seed_plant_questions Flashcards
Gymnosperms unique trait about seed
naked
Gymnosperms groups
Conifers, Ginkgoes, Cycads, Gnetophytes
Phylum Cycadophyta 2 common terms
Cycads and Sago Palms
Cycadophyta is di/monoecious
dioecious
What is anthor term for Cycadophyta strobili
cones
Cycadophyta physical characteristics
cylindrical trunk with no branches, leaves grow from trunk
Why are many Cycadophyta species threatened/endangered
slow-growing so sensitive to habitat loss/poaching
How are Cycadophyta pollinated
insects instead of wind that most gymnosperms use
Phylum Coniferophyta common term
Pines
Which group of gymnosperms is the largest
Coniferophyta
What do female pine cones contain
macrospores aka eggs
female pine cones are larger or smaller than male pine cones
larger
Female pine cones are lower or higher on tree than male cones
lower
Why are female pine cones resinous
to catch pollen
How long does it take a female pine cone to mature
2 years
Phylum Gingkophyta is Di/monoecious
Dioecious
Number of surviving Gingkophyta species
1
Gingkophyta nickname
Gingko
The part of Ragweed pollens that causes allergies
Outer Wall
word for petals of a flower
corolla
Tomoatto is a _ Fruit
Berry Fruit
2 nuclei in a pollen grain of an angiosperm
tube nucleus and generative nucleus
THe only naturally growing Gnetophyte in the US
Ephedra
most ventral structure of a carpel
ovary
the second most outer layer of a Eudicot stem
cortex
Oldest living organisms on Earth
Bristlecone Pines
this structure secretes mucilage
root cap
This plant has only 2 leaves: Zamia, Gnetum, Cycas, Welwitschia, Ephedra
Welwitschia
these cells surround stomata
guard cells
Number of petals per Eudicot flower
groups of 4 or 5
Number of petals per Monocot flower
groups of 3
Double fertilization
one sperms forms zygote, other sperm forms 3n endosperm
tracheids
transport water in conjunction with vessel elements
list the layers outer to the pericycle on a carrot
epidermis, cortex, endodermis, pericycle
photosynthesizing cells on a leaf bottom
spongy mesophyll
