1.5 Specialisation In Plant Cells Flashcards
What may plant cells be specialised to carry out?
A particular function
What are some examples of specialised plant cells?
Root hair cells, photosynthetic cells, xylem cells, and phloem cells
What specialised functions may plant still have?
Plant cells maybe specialised to function with tissues, organs, organ systems, or whole organisms
What’s a root hair cell?
Root hair cells are found close to the tips of growing roots. Planting to take in lots of water (and dissolved mineral ions). The root cells help them take up the water and mineral ions more efficiently root hair cells are always relatively close to the tissue.
What does a xylem tissue do?
Xylem tissue carries water and mineral ions up to the rest of the plant. Mineral ions are moved into the root hair cell by active transport.
What are photosynthetic cells?
Plants make their own food by photosynthesis. There are lots of plant cells that can carry out photosynthesis – and lots that cannot. Photosynthetic cells usually have a number of adaptations
What adaptations do photosynthetic cells have?
- They contain specialised green structures called chloroplast containing chlorophyll that trapped the light need to photosynthesis.
- They are usually positioned in continuous layers and leaves and outer layers of them of a plant so they absorb as much light as possible
-They have a large permanent vacuole that helps keep the cell rigid as a result of osmosis
What are xylem cells?
Xylem is the transport tissue in plants that carries water and minerals ions from the roots to the highest leaves and shoots. The asylum is also important in supporting the plant. The xylem is made up of themselves that are adapted to their functions in two main ways
What are the two main ways that xylem cells have adapted?
- The xylem cells are alive when they’re first formed but a special chemical called leading builds up in spirals in the cells. The cells die which forms a long hollow tube that allows water and mineral ions to move easily through them.
- The spirals and rings of lightning in the exile cell makes them very strong and help him withstand the pressure of water moving up the plant. Also help support the plants stem.
What is a phloem cell?
Phloem is the specialised transport tissue that carries the food made by photosynthesis around the body of the plant. Made up of flow cells that forms tubes like thy cells, but flow cells do not become magnified and die. The dissolved food can move up and down the flow tubes to where it’s needed.
What adaptations do the phloem cells have?
- The cells between the cells breakdown to form special sieve plates. These are allow water carrying all food to be freely up and down the tubes to where is needed.
- Flu cells lose a lot of their natural structures but they supported by companion cells that help keep them alive. Mitochondria the companion cells transfer energy needed to move his old food up or down the plant in.phloem
What does flowing mean?
The living transport tissue implants that carries all food (sugar)around the plant
