Week 3 INFO Flashcards
What are the three types of plant tissue?
Dermal, ground, and vascular
What are the three vegetative organs?
Leaf, stem, and root
What do meristems do?
The only parts of the plant that can grow (cell division)
What direction do apical meristems grow?
From the tips of the plant
EX: leaves or stems.
What direction do lateral meristems grow?
Outward to produce wood
The dermal tissue is the ______ of the plant
Epidermis
What do trichome cells help with?
They help conserve water
What do guard cells do?
They help control stomata openings for gas exchange
What is cutin?
A waxy substance secreted for water conservation
What do trees and other woody plants have for epidermal cells?
Periderm
What are the three ground tissue cells and their cell wall thickness?
Parenchyma: Thin, flexible
Collenchyma: Long, skinny, and uneven
Sclerenchyma: Thick, dead at maturity
What direction does Xylem flow in? What does it transport?
It flows water & nutrients from roots to leaves
What direction does Phloem flow in? What does it transport?
It flows sugar/glucose from source to sink
What is the study of tree rings?
Dendrochronology
