plant organisation
- Created by: Lauren Griffin
- Created on: 22-03-18 21:48
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- B2 Organisation
- plant tissues
- specialised cells in multi-cellular plants are organised into tissues & organs.
- epidermal tissues cover the surfaces and protect them.
- palisade mesophyll tissue contains lots of chloroplasts
- spongy mesophyll tissue contains some chloroplasts and has big air spaces & a large surface area to make diffusion of gases easier.
- xylem and phloem transport tissues in plants
- plant organs
- each organ carries out their own particular function.
- in each plant organ there are collections of different tissues working together to perform specific functions.
- in the body of a plant, specialised tissues such as palisade, spongy mesophyll, xylem & phloem are arranged to form organs.
- plant organ systems
- the whole body of a plant-roots, leaves and stem form an organ system
- plants have tow separate transport systems to move substances around the whole plant.
- the organ system transports substances around the plant.
- xylem-moving water & mineral ions
- its the other transport tissue in a plant.
- it carries water and mineral ions from the soil around the plant.
- mature xylem cells are dead.
- plant tissues
- phloem (moves food)
- it transports the sugars made during photosynthesis.
- the movement of dissolved sugars from the leaves to the rest of the plant is called translocation.
- the dissolved sugars are needed for making new plant cells.
- phloem cells are alive.
- B2 Organisation
- plant tissues
- specialised cells in multi-cellular plants are organised into tissues & organs.
- epidermal tissues cover the surfaces and protect them.
- palisade mesophyll tissue contains lots of chloroplasts
- spongy mesophyll tissue contains some chloroplasts and has big air spaces & a large surface area to make diffusion of gases easier.
- xylem and phloem transport tissues in plants
- plant organs
- each organ carries out their own particular function.
- in each plant organ there are collections of different tissues working together to perform specific functions.
- in the body of a plant, specialised tissues such as palisade, spongy mesophyll, xylem & phloem are arranged to form organs.
- plant organ systems
- the whole body of a plant-roots, leaves and stem form an organ system
- plants have tow separate transport systems to move substances around the whole plant.
- the organ system transports substances around the plant.
- xylem-moving water & mineral ions
- its the other transport tissue in a plant.
- it carries water and mineral ions from the soil around the plant.
- mature xylem cells are dead.
- plant tissues
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