Living Environment Cells and Transport

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Living Environment Cells and Transport
2012-05-29 23:23:27
Living Environment Bio Cells Transport Organelles

Living Environment Cells and Transport Review for the Regents Exam
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  1. What are the nine characteristics of life?
    Excretion, Growth, Respiration, Transport, Regulation, Synthesis & Assimilation, Metabolism (which is the most important and really is all of the processes), Nutrition, and Reproduction (not required by an individual but it is to apecies)
  2. What do each of the life processes do?
    Excretion disposes of wastes, growth is growing and getting bigger, respiration is making energy, transport is moving molecules around, regulation is regulating the processes, synthesis & assimilation is making things and using them, metabolism is all of the chemical reactions in the body, nutrition is getting food molecules to be respirated for energy, and reproduction is making more of one's self.
  3. What is an organelle?
    A small structure in a cell with a specific function, like mitochondria.
  4. What is a cell?
    The basic unit of life, like a muscle cell.
  5. What is a tissue?
    A group of similar cells, like muscle tissue.
  6. What is an organ?
    A group of tissues that perform a specifc function, such as a heart.
  7. What is an organ system?
    A group of organs that work together to carry out specifc functions, like the circulatory system.
  8. What is the job of the Mitochondria?
    It is the site of cellular respiration where energy is made.
  9. What is the job of a vacuole?
    To store food, water, and wastes for later use in a cell.
  10. What is the job of the cytoplasm?
    Protect the organelles and them something to move around in.
  11. What does the cell membrane do?
    It protects the organelles from the otside world. It also lets things in and out of the cell.
  12. What is the job of the nucleus
    To hold genetic information, DNA.
  13. What is the job of the ribosome?
    To synthesize proteins.
  14. What is the cell membrane made of?
    Phospholipids (fats) and proteins.
  15. What does a cell membrane look like?
    If you don't know, look back in your notes!
  16. What is diffusion? Does it require energy?
    Diffusion is the movement of molecules of a high concentration to low concentration. It does not require energy.
  17. What is active transport? Does it require energy?
    Active transport is the movement of molecules from a low concentration to high concentration. It does require energy.
  18. What are proteins made of?
    Amino Acids
  19. What are carbohydrates made of?
    Simple sugars
  20. What is the role of a receptor molecule?
    Receive a chemical message.