Seed Plants Flashcards
Gymnosperms have _______ seeds.
showing
Angiosperms have _______ seeds.
hidden
What are examples of conifers?
Pine, spruce, fir, juniper, cypruss, and redwood
Monoecious means?
Male and female cones on the same tree
What forms on male cones?
Microspores (pollen)
What forms on female cones?
Megaspores (eggs)
How long does it take a seed to develop on a cone?
3 years
What type of tree is referred to as the “madien hair tree”?
Ginkgoes
What does deciduous mean?
Looses Leaves
What does diocious mean?
Male and female trees
What is the oldest tree in fossil record?
Ginkgoes
What female trees produce foul smelling fruit that has edible seeds?
Ginkgoes
What is also called ‘sago palms’?
Cycads
What is used for producing the drug ephedrine?
Gnetophytes
Gnetum and ephedra are two species
What is the most successful plant group due to speed of reproduction?
Angiosperms
What are the male reproductive areas on the flower?
Stamen, filament and anther
What are the female reproductive areas on the flower?
Stigma, Style and Ovary
What does the Stigma secrete?
Nectar
What do nectar enzymes do?
Activates pollen so only pollen of the same species can begin the reproductive process
What are eudicots?
Make up fruits, vegtables, and trees
What are monocots?
grains and grasses
How many Petals do monocots have compared to dicots?
Monocots have 3 to 6
Eudicosts have 4 to 5
What is the difference in veins from monocots to dicots?
Eudicots have branching veins and Monocots have parallel
In the stem Eudicots compare to dicots how?
Eudicots have vascular bundles arranged in a circle around the stem, monocots have them at random
In the roots, how are the vascular bundles arranged?
Eudicots have them at the center, and monocots have them arranged in a circle
How many sperm does it take to create a seed?
2 sperm
After double fertilization, the ovary turns into?
a fruit
