Uses of glucose from photosynthesis (4.4.1.3) — AQA GCSE Biology Revision Notes

Revision notes for AQA GCSE Biology specification point 4.4.1.3, Uses of glucose from photosynthesis.

How Plants Use GLUCOSE:

1. RESPIRATION

Glucose is used to TRANSFER ENERGY by respiration for the plant's FUNCTIONS and to create other substances.

 

2. CELLULOSE:

Glucose is transformed into CELLULOSE, which is crucial for making PLANT CELL WALLS to SUPPORT cells' structures.

 

3. AMINO ACIDS:

Glucose is combined with NITRATE IONS from the soil to make amino acids, which are then assembled into PROTEINS for GROWTH and REPAIR.

 

4. LIPIDS:

Glucose is turned into fats and oils for storage in SEEDS.

 

5. STARCH:

Glucose is stored as starch in roots, stems, and leaves for use when photosynthesis is not active, like during winter. Starch is a good storage form because it is INSOLUBLE, preventing the cell from swelling with water.

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