Plant tissues

• 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 through spongy mesophyll
• What does xylem tissue transport?

  Water and dissolved mineral ions
• What mineral is mentioned as being transported by xylem?

  Magnesium
• What does phloem tissue transport?

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

  Translocation
• What is meristem tissue responsible for?

  Growth and differentiation of plant tissues
• 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