Plant Cells

• thylakoids


  Flattened sacs in the chloroplast which increase the surface area for light dependent reaction for photosynthesis
• Stroma


  contains enzymes for photosynthesis

  contains DNA and ribosomes for protein synthesis

  contains starch grains for energy storage
• Grana


  stacks of thylakoids found in the chloroplast
• Function of plant cell wall

  provides rigidity to the cell by preventing it from bursting by exerting inward pressure to prevent osmosis

  This enables turgidity which makes parts of the plant semi-rigid