Plant tissues

• What is meristematic tissue responsible for in plants?

  It is responsible for growth in length and thickness.
• What are the two types of meristematic tissue?

  • Apical meristems: make a plant grow longer
  • Lateral meristems: make a plant grow thicker or wider
• What are the characteristics of meristematic tissue?

  Thin-walled, immature cells that divide often.
• What is the function of meristematic tissue?

  It makes new cells for growth.
• What is the structure of epidermal tissue?

  Single layer of tightly-packed, thin-walled cells.
• What is the function of the cuticle in epidermal tissue?

  It prevents too much water loss.
• How do root hairs function in plants?

  They increase surface area to absorb water.
• What are the types of ground tissues in plants?

  • Parenchyma
  • Chlorenchyma
  • Collenchyma
  • Sclerenchyma
• What is the structure of parenchyma tissue?

  Many-sided, thin-walled cells with large vacuoles.
• What is the function of parenchyma tissue?

  It stores food and water and allows gas movement.
• What distinguishes chlorenchyma tissue from parenchyma tissue?

  Chlorenchyma contains chloroplasts.
• What is the function of chlorenchyma tissue?

  It performs photosynthesis and stores starch.
• What is the structure of collenchyma tissue?

  Cell walls thickened at corners of cells.
• What is the function of collenchyma tissue?

  It provides support to parts of the plant.
• What are the two types of sclerenchyma tissue?

  Long and slender fibers, and short and irregular sclereids.
• What is the function of sclerenchyma tissue?

  It provides structure and support.
• What are the main functions of xylem tissue?

  • Transports water and mineral salts
  • Provides support, strength, and structure
• What is the structure of xylem tissue?

  Long parenchyma cells and living xylem fiber cells.
• What is the function of phloem tissue?

  It transports manufactured organic food from leaves to the rest of the plant.
• What are the types of cells found in phloem tissue?

  Sieve tubes, companion cells, and parenchyma cells.
• How do sieve tubes function in phloem tissue?

  They transport manufactured food and have no nuclei.
• What are the main functions of epidermal tissue?

  • Protects inner tissues
  • Reduces water loss
  • Allows gas exchange
• What is the structure of epidermal tissue in leaves and stems?

  Thin-walled, single layer of tightly packed cells.
• What role do guard cells play in epidermal tissue?

  They surround stomata and regulate gas exchange.
• How does xylem tissue contribute to plant strength?

  It provides strength and flexibility through lignified walls.
• What are the main functions of conducting tissues in plants?

  • Phloem: Transports manufactured food
  • Xylem: Transports water and minerals
• What is the structure of xylem vessels?

  Consists of dead cells that form long tubes.
• What is the function of companion cells in phloem tissue?

  They control the functioning of sieve tube elements.
• How does xylem tissue facilitate rapid movement of water?

  By having no cross walls and being hollow.
• What are the differences between xylem vessels and tracheids?

  • Xylem vessels: Dead cells, hollow, no cross walls
  • Tracheids: Dead cells, long and tapered, lignified walls
• What is the role of pits in xylem tissue?

  Pits allow for the movement of water between cells.
• What is the primary function of xylem tissue?

  To transport absorbed water and mineral salts.
• How does phloem tissue transport food in plants?

  Food moves in both directions in sieve tubes.
• What are the main components of plant tissues?

  • Meristematic tissue
  • Epidermal tissue
  • Ground tissue
  • Vascular tissue (xylem and phloem)