biology paper 1

    Cards (15)

    • definition of a cell
      basic building blocks of all living things
    • definition of a tissue
      a bunch of similar cells working together to preform a specific function
    • definition of an organ
      a group of similar tissues working together to preform a specific function
    • definition of an organ system
      a group of organs working together to preform a specific function
    • whats an enzyme
      an enzyme is a biological catalyst
    • whats a digestive enzyme
      digestive enzymes break down insoluble food molecules
    • what does the stomach contain
      hydrochloric acid and enzymes
    • what is the active site complementary to?
      the substrate
    • amylase is in: salivary glands, pancreas and small intensine
    • protease is in:
      stomach, pancreas, small intestine
    • lipase is in:
      pancreas, small intestine
    • to find protein what do you use and what colour means positive
      biuret reagent and purple
    • to find starch what do you use and what colour means positive
      iodine and black
    • to find fats what do you use and what colour means positive
      ethanol and cloudy
    • to find glucose what do you use and what colour means positive
      benedicts solution and a water bath, and orange