Chapter 22.4, 22.5, And 23-Botany Flashcards
Two groups of seed plants
Gymnosperm
Angiosperm
Gymnosperm
Plants that bear cones that have seeds on the outside
The most common gymnosperms
Conifer
Angiosperm
Flowering plants (the flowers and the fruit protect the seed)
What do all seed plants have In Common
They both have seed coats to protect and keep the moisture inside
The both also have embryos in order for germination and a food supply in the seed or soil
Germination
The process in which the seed begins to grow
Two major subgroups of angiosperms
Monocots and dicots
What are three characteristics of monocots
Parallel venation
Fibrous roots
Flowers come in multiples of 3
3 characteristics of dicots
Branched venation
Big roots
Flowers in multiples of 4 and 5
When a seed germinates and the stem and root come out of it what is the root called and what is the stem called
Stem- plumule
Root-radical
Tropism
When a plant responds to its environment
What are some tropisms
Hydrotropism Chemotropism Phototropism Thigmotrotropism Geotropism
Woody plants
Plants with wood and a protein called lignin
Herbaceous plants
Plants with a soft stem
Annual, biennial, and perennial plants
Annual- 1 growing season don’t come up again
Biennial- 2 growing season,dormant in winter
Perennial- come back every year
Three principle organs of seed plants
Roots
Stems
Leaves
Stoma
Pores on the bottom of a leaf that open and close to control water, oxygen, and carbon dioxide
Three main tissue types
Dermal
Vascular
Ground
Cuticle
Waxy coating on the dermal tissue to help waterproof it
Trichombs
Root hairs that give the leaves the fuzzy feel that increases the surface area on roots. the root uses to absorb moisture all plants have them
Components of vascular tissue and what they do
Made up of xylem and phloem. The xylem brings moisture and sugar up the stem. The phloem brings carbs down
Tracheids are the pathways
What are the types of cells in ground tissue
Parenchyma
Collenchyma
Sclerenchyma
Parenchyma
Make and store food