Specialisation in Plant Cells Flashcards
What are Root Hair cells and describe them?
They are close to the growing roots. They help take in mineral ions in effiently,
What is a Xylem?
A tissue that carries water and mineral ions up to the plant.
How are Mineral ions moved into the root hair cells
By active transport.
What are the adaptations of the Root Hair Cell?
They have a large surface area, large Permanent vacuole, many mitochondria and it has a long hair-like extension.
What does the Large surface area do to the Root Hair Cell?
It makes it available for more water to move into the cell by osmosis.
Why does the Root Hair Cell have a Large Permanent Vacuole?
Speeds up the movement of Osmosis from soil to root hair cells.
Why does the Root Hair Cell have many Mitochondria?
To transfer a lot of energy needed for active transport for root hair cells
Why is there a Long Hair Like Extension?
To increase the surface area
Is there any chloroplasts in Root Hair Cells?
No, because the cells are underground so they don’t need chloroplasts
What are Photosynthetic cells?
They are cells that make their own food by photosynthesis.
What are Chloroplasts?
Containing Chlorophyll that is a green pigment that traps light for photosynthesis.
What is important about Chloroplasts an there structure?
They are layered continuously to absorb as much sunlight as possible.
Why do photosynthetic cells have a Large Permanent Vacuole?
Filled with cell sap to keep the cell rigid as a result of osmosis, helps support the stem and captures light
What are Xylem Cells?
They are Cells that transport water and mineral ions from the roots to the leaves.
How are Xylems formed?
They are formed from the dead cells from cell walls that have broken down between them to form hollow tubes.
