GCSE Combined Science (AQA)

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Uses of Glucose from Photosynthesis

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Bioenergetics Photosynthesis

Uses of Glucose from Photosynthesis

2:37 Photosynthesis Rate and Temperature
Spec 4.4.1.3
Previous Photosynthesis Next Graphs & Rates of Photosynthesis
  • Plants and algae produce glucose through photosynthesis.
  • In photosynthesis, carbon dioxide reacts with water to create glucose and oxygen.
  • Both plant and algal cells can photosynthesize.
  • Glucose produced by photosynthesis is used for various purposes.
  • Plant and algal cells use glucose for respiration, which is the opposite of photosynthesis.
  • In respiration, glucose reacts with oxygen to produce carbon dioxide and water, and it transfers energy for cell processes.
  • Glucose can also be converted into fats, oils, or insoluble starch for storage.
  • Storing glucose as starch prevents it from affecting the water balance of cells due to its insolubility.
  • High concentrations of soluble glucose in cells can cause water to move in, potentially causing cells to swell or burst.
  • Glucose is used to produce cellulose, which strengthens cell walls.
  • Glucose is converted into the polymer cellulose, forming strong cell walls in plants and algae.
  • Additionally, glucose is used to produce amino acids for protein synthesis.
  • Plants use nitrate ions from the soil along with amino acids to synthesize proteins necessary for growth and repair.

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