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B2.2 Respiration and Photosynthesis (Y8)

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  • what is the equation for anaerobic respiration?
    glucose --> lactic acid
  • which is the correct equation for photosynthesis?
    carbon dioxide + water --> glucose + oxygen
    carbon dioxide + glucose --> water + oxygen
    glucose + oxygen --> lactic acid
    glucose + oxygen --> water + carbon dioxide
  • what is a biodome?
    a self-contained and self-sufficient ecosystem
  • in a biome, what does a plant rely on a fish for?
    carbon dioxide for photosynthesis
  • what is the dependent variable?
    something that affects an experiment
    what you CHANGE
    what you MEASURE
    keep the SAME
  • what are stomata?
    where gases are exchanged in a leaf (palisade) cell
  • what is the main difference between aerobic and anaerobic exercise?
    aerobic = uses oxygen
  • what is a lifestyle risk factor?
    something someone does that may increase their chance of disease
  • why is respiration needed?
    to RELEASE energy the body needs for movement
  • why do you breath heavily after intense exercise?
    to get oxygen into your body to break down lactic acid
  • what is a biome?
    an ecosystem with a distinct community of organisms
  • what does lactic acid do to muscles?
    muscle cramping
  • what does it mean if organisms are interdependent?
    they rely on each other for survival
  • what is a control variable?
    something that affects an experiment
    keep the SAME
    what you CHANGE
    what you MEASURE
  • what is oxygen debt?
    where more oxygen is being used than is being inhaled
  • what is the equation for aerobic respiration?
    glucose + oxygen --> carbon dioxide + water
  • does photosynthesis happen at night, and why?
    no - there is no light energy
  • what is a photoautotroph?
    plants that make their own food (glucose) using photosynthesis
  • in a biome, what does a fish rely on a plant for?
    oxygen for respiration
  • what is the independent variable?
    what you MEASURE
    what you CHANGE
    something that affects an experiment
    keep the SAME
  • why do stomata close at high temperatures?
    to reduce water loss
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