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
Three main functions of a root
Anchor the plant, absorb minerals and water, store carbohydrates
Primary root growth occurs at the _____
RAM, root apical meristem
As the root pushes through soil, it is protected by what?
Root cap protects it
Define nodes, internodes, axillary buds
Where leaves attach, between leaves, form a lateral shoot/branch
Compare eudicots and monocots in terms of vascular bundles
In eudicots, arranged into a ring…. In monocots, scattered throughout
Compound leaf
Blade is divided into leaflets
The epidermis in leaves is interrupted by _____
Stomata
What is stomata?
Pores that allow CO2 and O2 exchange between the air and photosynthetic cells
Most monocots have ___ veins, while eudicots have ___ veins
Parallel, branching
Secondary growth is a solution to what problem?
When plants grow tall, they require more support for their greater capacity
