Bioenergentics

• What is the word equation for aerobic respiration?

  glucose + oxygen -> carbon dioxide + water

  
• Which are the products of aerobic respiration?

  Carbon dioxide and water

  
• What are the reactants of aerobic respiration?

  Glucose and oxygen

  
• Where does aerobic respiration happen?

  mitochondria

  
• Respiration is a ___________ reaction

  Exothermic

  
• What is the chemical formula for glucose?

  C6 H12 O6

  
• Respiration is...


  releasing energy from glucose
• Test for carbon dioxide

  Carbon dioxide turns limewater cloudy

  
• Test for carbon dioxide

  Cloudy limewater

  
• Which type of respiration releases the most energy?

  Aerobic

  
• What is anaerobic respiration?


  respiration without oxygen

  
• Which of these causes muscle cramp?

  Build up of lactic acid

  
• anaerobic respiration produces


  Lactic acid and energy

  
• What happens to breathing rate when you exercise


  it increases

  
• What happens to your heart rate when you exercise?


  it increases

  
• oxygen debt


  the amount of oxygen required after physical exercise to convert accumulated lactic acid to glucose

  
• Why do we breath faster when we exercise?

  To supply more oxygen to muscles

  
• Why is exhalation important in exercise?

  to get rid of excess carbon dioxide

  
• What does aerobic mean?

  with oxygen

  
• Metabolism


  All of the chemical reactions that occur within an organism
• Lipids are made from

  fatty acids and glycerol

  
• Proteins are made up of

  amino acids

  
• What is the word equation for photosynthesis?

  Carbon dioxide + water -> glucose + oxygen

  
• products of photosynthesis


  glucose and oxygen

  
• What does xylem carry?

  water and minerals

  
• What do stomata do?

  Take in carbon dioxide, and release the oxygen produced in photosynthesis

  
• pallisade cells


  Specialised cells in a leaf containing chloroplasts where photosynthesis takes place.

  
• Pond weed experiment (required practical)

  -in water, watch the bubbles release

  -count the number of bubbles per minute

  -estimates how fast photosynthesis takes place

  -independent variable: light intensity

  -dependent variable: number of bubbles

  -control variable: same species, same length, same temp, same pH

  
• independent variable (IV)


  The variable you change

  
• Dependent Variable (DV)


  The Variable you measure or observe

  
• control variable


  The variable you keep the same

  
• 4 marker Why does your heart beat faster when you exercise?

  To deliver more blood to the muscles

  With oxygen

  And glucose

  To give your muscles energy

  In respirations

  
• 3 marker Why do you breathe faster when exercising?

  To get more oxygen

  To give your muscles energy

  In respirations