hypothesis about the evolutionary history of a species
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Characters that are similar because of descent from a common ancestor are ___; characters that are similar due to convergent evolution are___.
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homologous; analogous
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One of the advantages seeds have over spores is that they can delay germination until conditions are favorable for growth.
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true
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Of the following taxonomic catergories, which is the most inclusive: genus, family, order, species, class
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class
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The wings of birds and wings of bats are an example of ____ traits.
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homologous
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Which of the following organisms do not demonstrate a definitive alternation of generations in their life cycles?
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green algae
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In ferns, the__ generation is dominant.
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diploid sporophyte
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The pollen grain is:
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the male gametophyte
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Pines use ___ to disperse pollen, whereas flowering plants rely largely on:___
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wind; animals
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A fruit is a mature:
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ovary
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Double fertilization in angiosperms results in:
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a diploid embryo and a triploid endosperm
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Amoebozoans can be multicellular during part of their lifecycle through:
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aggregation of cells
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Photosynthesis spread through most of the eukaryotic superkingdoms by repeated episodes of endosymbiosis of photosynthetic eukaryotic organisms.
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true
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Which of the following is the best description of algae?
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a photosynthetic protist
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Which superkingdom contains members that are responsible for forming red tides?
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alveolata
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Gymnosperms that produce resin, form male and female cones, and consist of tracheid-based xylem are classified as:
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conifers
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Which of the following groups of land plants appeared in the fossil record most recently?
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angiosperms
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Nearly all the foods we eat come from which group of plants?
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angiosperms
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You are walking along and you see a plant that is small, green, and growing close to the ground. When you look more closely, you see it has a very flexible stem (stall?) and no leaves, but leaf-like structures. You are most likely observing a(n)?
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moss
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Fern leaves emerge as tightly coiled structures called:
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fiddleheads
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Why are eukaryotic organisms so much more diverse than prokaryotic organisms?
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they reproduce sexually, compartmentalize energy metabolism, genomes are larger than those of prokaryotes
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BIOL 1108: FINAL