biogenetics

• photosynthesis: carbon dioxide + water -> glucose + oxygen
• photosynthesis:

  A)

  
• photosynthesis takes place in chloroplasts- they contain pigments like chlorophyll that absorb light
• photosynthesis is endothermic because it requires energy from the environment
• what are the 5 main ways plants use glucose

  1. respiration
  2. making cellulose
  3. making amino acids
  4. stored as oil and fats
  5. stored as starch
• the rate of photosynthesis is affected by light, temperature and concentration of co2
• chlorophyll can also be a limiting factor for photosynthesis
• the enzymes needed for photosynthesis work more slowly at low temperatures, but if the plant gets to hot the enzymes can become denatured
• respiration is the process of transferring energy from glucose, which goes on in every cell
• aerobic respiration needs lots of oxygen
• most of the reactions for aerobic respiration happen in mitochondria
• aerobic respiration: glucose + oxygen -> carbon dioxide + water
• anaerobic respiration is used if there isn't enough oxygen
• anaerobic respiration: glucose -> lactic acid
• anaerobic respiration doesnt transfer as much energy as aerobic respiration
• anaerobic respiration in plants and yeast cells: glucose -> ethanol + carbon
• anerobic resperation in yeast cells is called fermentation
• after anaerobic respiration you'll have an oxygen debt this means you will keep breathing heavily for a while