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Name: __________________ Hr:_____ Date:___________ Ch 9 test review 1. In what type of solutions does water move into and out of a cell? Isotonic 2. If a cell is placed in saltwater, how does water leave the cell? exocytosis 3. List the causes of cancer. Environmental factors, viruses, uv radiation 4. A gene controls the production of __protein_______? 5. What happens to the volume and surface area of a cell as it grows? VOLUME INCREASES SURFACE AREA DECREASES, CAUSING DEATH 6. Explain the things that limit cell size? V/SA RATIO, DIFFUSION, DNA 7. What monitors the cell’s progress from phase to phase during the cell cycle? PROTEINS 8. What structure is responsible for maintaining cell homeostasis? PLASMA MEMBRANE 9. Explain what has happened by the end of prophase? CHROMATIN TO SISTER CHROMATID. CENTRIOLES MIGRATE AND SPINDLES FORM, NUCLEAR ENVELOPE DISAPPEARS 10. What is the longest phase of the cell cycle? INTERPHASE 11. How does a chromatid attach to a spindle fiber? CENTROMERE 12. Of the levels of organization, which one is the most complex? CELLS, TISSUE, ORGANS, ORGAN SYSTEM, ORGANISM 13. Animal cells contain which organelle not found in plant cells? CENTRIOLES 14. Which term includes the others: INTERPHASE, NUCLEAR DIVISION, MITOSIS, CELL CYCLE 15. Which cell process recognizes and transports materials across the plasma membrane moving with the concentration gradient? DIFFUSION 16. In which phase of mitosis do the chromosomes pull apart? ANAPHASE 17. In which phase of mitosis do the chromosomes line up in the middle? METAPHASE 18. Identify what is happening in the beginning and end of prophase? NUCLEAR ENVELOPE DISSAPPEARS, CENTRIOLES MOVE TO OPPOSITE ENDS, CHROMATIN TIGHTLY COIL TO FORM SISTER CHROMATID, SPINDLES START TO FORM 19. Explain the difference between channel and carrier proteins? CHANNEL PROTEINS ALLOW MOLECULES TO PASS WITH OUT THE ASSITANCE OF A TRANSPORT MOLECULE. BOTH HAVE MOLECULAR RECOGNITION. 20. Explained what happened to the iodine and starch solution in the lab? STARCH MOLECULES ARE TOO LARGE TO PASS THROUGH. IODINE PASSED THROUGH THE MEMBRANE. 21. What is it called when the cytoplasm divides? CYTOKINESIS 22. What are the 3 stages of the cell cycle? INTERPHASE, MITOSIS, CYTOKINESIS 23. What are the 4 stages of mitosis? (PMAT) PROPHASE, METAPHASE, ANAPHASE, TELOPHASE 24. WHAT IS THE UNCONTROLLED DIVISION OF CELLS? CANCER 25. WHAT IS THE DARK-STAINING STRUCTURES THAT CARRY GENETIC MATERIAL? CHROMOSOMES 26. WHAT IS AN ENZYME? PROTEIN THAT SPEEDS UP CHEMICAL REACTIONS. LEVELS OF ORGANIZATION (LARGEST TO SMALLEST) Biosphere Biome Ecosystem Community Population Organism Organ system Organs Tissue Cell STUDY MITOSIS DIAGRAM
