Roots, Stems, and Leaves (Leaving Cert Biology): Flashcards
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Practise the cards
15 cards from this deck
Xylem function
Xylem function
Transports water & minerals up from roots to leaves
Phloem function
Phloem function
Carries food from leaves to other plant parts
Root cap function
Root cap function
Protects delicate growing cells as root pushes through soil
Meristem tissue role in roots
Meristem tissue role in roots
Rapid cell division produces new cells for root growth
Root hair function
Root hair function
Increase surface area for water & mineral absorption
Four main functions of roots
Four main functions of roots
Anchoring, absorption, transport, storage
What are nodes on stems?
What are nodes on stems?
Points where leaves attach to the stem
Apical bud function
Apical bud function
Contains meristem; produces new stem growth
Palisade mesophyll structure
Palisade mesophyll structure
Tightly packed cells with numerous chloroplasts
Spongy mesophyll function
Spongy mesophyll function
Allows gases to circulate freely with air spaces
Stomata function
Stomata function
Control gas exchange and water loss in leaves
Guard cells role
Guard cells role
Open & close stomata in response to conditions
Active transport in roots
Active transport in roots
Minerals absorbed using ATP against concentration gradient
Osmosis in plant water uptake
Osmosis in plant water uptake
Water moves from lower to higher solute concentration
Waxy cuticle function on leaves
Waxy cuticle function on leaves
Prevents water loss while allowing light through