plant organisation

• What are the main components of plant organization?

  Plant tissues, organs, and organ systems
• What is the function of transport systems in plants?

  To move substances throughout the plant
• What are the two main types of plant tissue involved in transport?

  Xylem and phloem
• How do substances move from the roots to the leaves in plants?

  Via the xylem and phloem
• What factors affect the rate of transpiration in plants?

  Temperature, humidity, wind speed, and light intensity
• What adaptations do root hair cells have for absorption?

  Thin walls, large surface area, and lots of mitochondria
• What is the role of phloem in plants?

  To transport sugars via translocation
• What is the role of xylem in plants?

  To transport water via transpiration
• What type of cells make up xylem?

  Dead, hollow cells strengthened with lignin
• How does water exit the plant during transpiration?

  Water evaporates and exits via the stomata
• What is the function of stomata and guard cells in plants?

  To control the rate of gas exchange and transpiration
• Where is the palisade layer located in a leaf?

  At the top of the leaf
• What is the role of chloroplasts in the palisade layer?

  To facilitate photosynthesis
• What does the lower epidermis of a leaf contain?

  Stomata
• What is the function of spongy mesophyll in a leaf?

  To facilitate the diffusion of gases
• Where does cell division occur in plants?

  At the root and shoot tips
• What type of tissue contains stem cells in plants?

  Meristem tissue
• How do stomata contribute to transpiration?

  They enable water loss from leaves
• How is the rate of evaporation controlled in plants?

  By stomata and guard cells