photosynthesis

• plant cell

  
• photosynthesis equation = carbon dioxide + water -> glucose + oxygen
• photosythnesis takes place in chloroplasts
• adaptations of leaf cells : green, lots of chlorophyll to absorb sunlight. thin = short diffusion distance for carbon dioxide to move into the leaf, large surface area for light absorption, has veins
• plants have a waxy cuticle to prevent water loss
• 1.upper epidermis, 2. palisade, c. spongy mesophyll, 4. lower epidermis
• epidermis- acts as a barrier to infection and prevents water loss , adaptations : transparent , thin
• palisade : where most of photosynthesis occurs , adaptation: lots of chloroplasts, long and thin so light can pass through as many chloroplasts as possible
• spongy mesophyll: for gas exchange and some photosynthesis, adaptation: large air spaces for gases to easily diffuse through
• xylem tissue transports water and minerals from the root to the rest of the plant, adaptation : thin hollow walls and spirals of lignin for strength and support