Lesson Plan of Internal Structure of Leaf General Science Grade VI
Lesson Plan of Internal Structure of Leaf General Science Grade VI Students’ Learning Outcomes · Describe the internal structural of leaf. Information for Teachers · In plants, leaves are the major site of photosynthesis. · They are often referred as food factories of nature. · A leaf is made up of many layers those are sandwiched between two layers i.e. the upper epidermis and lower epidermis. · The upper epidermis is covered by waxy cuticle which reduces evaporation from the upper surface and lower epidermis has stomata pores for exchange of gases. · Palisade mesophyll cells are tightly packed elongated cells where most food production takes place. · Spongy mesophyll cells are loosely packed with large intercellular spaces, where the exchange of gases takes place more efficiently. · Conducting tissues consist of xylem and phloem. · Xylem transport water and minerals