plants

•    Epidermis: The outer layer, thin and transparent, allows light to penetrate. Contains stomata for gas exchange.

  Mesophyll: Middle layer where photosynthesis happens.

  Palisade Mesophyll: Tightly packed cells with lots of chloroplasts for maximum light absorption.

  Spongy Mesophyll: Cells with air spaces for gas exchange.

  Chloroplasts: Organelles in cells where photosynthesis occurs.

  Stomata: Tiny pores on the underside of leaves that open to let in carbon dioxide and release oxygen.

  Veins: Vascular structures that provide support and transport water, nutrients, and sugars.
• Identify the different tissues in a leaf:      epidermis,

  palisade 

  mesophyll 

  spongy mesophyll
• uses of different tissues

  1.     Mesophyllaids in gas exchange and photosynthesis via chloroplasts

  • Xylemtransports water and minerals to the leaves

  Phloem-t ransports the photosynthetic products to the other parts of the plant.
• Explain how leaf structure is adapted for photosynthesis and gas exchange.

    Epidermis: The outer layer, thin and transparent, allows light to penetrate. Contains stomata for gas exchange.

  Mesophyll: Middle layer where photosynthesis happens.

  Palisade Mesophyll: Tightly packed cells with lots of chloroplasts for maximum light absorption.
• Spongy Mesophyll: Cells with air spaces for gas exchange.

  Chloroplasts: Organelles in cells where photosynthesis occurs.

  Stomata: Tiny pores on the underside of leaves that open to let in carbon dioxide and release oxygen.

  Veins: Vascular structures that provide support and transport water, nutrients, and sugars.