BOTANY - Session 3

  1. Basic Plant Anatomy and Morphology
  2. Anatomy ______
  3. Morphology ______
  4. ______
  5. Non woody growth - ______
  6. Results from the ______
  7. Meristem - small group of actively dividing and undifferentiated cells
  8. Plant Organs
  9. Leaves
  10. Main Functions
  11. ______
  12. ______
  13. ______
  14. ______
  1. Morphology
  1. Anatomy

1.______- waxy substance that covers the epidermis, prevents evaporation

  1. ______- undifferentiated cells, can have chloroplasts, can function in storage
  1. ______- Opening for gas exchange
  1. ______- controls the opening of stoma
  1. ______- has xylem and phloem
  2. Xylem - transports water and minerals
  3. Phloem - transports nutrients
  1. Stems (shoots)
  2. Stem Main Functions
  1. ______
  1. ______
  1. ______
  1. ______
  1. Morphology
  1. ______is a region of actively dividing cells
  2. ______- yields new stems or flowers

  1. Anatomy

  1. ______transports water and minerals
  1. ______transports photosynthate, amino acids and other nutrients
  1. Roots
  2. Root Functions:
  1. ______
  2. ______
  3. ______
  4. ______
  1. Morphology
  1. Root hairs - found on tips of young roots - site of mineral and water absorption
  2. Root Apical meristem - actively dividing cells that function in elongating root
  3. Root Cap - protects tip of roots (especially meristem)
  1. Anatomy

  1. Endodermis - Single cell thick layer on innermost region of cortex
  2. Helps regulate the flow of water and dissolves substances
  1. ______
  1. ______
  2. As opposed to primary growth which is an increase in length
  1. ______gives rise to primary growth
  1. ______gives rise to secondary growth
  1. Also called ______
  2. Situated in a single cell thick ring

  1. Gives rise to secondary xylem and secondary phloem
  2. When a cell in the vascular cambium divides we get two daughter cells
  3. One cell will remain a meristomatic cell and one will differentiate
  4. The cell that differentiates can become phloem or xylem
  1. ______has a tough secondary wall so it maintains a linear pattern
  1. ______cells become crushed in secondary expansion
  2. Youngest cells are nearest to the vascular cambium
  3. Rays (parenchyma cells) mixed with phloem and xylem provide support
  1. ______
  2. Differential size in xylem due to ______
  1. In the spring there is ______water so the xylem cells are ______
  2. In the summer, fall and winter xylem cell size decreases and then increases when spring returns
  3. The transition between small and large xylem cells produces the appearance of a ring
  4. Largely a temporal phenomenon
  5. ______
  6. In trees:
  7. Xylem = ______
  8. All outside tissue = ______

1