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Exam (elaborations)

BIO 121 Final Exam / BIOS 256

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BIO 121 Final Exam / BIOS 256 Exam 2 Q&A Comprehensive ATI What are the 4 characteristics of life? - CORRECT ANSWER-1. Energy 2. Development/Growth 3. Reproduction 4. Population/Evolving What is the difference between Prokaryotic and Eukaryotic Cells? - CORRECT ANSWER-Prokaryotes - NO nucleus Eukaryotes - nucleus and other structures What is the difference between Active and Passive Transport? - CORRECT ANSWER-Active - proteins move against the concentration gradient (L - H) Passive - proteins move with the concentration gradient (H - L) the cell's DNA - CORRECT ANSWERNucleus powerhouse of the cell - CORRECT ANSWER-Mitochondria helps proteins go in/out of the cell - CORRECT ANSWER-Rough Endoplasmic Reticulum assembles membranes and functions in the cell - CORRECT ANSWER-Smooth Endoplasmic Reticulum mailbox - packages products for transport - CORRECT ANSWER-Golgi Apparatus breaks down garbage - CORRECT ANSWER-Lysosome assembles proteins - CORRECT ANSWERRibosome outside of the nucleus - CORRECT ANSWER-Cytoplasm What is the structure and function of the cell membrane? - CORRECT ANSWER-It serves as the cell's skin that controls what goes into and out of the cell What does Mitosis produce? - CORRECT ANSWER-Two daughter cells that have the same genetic information as the parent cell Why is Mitosis important? - CORRECT ANSWER-By producing new cells - our bodies are replacing old, lost, damaged ones -- essential for our growth What is the order of Mitosis? - CORRECT ANSWER-Prophase Metaphase Anaphase Telophase Cytokinesis - Chromosomes condense - Nuclear Membrane breaks down - Mitotic spindle fibers start to form - CORRECT ANSWER-Prophase - Nucleus dissolves - Chromosomes align at the middle of the cell - CORRECT ANSWER-Metaphase - Sister chromatids pull apart - Move to opposite poles of the cell - CORRECT ANSWER-Anaphase - New nuclear membranes form - Chromosomes un-condense - CORRECT ANSWER-Telophase the cell divides in two (occurs after Mitosis) - CORRECT ANSWER-Cytokinesis What is the order of Meiosis? - CORRECT ANSWERa protein that is a catalyst - CORRECT ANSWER-enzyme speeds up chemical reactions by lowering the activation energy - CORRECT ANSWER-catalyst Wh are enzymes important? - CORRECT ANSWER-It can catalyze over and over again because they are unchanged by the reaction

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