photosynthesis

• 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