Cell Structure (AQA GCSE Biology): Flashcards
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13 cards from this deck
Process of cells becoming specialised
Process of cells becoming specialised
Differentiation
Unspecialised cells at root/shoot tips
Unspecialised cells at root/shoot tips
Meristem cells
Root hair cells: main function
Root hair cells: main function
Absorb water and mineral ions
Root hair cells: large vacuole purpose
Root hair cells: large vacuole purpose
Increases water absorption by osmosis
Root hair cells: many mitochondria purpose
Root hair cells: many mitochondria purpose
Energy for active transport of minerals
Root hair cells: hair projections purpose
Root hair cells: hair projections purpose
Increase surface area for absorption
Xylem cells: what they transport
Xylem cells: what they transport
Water and mineral ions from roots
Xylem cells: lignin function
Xylem cells: lignin function
Provides strength and support
Xylem cells: dead or alive when functioning?
Xylem cells: dead or alive when functioning?
Dead
Xylem cells: why no end walls?
Xylem cells: why no end walls?
Allows easy flow of water and ions
Phloem cells: what they transport
Phloem cells: what they transport
Dissolved sugars
Phloem cells: sieve plates function
Phloem cells: sieve plates function
Let sugars move between cells
Phloem cells: companion cells role
Phloem cells: companion cells role
Provide energy (many mitochondria)