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Bio Exam 1 - Antonio Alarcon Bio 1 Answer Key 1 Transport...

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Antonio Alarcon Bio 1 Answer Key 08/18/07 1. Transport – Movement from one point to another Execretion – Separation and elimination of wastes from the body Nutrition – Process by which an organism takes in and uses food Regulation – Maintaining 2. Coelenterates – (obsolete) yet common term encompassing two animal phyla, the centophora (comb jellies) and the cnidaria Annelids – Means little ring, consists of the segmented worms Arthropods – Largest phylum of animals (insects, arachnids, and crusteatins). Are characterized by a segmented body and numerous appendages on each segment Chordates – Group of animals that includes the vertebrates and invertebrates, united by having (at some point) a notochord (dorsal nerve chord) 3. Cell theory – Living things containing units of structure and function that arise from preexisting units 4. Cell walls and choloroplasts – Most likley would be observed in cells in the low- power field of a compound light microscope 5. The synthesis of enzymes would stop – Ribosomes are responsible for the building of proteins/enzymes from genetic instruction. The above would occur if the ribosomes within a cell were not functioning 6. Water – Most of the chemical reactions occuring in a living cell depend on the presence of this inorganic compound (of mineral, not biological origin) 7. Living matter is able to control chemical activities with organic catalysts – As opposed to being able to diffuse materials, create energy, and use energy for metabolic activites, nonliving matter CANNOT control chemical activites with organic catalysts 8. Ameba - Nucleus – Control center of the cell, houses the genetic material, Not primarily used for gas exchange Earthworm - Nephridia – Invertebrate organs, function similar to kidneys, Not primarily used for gas exchange
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Grasshopper - Tracheal tubes Human – Skin – Used for protection, Not primarily used for gas exchange 9. A + B A + B + D – Accuratley depicts the process of nutrition (Process by which an organism takes in and uses food) within the leaf 10. B and D – Indicate the necessary substances needed by a leaf to carry out the process of aerobic cellular repiration (Glucose and Oxygen) 11. See Bio Exam 1 12. Involves absorption of material into cells, follwed by cyclosis (circulation or streaming of cytoplasm) [similar to bloodflow] – Accuratley describes the process of transport (Movement from one point to another) 13. (See Bio Exam 1 for picture) Diffusion and active transport – Materials enter at the root of plants by the means of diffusion and active transport 14. Human – The earthworm, classified as an Annelid, is a coelomate animal (meaning it has a closed circulatory system and true segmentation). This is most comparable to the human Geranium – A plant, an acoelomate (lacks segmentation) Hydra – A small fresh-water animal, an acoleomate Ameba – Protozoa (uni-cellular), an acoleomate 15.
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