Bio 162 Test 1

58 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
Function of epidermis
Outer layer of cells that surrounds the stem. Has a waxy waterproof cuticle
Function of cortex and pith
Ground tissue that surrounds vascular bundles
Function of Xylem
Transports water and ions through the plant
Function of Phloem
Sugar transport
Function of guard cells and where are they located
Change shape to open or close the pore in stomata to control gas and water transport
What are the 3 zone in root systems and what happens in each section
zone of cell division: contains the apical meristem, where cells divide. zone of cellular elogation: made up of cells derived from apical meristem, actively increase length.zone of celluar maturation: older cells complete differentiation into dermal, vascular, and ground tissues. epidermal cells produce root hairs to increase surface are.
What two things make up: ground tissue, vascular tissue, and dermal tissue
Cortex and pith. xylem and phloem. cuticle and root hairs
What are a few differences between dicot leaves and monocot leaves
Dicot has 2 cotyledons, branching viens. monocot has one cotyledon and parallel veins
What makes a monocot root different from a dicot
The xylem and phloem surround the pith in alternating bundles (circle) and it doesnt have a cuticle
What is the function of the pericycle
Strengthens the stem and provides protection for vascular bundles
What is the function of the endodermis
To prevent water and solutes from passing through
What makes a monocot stem different from a dicot
The vascular bundles are randomly spread out and it has no secondary growth
Why do lawns need to be watered frequently in dry regions?
They have shallow root systems
What is the function of the pericycle in woody roots
They produce the root cork cambium
How does secondary xylem and phloem come about
A thin layer of procambuim cells between xylem and phloem differentiate into vascular cambium