photosynthesis

Cards (22)

  • photosynthesis -process by which plants make food using carbon dioxide ,water and light
  • glucose- simple sugar
  • endothermic reaction takes energy from the surroundings /shown by fall in temperature
  • equation
  • limiting factor something which limits the rate of a reaction
  • limiting factors
  • what is glucose used for in plants
    glucose respiration -to release energy
    making cellulose -makes cell walls
    making starch -for energy
    making amino acids -to make protein for growth
    making lipids-fat molecules
  • aerobic respiration the process of cellular respiration that takes place in the presence of oxygen to realise energy from food
  • limiting factor
  • respiration equation
  • photosynthesis absorbs energy while respiration releases products of respiration are the reactants of photosynthesis
  • aerobic respiration and combustion have these in common
    release of energy ,both involve oxygen ,both involve fuel and products are similar(carbon dioxide and water)
  • uses from energy from respiration
    muscle contraction ,building up molecules, keeping warm, turning sugar and nitrates into amino acids
  • the main source of stored chemical energy for respiration is glucose is glucose and oxygen
  • anaerobic respiration is repiration without oxygen
  • anaerobic respiration
  • when muscles work for a long time they become tired if they don't get enough oxygen they will respire anaerobically
  • the amount of oxygen needed to convert the lactic acid to glucose is known as oxygen debt
  • oxygen debt repayment
    lactic acid +oxygen -carbon dioxide +water
  • anerobic respiration inyeast cells is known as fermentation
  • in yeast
    glucose -ethanol +carbon dioxide (energy transferred to the environment)
  • glycogen is a large insoluble carbohydrate molecule stored in the muscles ,liver and brain