Emilia

• What is the init of activity

  Bq
• What is nuclear fission

  The process if 1 larger nucleus splitting into 2 or more
• What is irradiation 


  When an object is exposed to ionising radiation
• How do we typically start nuclear fission reactions

  By firming neutrons at a material
• What is radioactive contamination 


  The unwanted presence of radioactive atoms on or in an object
• What is ionisation 


  The process of removing electrons from atom to form ions
• What are the structures of fullerenes made up of

  Rings of carbon atoms usually 6 to a ring
• What makes nanotube useful

  A high length to diameter ratio
• What is activity 


  Rate at which decay occurs
• Use of nano particles

  Medicine electronics catalysts
• What is fullerene 


  Molecules made up of carbon atom with Hallow shapes
• Radiation dose 


  Measure if risk of harm to your body due to exposure to radiation
• Adaptations of xylem tissue

  Halloween tubes strengthened by lignin
• What is chloroplast filled with

  Chlorophyll
• Function of gall blader


  To store bile until it is released into small intestine
• Function of large intestine

  Absorb water from digested food
• If an animal cell gains a lot of water what happens

  can burst and die
• 3 plants organic systems 


  Leave stems roots
• From what reaction does the energy required for active transport come

  Respiration
• Word equation for Photosynthesis

  Carbon dioxide +water >glucose+oxygen
• What causes random error 


  By misreading equipment
• State the function of the pancreas

  Produces digestive enzymes
• State the function of the gall bladder

  Stores bile before release into small intestine
• Name the tube that carries food from the mouth to the stomach

  Oesophagus
• Where do you get adult stem cells in animals

  Bone marrow
• Define Active transport

  The site on an enzyme where the substrate binds
• Define organ 


  A group of tissues working together for specific function
• What are carbohydrates made up of

  Simple Sugar
• What are proteins made up of

  Amino acids
• Why do enzymes stops working past their optimum tempreture

  Denatured substrate can no longer find to active site
• Define denatured 


  Change in shape of active site so substrate no longer fits
• Where do you get stem cells in plants

  Meristems
• Define enzyme 


  A biological catalyst that speeds up chemical reaction
• Define metabolism 


  Sum of all reactions in a cell body
• State one medical scientific benefit of therapeutic cloning

  No rejection problem
• Whay symbol do we use for relative formula mass

  Mr
• When a metal forms metal oxide why does the mass increase

  Because oxygen atoms have been added
• Explain why some metals are more reactive than others

  They loose electrons more easily
• What is the conservation of mass

  Atoms can NOT be created or destroyed
• When an acid reacts with a metal why does the mass decrease

  Because a gas is produced and escapes