plant tissues

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

  The roles of the different tissues in a plant
• Where does photosynthesis take place in a plant?

  In the leaves
• What is the leaf classified as in terms of plant organs?

  A plant organ that contains different tissues
• What are the thin cells covering the top and bottom of the leaf called?

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

  To protect the surface of the leaf
• What is a key adaptation of the upper epidermis?

  It is transparent, allowing light to pass through
• What does the waxy cuticle do for the leaf?

  Reduces the evaporation of water from the surface
• What are the tiny pores on the lower epidermis called?

  Stomata
• What is the function of stomata in a leaf?

  To allow carbon dioxide to enter and oxygen to leave
• What do guard cells do in relation to stomata?

  They help control the amount of water vapor that can pass out of the leaf
• What is found at the top of the leaf?

  The palisade mesophyll
• What are palisade cells packed with?

  Chloroplasts
• What is the role of chloroplasts in palisade cells?

  To absorb light energy needed for photosynthesis
• What is a key feature of the spongy mesophyll?

  It is full of air spaces
• How do air spaces in the spongy mesophyll assist in gas exchange?

  They allow carbon dioxide to diffuse to the palisade cells and oxygen to diffuse to the stomata
• What are the two other tissues in the leaf besides mesophyll?

  Xylem and phloem
• What does xylem tissue transport?

  Water from the roots to the stem and leaves
• What mineral ion is mentioned as being transported by xylem and is used to make chlorophyll?

  Magnesium
• What does phloem tissue transport?

  Dissolved sugars produced by photosynthesis from the leaves to the rest of the plant
• What is the process called when sugars move through phloem tissue?

  Translocation
• What is the final type of plant tissue mentioned in the video?

  Meristem tissue
• Where is meristem tissue found?

  At growing tips, such as shoots and roots
• What do stem cells in meristem tissue do?

  They can differentiate into different types of plant tissue
• What resource can you use to find plenty of questions on plant tissues?

  The my ization workbook
• What should you be able to do after watching the video?

  Describe the roles of the different tissues in a plant