Ch3: The Cell

• Characteristics of Life (M-R. G-R-E-N-R.):

  • Movement - changing position
  • Reproduction - making new living things
  • Growth - increasing in size or the number of cells
  • Respiration - releasing energy from food
  • Excretion - getting rid of waste matter
  • Nutrition - eating food
  • Response - reacting to the environment
• Cell - the smallest working unit of an organism
• Animal Cell:

  Cell membrane - protects cell, allows substances in and out of the cell

  Ribosome - Makes proteins

  Cytoplasm - watery fluid of salts and food where cells float

  Mitochondria - where energy from respiration is released to

  Nucleus - carries genes which control cell activity
• Plant Cell:

  Chloroplast - carries chlorophyll, used to make food in photosynthesis

  Vacuole - inside cytoplasm, where food and water are stored

  Cell wall - made of cellulose, provides protection for cell

  Cell membrane - protects cell, allows substances in and out of the cell

  Ribosome - Makes proteins, ex) enzymes

  Cytoplasm - Watery fluid of salt and food where organelles float

  Mitochondria - where energy from respiration is released

  Nucleus - carries genes which control cell activity