bio b8 and b9

• how are leaves adapted for photosynthesis?

  thin- can diffuse easier

  Wide and flat- large surface area so as much light can be absorbed

  Veins- carry water from the xylem

  Stomata- allows co2 to diffuse in
• Symbol equation for photosynthesis?

  6CO2 + 6H2O -> C6H12O6 + 6O2
• Word equation for photosynthesis?

  Carbon dioxide + water (light, chlorophyll) -> glucose + oxygen
• explain the process of photosynthesis?

  1. cO2 diffuses into the leaves via stomata
  2. Water is taken up the roots and transported to the leaves via the xylem
  3. Then the water, co2 and minerals into glucose and oxygen
• What is photosynthesis?

  Photosynthesis is the process by which plants convert sunlight, carbon dioxide, and water into glucose and oxygen. (taking place in the chloroplasts)
• What are the 3 limiting factors of photosynthesis?

  Light, temperature, carbon dioxide
• How does light intensity affect photosynthesis?

  The higher the light intensity the greater the rate of photosynthesis
• How does CO2 affect photosynthesis?

  The increase in CO2 levels increase the rate of photosynthesis
• What is glucose used for in plants?

  • Cellular respiration
  • Cellulose
  • Stored to used later
  • Converted into amino acids which help growth
  • Energy
• How does temperature affect photosynthesis?

  The higher the temp the increased rate of photosynthesis because enzymes move quicker

  If temperature is TOO HIGH enzymes can denature
• How can famers artificially create better conditions for photosynthesis?

  Greenhouses

  Fertilisers

  Artificial light

  Paraffin heaters
• Where does aerobic respiration take place?

  Mitochondria
• Word and symbol equation for aerobic respiration?

  Glucose + Oxygen -> Carbon Dioxide + Water + Energy

  C6H12O6 + 6O2 -> 6CO2 + 6H2O
• Functions of the liver?


  Detoxifies ethanol and passes products into the blood so they can be excreted into urine via kidney

  Breaking down old blood cells and storing their iron
• Anaerobic respiration equation in yeast?


  Glucose -> ethanol + CO2
• What is anaerobic respiration in yeast caused by?

  Fermentation
• What is the word equation for anaerobic respiration?

  glucose -> lactic acid + water
• What is anaerobic respiration

  cellular respiration that occurs without oxygen.
• What does the hepatic artery do?

  brings deoxygenated blood to the liver
• what does the hepatic vein do?

  carries blood from the liver to the heart