Bioenergetics

• How do plants absorb light energy ?

  chlorophyll
• What type of reaction is photosynthesis?

  endothermic
• What is glucose produced by photosynthesis used as ?


  food for plant
• Word equation for photosynthesis ?

  
• Symbol equation for photosynthesis ?

  
• When do plants use glucose from photosynthesis ?

  during respiration
• What is glucose used for ?

  to make cellulose
• What can stored glucose be turned into ?

  starch
• Can starch be dissolved in water ?

  insoluble
• What can stored glucose make ?

  oil and fat
• List 4 places glucose is stored in plants ?

  roots, stalks, leaves, seeds
• Where are fats and oils stored in plants ?

  seeds
• What can nitrate ions and glucose produce ?

  amino acids
• List 3 things which afffect the rate of photosynthesis ?

  light intensity, carbon dioxide concentration, temperature
• When does photosyntheiss occur faster ?

  higher light intenisties
• How does carbon dioxide concentration affect the rate of photosynthesis?

  faster rate of photosynthesis
• How does temperature affect the rate of photosynthesis?

  occurs faster
• How do denatured enzymes affect photosynthesis ?

  cause it to stop
• Define limiting factor ?


  any condition in short supply can affect photosynthesis
• List 3 limiting factors of photosynthesis ?

  light intensity, temperature, carbon dioxide
• What is the light intenisty and distance rule ?

  
• What does cellular respiration do?

  transfers energy to organisms for food
• What type of reaction is respiration ?

  exothermic
• What are the types of respiration ?

  aerobic and anaerobic
• Define aerobic respiration ?

  uses oxygen
• Define anaerobic respiration ?

  no oxygen present
• What occurs in aerobic respiration?

  glucose and oxygen are converted to carbon dioixde and water
• In aerobic respiration what happens to glucose ?

  completely oxidised
• Aerobic respiration formula ?

  
• Anaerobic respiration formula ?

  
• Where does anaerobic respiration occur ?

  muscles
• What happens to glucose in anaerobic respiration ?

  glucose is not completely oxidised so less energy released
• What is anaerobic respiration in yeast cells called ?


  fermentation
• Fermentation equation ?

  
• What 3 things increase during exercise ?

  heart rate, breathing rate, breath volume to supply body with oxygenated blood
• What occurs if there is insufficient oxygen present ?

  anaerobic respiration
• Define Oxygen debt ?

  Amount of oxygen needed to break down lactic acid
• Define metabolism ?

  sum of all chemical reactions in the body
• What is the energy from cell respiration used for ?

  to make new molecules
• What type of reaction is glucose conversion into starch, glycogen, cellulose ?

  metabolic