translocation

• What does root hair cell do?

  Absorb water and minerals ions from the soil by active transport
• 3 things which roots hair cells have?

  Large surface area and thin cell wall and mitochondria for energy
• What happens in paliside cell?

  Where photosynthesis happens in leaves
• 2 things how palaside is adapted?


  Large surface area and lots of chloroplast
• What groups are xylene and pholem found?


  Vascular bundles
• What does xylem do?


  Transports water and mineral ions in the transpiration stream
• Xylem adaptation:

  1. Hollow tube made of dead cells so easy water flow
  2. Think walls made of lignin for strength and support
• What plant cell is this

  Xylem

  
• What does pholem do?


  Transports sugars
• 2 adaptations for pholem cells?


  Elongated living cells and small pores to let substances through
• What is translocation?


  Pholem transports sucrose and amino acids up and down the plant
• Companion cells in pholem are next to sieve cell and provide energy to sieve cell
• What are sieve tubes in pholem?


  specialised for transport and have no nuclei
• What does pholem require 


  Energy

  
• Minerals enter plant using?


  Active transport
• Water enters root hair cell 


  Using osmosis
• Sucrose is transported so we say it's translocation around plant and used to make starch and glucose
• Root hair cells adaption

  • Large surface area more water moving in
  • Mitochondria to provide energy for respiration for active transport
• What is pholem specialised for?

  To carry products of photosynthesis to all parts of plants
• Energy is supplied by mitochondria of companion cells to pholem what do they use it for?

  Transport sucrose around plant
• What is sucrose

  Sugar plants use
• Where does translocation only occur?

  Pholem