Biology

• Components of a community

  • Living organisms
• What is a community

  living organisms in the same place
• Ecosystem

  Living and non living factors In the same place
• Photosynthesis

  Carbon dioxide+water>glucose+oxygen
• Mass number

  Protons + neutrons
• Neutrons

  Mass number -atomic number
• atomic number

  Electrons
• What type of cell are bacteria

  Prokaryotic
• In what process do cells become specialised

  Cell differentiation
• Mutation

  Random change in the DNA that can be inherited
• What type of enzyme is produced in the stomach

  Protease
• How do you test for starch

  Iodine solution
• How do you test for protein

  Biuret reagent
• How is the palisade layer adapted for photosynthesis

  It has chloroplast
• What is the control variable

  The thing you keep the same
• What is the independent variable

  The thing you change
• what is the dependent variable

  Something you measure
• What are 2 similarities of a bacteria cell and an animal cell

  both have cytoplasm

  both have a cell membrane
• What is the biological structure smallest to biggest

  Gene

  chromosome

  nucleus

  cell
• Why is cell division important

  So It can repair or replace cells