BIOLOGY- Bioenergetics

• Word equation for photosynthesis: Carbon dioxide + water -> glucose + oxygen
• Balanced symbol equation for photosynthesis:

  6CO2 + 6H2O —> C6H12O6 + 6O2
• Photosynthesis occurs in the chloroplasts in leaves of a plant
• Type of energy used in photosynthesis: Light energy
• limiting factor is anything that limits the rate of photosynthesis, such as light intensity, temperature, CO2 concentration, or amount of chlorophyll
• Increasing light intensity affects the rate of photosynthesis by increasing rate of photosynthesis
• Cellular respiration is the process of breaking down glucose to release energy- occurs in the mitochondria of living cells
• Aerobic respiration uses oxygen and produces carbon dioxide and water
• Anaerobic respiration does not use oxygen and produces lactic acid.
• Word equation for aerobic respiration: Glucose + Oxygen → Carbon dioxide + Water
• Word equation for anaerobic respiration in muscles: Glucose → lactic acid
• word equation for anaerobic respiration in plant and yeast cells: glucose ---> carbon dioxide + ethanol
• Anaerobic respiration in yeast cells is known as fermentation.
• During long periods muscles become fatigued and stop contracting efficiently
• Oxygen debt is amount of oxygen the body needs after exercise to react with the accumulated lactic acid and remove it from cells