BIO EXAM 3 - 1 1 Cuticle Protective coating secreted by the...

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1 1. Cuticle Protective coating secreted by the outer most layer of cells of an animal or plant: waxy coating that prevents water loss 2. Virus Tiny intracellular parasite that uses host cell enzymes to replicate; enveloped consisting of a capsid surrounded by a phoshpolipid bilayer, with DNA or RNA genomes in its protein shell 3. Homospory In seedless vascular plants, the production of just one type of spore 4. Phsophorlyation cascades Change in receptor protein’s shape leading to the addition of phosphate groups from the ATP to a receptor or protein 5. archegonia Egg producing structre in most land plants except angiosperms 6. Phototropism Growth or movement of an organism in a particular direction in response to light 7. Out Cross Sperm and egg from different individuals that combine to form a viable zygote 8. Sepal Leaf like structures that make up the outer most parts of the flower 9. Auxin Stimulates phototropism and other responses; first plant hormone ever discovered 10. tracheid In vascular plants, a long thin water conducting cell that has gaps in its secondary cell wall, allowing water movements between adjacent cells 11. Dicot Any plant that has 2 cotyledons upon germination 12. Embryo sac Female gametophyte in flowering plants that exhibit alternation of generation 13. micronutrients Any elemnt that is required in small quantities for normal growth, reproduction and maintance of living organisms 14. Roots Underground part of a plant that anchors the plant and absorbs water and nutrients (bottom most ancient node) 15. Bacteriophage Any virus that infects bacteria 16. Ground Meristem Middle layer of a young plant embryo; gives rise to ground tissue system 17. Vessel Elements In vascular plants, a short wide water conducting cell that has gaps through both the primary and secondary cell walls, allowing unimpeded passage of water between adjacent cells 18. Micot
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2 Any plant that has a single cotyledon upon germination 19. Blade Wide flat part of a plant leaf 20. Diploid 2 sets of chromosomes (from paternal and maternal parents) 21. Signal Transduction Receptor changes in shape in response to a stimulus, then the info changes form- from external to intracellular signals 22. Alternation of Generation Life cycles involved in alternation of a multicellular haploid stage with a multicellular diploid stage 23. Stramenopila If flagella are present, cells usually have 2, one of which is covered with hairlike projections 24. Flagellum Long, cellular projection that undulates (eukaryotes) and rotates in prokaryotes to move the cell through aqueous enviornments 25. Heterospory In seed plants, the production of two distinctive types of spore producing structures and 2 distinctive types of spores; mega and micro 26. Microphyle Opening in the ovule and the pollen tube reaches the embryo sac 27. Binary Fission Form of asexual reproduction in which a prokaryotic cell divides to produce 2 genetically similar daughter cells 28. Haploid One set of chromosomes
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BIO EXAM 3 - 1 1 Cuticle Protective coating secreted by the...

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