Diversity of Plants (Week 8 Lecture 11) Flashcards
True or False: The plant kingdom is primarily terrestrial eukaryotes.
true
True or False: Plants store carbohydrates as starch.
True
Chloroplasts contain ______, ______, and ______.
Chlorophyll A, Chlorophyll B,
carotenoids
What are the cell walls of plants composed of?
Cellulose
How many different plants exist today?
265 000
When did plants make the transition to land?
425 MYA
What are the pores that carry out the gas exchange on plants?
Stomata
True or False: The leaves are covered with a waxy cuticle to prevent desiccation.
True
What is the alternation of generation that occurs in the life cycle of plants?
haploid gametophyte stage, diploid sporophyte stage
What type of plants have a large obvious gametophyte stage?
Bryophytes
What are the 4 major plant evolution adaptation?
1) about 400 million years ago (Ordovician age) - the feature of a protected embryo; also spore production as a means of reproduction
2) the evolution of vascular tissue
3) the origin of seed producing plants about 360 million years ago, and
4) the evolution of flowering plants about 130 million years ago.
An example of a non-vacular plant would be?
Mosses
True or False: In non-vascular plants, multicellular embryos are protected within structures that produce an egg
True
What is an example of a seedless vascular plant?
Ferns
Vascular tissue conducts water and organic nutrients within its roots stems and leaves in what type of plants?
Seedless vascular
Conifers are an example of what tye of plant?
Gymnosperms
In ______, seeds produced in seed cones disperse offspring away from the parent plant.
Gymnosperms
In ______, flowers produce seeds protected by fruits.
Angiosperms
Liverworts and hornworts are examples of ______.
Bryophytes
What are the 4 major classes of plants?
Bryophytes, Pteridophyta, Gymnosperms and Angiosperms
Grasses and hardwoods are examples of ______.
Angiosperms
How do bryophytes and pteridophyta fertilize?
Water
What do nonvascular plants have instead pf roots?
Rhizoids