plant tissues

• What should you be able to describe by the end of the video?

  The roles of different tissues in a plant
• Why is it important to learn the details in this video?

  It is likely to be on your exam
• Where does photosynthesis take place in plants?

  In leaves
• What is the leaf classified as in plant anatomy?

  A plant organ
• What type of cells cover the top and bottom of the leaf?

  Epidermal cells
• What is the function of the epidermis in a leaf?

  It protects the surface of the leaf
• What is a key adaptation of the upper epidermis?

  It is transparent to allow light passage
• What does the waxy cuticle do?

  Reduces water evaporation from the leaf
• What are stomata?

  Tiny pores on the lower epidermis
• What is the function of stomata?

  Allow gas exchange in the leaf
• What are guard cells?

  Cells that surround stomata
• What is the role of palisade mesophyll?

  Contains chloroplasts for photosynthesis
• What do chloroplasts contain?

  Chlorophyll
• What is a key feature of spongy mesophyll?

  It is full of air spaces
• How does carbon dioxide move in the leaf?

  From stomata to palisade cells
• What is the function of xylem tissue?

  Transports water from roots to leaves
• What mineral is transported by xylem for chlorophyll production?

  Magnesium
• What does phloem tissue transport?

  Dissolved sugars from leaves
• What is the process of moving sugars through phloem called?

  Translocation
• Where is meristem tissue found?

  At growing tips of shoots and roots
• What do stem cells in meristem tissue do?

  Differentiate into various plant tissues
• What are the main tissues found in a leaf and their roles?

  • Epidermal tissue: Protects leaf surface
  • Palisade mesophyll: Contains chloroplasts for photosynthesis
  • Spongy mesophyll: Allows gas diffusion
  • Xylem: Transports water and minerals
  • Phloem: Transports sugars
  • Meristem: Contains stem cells for growth
• What should you expect in the upcoming video?

  Roles of stomata and guard cells