What molecule is a store of chemical energy in our cells? - Adenosine triphosphate (ATP)., How is the chemical energy released from ATP? - Removal of a phosphate group from ATP breaks a high-energy bond releasing energy. ATP becomes ADP (adenosine diphosphate), Give at least 2 uses of ATP in our body? - Muscle cell contraction, cell division, active transport, protein synthesis, nerve cell transmission., Can you draw the summarised word equation for aerobic respiration?, Name the 2 reactants in aerobic respiration? - Glucose and oxygen, Name the 2 by-products of aerobic respiration? - Carbon dioxide and water, Describe stage 1 of aerobic respiration in detail. Mark incorrect if you forgot anything (you can draw it). - Glucose is broken down to 2 molecules of pyruvate in the cytoplasm generating 2 molecules of ATP., Describe the events of stage 2 of aerobic respiration (mark incorrect if you forgot anything). - Each pyruvate produced in stage 1 is fully broken down into carbon dioxide and water in the mitochondria generating 36 ATP., Total number of ATP produced from one glucose molecule fully breaking down in respiration? - 38 ATP, Which stage of aerobic respiration is oxygen-dependent? - Stage 2, What is meant by 'fermentation'? - Respiration in the absence of oxygen., Describe the fermentation pathway in animal cells. - Glucose breaks down to pyruvate in the cytoplasm generating 2 ATP. The pyruvate cannot enter stage 2 so is converted into lactate. Lactate is converted back into pyruvate when oxygen is available again., Describe the fermentation pathway in plant and yeast cells. - Glucose breaks down into pyruvate in the cytoplasm generating 2 ATP. Pyruvate cannot enter stage 2 so is broken down into carbon dioxide and ethanol., Why will respiration not occur at high temperatures? - Enzymes required for respiration will denature at high temperatures., What device can be used to measure respiration? - A respirometer.,

Respiration

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