‣
‣
‣
‣
- Apical bud
‣
‣
- Plant tissue capable of producing new cells by mitosis
‣
- Allows the plant to grow
- Mitosis causes the growth of shoot tips and root tips
‣
- Root tips
- Shoot tips
- Axillary/lateral buds
‣
- Along the stem
- Above where the leaf attaches
‣
- Dormant state
‣
- Apical dominance
‣
- When the terminal/apical bud releases growth regulators that prevent the meristem on the axillary bud from dividing by mitosis
- Resulting in no sideward branching
‣
- Apical dominance is removed
- The plant will grow into a low bushy plant
‣
‣
- The point at which the leaf is attached to the stem
‣
‣
- The space between two nodes
‣
‣
- The stalk of the leaf
‣
- Sessile
‣
‣
- The angle created between the leaf and the stem
‣
‣
‣
‣
- Contains wood
‣
- Scale scar
- Girdle scar
‣
- The previous position of apical bud
‣
- One years growth
‣
- Lenticels
‣
- CO2
- Water vapour
‣
- Oxygen
‣
‣
- Doesn't contain wood
‣
- Support the aerial parts of the plant
- Food storage
- Transport water and dissolved minerals
- Photosynthesis
‣
‣
- Thin which allows for rapid diffusion of gases
- Broad and flat means its well adapted to absorbing light
‣
- Parallel venation
- Netted/Reticulate venation
‣
- Photosynthesis
- Food storage
- Gas exchange
- Transpiration
‣
‣
‣
‣
- Protection
‣
‣
- Support
- Storage
- Photosynthesis
‣
‣
- Transport
‣
‣
‣
- Transport water and dissolved minerals
‣
‣
‣
- Have tapered end walls
- Narrow
- Smaller than vessel
‣
‣
‣
- Wider than tracheids
- No tapered end walls
- Long hollow continuous tube
‣
‣
- Very thick cell wall
- Have pits to allow water to move sideways
- Contains lignin
‣
- Prevents the inward collapse of the xylem
‣
- Xylem vessels are dead when mature so lignin is needed to hold it together
‣
‣
- Transports food through the plant
‣
- Sieve tube elements stacked on each other to form sieve tubes
- Attached to each sieve tube element is a companion cell
- At the end of every sieve tube element is a hole called a sieve plate
- This allows for food to pass through from element to element
‣
‣
‣
‣
- Contains one seed leaf
‣
- Food storage
‣
- Parallel venation
- Flower parts are in 3`s or multiples of 3`s
- Scattered vascular bundles
‣
‣
‣
- Contains two seed leaves
‣
- Netted/reticulate venation
- Flower parts are in multiples of 4`s or 5`s
- Ringed vascular bundle (fixed arrangement)
‣
‣
‣
‣
‣
‣
- Roots form from the stem
- Contains many small roots of similar size
‣
‣
- Monocots
‣
- Grass
‣
‣
- The root forms from the radicle in the seed
- Has a main large root with smaller roots attached
‣
‣
- Dicots
‣
- Dandelion
- Carrots
‣
‣
‣
‣
‣
- To protect the root as it grows further
‣
- Root cap
‣
- Protects the root as it grows/burrows into the soil
‣
‣
- Produce new plant cells
‣
- Apical meristem
‣
‣
- Newly produced cells get longer
‣
‣
- Newly elongated cells will turn into either :
- Dermal Tissue
- Ground Tissue
- Vascular Tissue
‣
- Anchorage of the plant
- Food storage
- Absorb water and minerals
- Transport