bioenergetics

• Glycolysis is an anaerobic process, meaning it does not require oxygen.
• Aerobic (uses less oxygen and more energy )
• Photosynthesis- a process by which green plants and other organisms use sunlight to synthesize nutrients from carbon dioxide and water
• Photosynthesis in plants generally involves green pigment called chlorophyll and generates oxygen as a by-product
• The equation for photosynthesis is: Carbon dioxide + water -> glucose + oxygen
• The effect of light in photosynthesis Can be investigated by using water plants. Using pondweed which are sold in Aquarian shops or can be grown in a tank to pick, the plants will release bubbles of oxygen which is also a product of photosynthesis which can be counted 1 by 1
• Plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar (glucose).
• Photosynthesis when it occurs in water plants/tanks can produce algae on the glass tank and algae can even perform photosynthesis to spread
• We measured the amount of oxygen released into the air above both tanks at regular intervals throughout the day.
• One tank contained water plants that were not exposed to any light source. This allowed us to compare how much oxygen was produced between the two tanks over time.
• Investigating Photosynthesis - The experiment was conducted with two tanks containing water plants. One tank had no access to light while the second one did have access to light.
• Investigating how much oxygen was produced over time allowed us to determine if there were any differences between the two types of plants.
• Examples of anaerobic respiration are:

  alcoholic fermentation

  glycolysis
• Examples of aerobic respirations are:

  The breathing of all multicellular organisms

  -Birds

  -insects

  -humans

  -bacteria

  -animals
• Ethanol Fermentation occurs in yeast cells used to make beer and bread.
• Lactic Acid Fermentation occurs in muscle cells during intense exercise when oxygen supply cannot keep up with demand.
• Glycolysis is the breakdown of glucose into pyruvate, which can be converted into ethanol or lactic acid by other enzymes.
• Glycolysis is the first step in both aerobic and anaerobic respiration, but it only produces ATP in anaerobic respiration.
• Anaerobic Respiration does not require oxygen as it uses different electron acceptors such as nitrate (NO3-) instead of O2.
• During Aerobic Respiration, NADH donates electrons to the electron transport chain, producing energy through oxidative phosphorylation.
• Anaerobic Respiration does not require oxygen as a reactant.
• Cellular Respiration converts food molecules (glucose) into energy-rich compounds like ATP.
• Aerobic Respiration requires oxygen and involves both cellular respiration and oxidative phosphorylation.