Structure of a Leaf

• What are the different levels of organization in plants?

  Cells, tissues, organs, organ systems
• What is the function of a leaf in a plant?

  Transport of substances around the plant
• What is the primary function of leaves?

  Site of photosynthesis
• What do leaves require for photosynthesis?

  Carbon dioxide and water
• How does water reach the leaves of a plant?

  Transported by roots and xylem
• What are stomata?

  Small holes for gas exchange
• Where are stomata primarily located on a leaf?

  Lower epidermis
• What is the spongy mesophyll tissue's role in a leaf?

  Facilitates gas diffusion
• Where does most photosynthesis occur in a leaf?

  Palisade mesophyll layer
• What do palisade cells contain that aids photosynthesis?

  Chloroplasts
• What is the function of phloem in a plant?

  Transport sugars to the plant
• How does the xylem contribute to leaf function?

  Brings water for photosynthesis
• What is the purpose of the waxy cuticle on leaves?

  Reduces water loss
• How do guard cells regulate stomata?

  Change shape based on water availability
• What happens to guard cells when a plant is short of water?

  They become flaccid, closing stomata
• Why do most stomata exist on the underside of leaves?

  To reduce water evaporation
• What is meristem tissue in plants?

  Plant stem cells for growth
• Where is meristem tissue found in plants?

  At growing tips of roots and shoots
• What can meristem tissue differentiate into?

  Various cell types for growth
• What is the relationship between meristems and stem cells?

  Meristems are plant stem cells
• What is the focus of the linked video on active transport?

  Structure and function of root hair cells
• What should viewers do if they enjoyed the video?

  Give a like