Corn, Plant Growth and Tissues Flashcards
What is an example of an annual monoecious monocot that is grown in square mile fields in the midwest?
Corn
What are the male reproductive organs of corn known as?
Tassals
What are the female reproductive organs known as?
Husk, silk, the ova and supporting husk
If not all strand of silk are fertilized, what will occur?
Imperfect ears missing kernals
What is a plant that grows, reproduces, then dies all in one year?
Annual-corn is an example
What is a plant that lives for many years called?
A Perennial
What are the 3 types of plant tissue (General) and what are they for?
Epidermal-protection
Ground-Storage and support
Vascular-Transport
What are considered the epidermal tissues?
Roots, Stems, Leaves
What kind of cells do the root epidermal tissue contain?
Acid Cells
What are the three types of Ground tissue?
Parenchyma, Collenchyma, Sclerenchyma
What does Parenchyma do?
Juice and Starch support
What does Collenchyma do?
for flexible support
What does sclerenchyma?
for firm support
What does xylem do?
Water transport
What does Phloem do?
Sugar transport
Where is primary plant growth taking place?
Lengthwise, occuring at tips of roots and stems
Where is secondary plant growth taking place?
Diameter wide growth
What is responsible for primary growth?
Apical and Root meristems
What is responsible for secondary growth?
Cambium Tissue
What are the three parts to external leaf structure?
blade, Veins, and Petiole
What is the petiole?
Attaches the blade to the stem
What does the epidermis of the leaf contain on the underside for gas exchange?
Stomas
What are palisade cells and where are they located?
Palisade cells are tightly packed cells on the top of the leaf
What are spongy cells and where are they located?
Looser packed cells on the bottom of the leaf
What is a pith?
Starch storing ground tissue in Monocots and Annual Eudicots
In Annual Eudicots, how is the vascular tissue arranged?
in a circle around outside of stem
What is the epidermis of Perennial Eudicots?
Bark or cork
What produces new bark or cortex cells?
Cork Cambium
What are the photosynthesising cells under bark?
Cortex
What produces new xylem and phloem each year?
Vascular Cambium
What absorbs about 95% of plants water and nutrients?
Root hairs
What are the 3 macro nutrients of plant body?
Carbon, Oxygen and Hydrogen
What is transpiration?
Water transport
What are the 3 steps of the cohesive-tension theory?
Osmosis-Water moves into roots
Capillary Action-water moves through xylem
Evaporation-Move water out of leaves stoma
What is translocation?
Sugar transport
If a bullet was shot through a tree root, what would be the track of the bullet?
Epidermis->Cortex->endodermis->Pericyle->Phloem->Xylem
What is the source of lateral roots in the ground tissue?
Pericycle
