Plant Form, Function, and Evolution Flashcards
What ancestral aquatic plant do mor emodern plants originate from?
Green Algae
Define:
Nonvascular
There are no vessels to help bring water upward; mosses are a great example.
What element is necessary for sexual reproduction and why?
Water - So that the motile sperm can reach the egg to intiate thr reproduction of the plant.
Where do mosses live and why?
They live in moist areas so taht they can get the water the need to survive and reproduce.
Define:
Vascular System
A system of tubes and vessels that allow for transport.
Define:
Xylem
Vascular tissue in plants that allows for water transport.
Define:
Phloem
Vascular tissue in plants that allow for the transport fo sugar and other nutrients within the plant.
Define:
Lignin
Strengthening material in the cell walls of phloem and xylem which is produced by the cells of xylem.
Define:
Gymnosperms
These are trees taht have cones which produce seeds. Ex. pine tree
Type of seed plants that bloom flowers
Angiosperms
What part of a seed plant contains the embryo
The seed
These seed plants have cones
Gymnosperms
In Angiosperms what is the seed surrounded by?
Is is encased in a fruit which acts as a defnse mechanism and is also made of the leftover parts of the ovary.
What level of “n” are Gametes?
They are just n/haploid.
What level of “n” is a zygote?
2n/Diploid
What are the two groups of seeds?
Monocots and Dicots (Eudicots)
