Lecture 29-32 Flashcards
A group of cells that consist of one or more cell types that together perform a specialized function are known as?
Tissues
Several types of tissue that together carry out a function are known as?
Organs
Where do plants sustain growth?
In apical meristems
What adds thickness to woody plants (growth)
Lateral meristems
What does vascular cambium do?
Adds layers of vascular tissues (a secondary xylem and a secondary phloem)
What does cork cambium do?
Replaces the epidermis with periderm (makes it thicker and tougher)
What are the two lateral meristems?
Vascular cambium and cork cambium
A waxy coating called the ____ helps prevent water loss from the epidermis
Cuticle
In woody plants, protective tissues called _____ replace the epidermis in older regions
Periderm
The vascular tissue of a stem or root is collectively called the ____
Stele
Ground tissue internal to the vascular tissue is?
Pith
Ground tissue external to the vascular tissue is?
Cortex
What do parenchyma cells have and not have?
Have thin and flexible primary walls, but lack a secondary wall
_________ increases the chances that germination will occur at a time and place most advantageous to the seedling
Seed dormancy
Seed germination depends on ____, which is?
Imbition, the uptake of water due to low water potential of a dry seed