Transport System In Plants Flashcards
(24 cards)
What do the roots do?
Absorb water and minerals from soil
Provide support
What does the stem do?
Provides support for leaves
Allows for transport through plant
What do the leaves do?
Produce glucose through photosynthesis
Where does water enter the plant?
Roots
Where does water leave the plant?
Leaves
Why do root hair cells have a large surface area?
Absorb water
What process does water move into the roots by?
Osmosis
Besides water, what else is absorbed through the roots?
Soluble nutrients
What transports water and nutrients up the stem?
Xylem
What is the xylem made of?
Dead cells (joined end to end)
What provides support to the xylem?
Rings of lignin
What happens to the water at the leaf?
Used for photosynthesis
Lost through the stomata
How is water lost at the stomata? (On the leaves)
Evaporation
What is the loss of water through evaporation at the stomata known as?
Transpiration
What is the movement of water from the roots to the leaves known as?
Transpiration stream
What do you measure the rate of transpiration with?
Potometer
What increases the rate of transpiration?
Increased wind speeds
Decreased humidity
Increased temperature
What opens and closes the stomata?
Guard cells
What gases/liquids are exchanged through the stomata?
Water
Carbon dioxide
Oxygen
What is produced in the leaves through photosynthesis?
Glucose
What plant structure is glucose transported through?
Phloem
What is the phloem made of?
Living cells called sieve tubes
How are sieve tubes joined together?
Sieve plate
What controls the sieve tube?
Companion cell
