CELL'S

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Author:
amenezes
ID:
279952
Filename:
CELL'S
Updated:
2014-07-29 20:10:53
Tags:
Biology cells
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Description:
for Cell test
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  1. What is cell theory?
    Cell theory states that  all organisms are composed of cells. Cells are the basic unit of life, they arise from pre-existing cells.
  2. What are the characteristics used to define life? (MRS GREN)
    Movement: All living things move, even plants as they grow towards sunlight. 

    Reproduction: All organisms need to reproduce to keep the species going so they don't die out. (Plants produce seeds)

    Sensitivity: Organisms need to be aware of thier surroundings. 

    Growth: All living things grow and get bigger

    Respiration: All organisms need energy so they can perform tasks, obtained from food

    Excretion: All organisms make waste. 

    Nutrition: All living things need food. Plants cook food through photosynthesis.
  3. What is the difference between Prokaryotic & Eukaryotic cells?
    • Prokaryotic cells are  do not have a membrane bound nucleus 
    • eg: bacteria 

    Eukaryotic cells have membrane a membrane bound nucleus, they also containe other membrane bound organell's, such as mitochondria and golgi bodies.
  4. What is the equation of Photosynthesis?
    6CO2 + 12H2O + -----> C6H12O+ 6O2 + 6H2O

    Carbon dioxide+Water--->Glucose+Oxygen+Water
  5. What is the equation for Cellular Respiration?
    C6H12O6+6O2---->6CO2+6H2O+Energy

    Glucose+Oxygen---->Carbon Dioxide+Water+Energy
  6. What is a nucleus? Where is it present?
    It is the control center of the cell & holds DNA (chromosomes) 

    • Found in these cells:
    • Animal
    • Plant
    • Fungi
    • Protist
  7. What is a Mitochondria? Where is it found?
    Site of Cellular Respiration, where energy is produced. 

    • Found in these cells:
    • Animal
    • Plant
    • Fungi
    • Protist ( usually)
  8. What is a Ribosome? Where is it found?
    It isn't membrane bound and is tiny. It present in Eukaryote and Prokaryote cells. And is the site of Protein Synthesis

    • It is Found in All cells:
    • Animal
    • Plant
    • Fungi
    • Protist
    • Monera
  9. What is an Endoplasmic Reticulum? Where is it found?

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