Chapter 28 + 29: Vascular Plant/Growth, Resource Acquisition/Nutrition/Transport in Vascular Plants Flashcards
What are the basic plant organs?
Roots, Stems, and leaves
What is the function of roots? (2)
anchorage, absorb minerals + water, and store carbohydrates
What is the function of stems? (2)
produce leaves and branches + bear reproductive structures
What is the function of leaves?
Primary photosynthetic organs
What are the parts of a stem? (3)
The node, axillary bud, and apical bud
Function of a node
where leaves are attached to stem
Function of apical bud
growing shoot tip
Function of axillarybud
at each node and can form lateral branch, thorns, and flowers
What are the three tissue types?
vascular, dermal, and ground
Function of vascular tissue (2)
transport materials and provide structural support
Function of dermal tissue
protective covering
Function of ground tissue (3)
metabolic functions, short distance transport and storage
What is vascular tissue composed of?
Xylem and phloem
What is the function of xylem?
conducts water and minerals upwards from roots into shoots
What is the function phloem?
transports sugars from where they are made to where they are needed or stored
What is the cuticle?
the waxy covering on leaves and stems, protects from dessication
What is the stoma?
a pore that allows gas exchange between the interior of the planet and the environment
During transpiration, water moves from areas of _____ water potential to areas of _____ water potential.
higher, lower
What kind of pressure drives transpiration?
negative pressure
What are the steps of transpiration? (3)
- Water uptake from soil
- Cohesion/adhesion in the xylem
- Transpiration
