Plant Classification
What group of plants produces flowers and fruits?
angiosperms
What plant tissue transports water and minerals upward?
xylem
Plants without vascular tissue rely mostly on what method for moving water?
diffusion
What is the name of the stage of the life cycle that produces gametes?
gametophyte stage
What tissue forms annual rings in a tree trunk?
xylem
What major plant group includes mosses and liverworts?
bryophytes
What is the waxy outer layer that prevents water loss from leaves?
cuticle
What is the main difference between vascular and nonvascular plants?
presence/absense of xylem and phloem
What do ferns produce instead of seeds?
spores
What part of the tree transports food (sugar) downward?
ploem
What type of plant produces seeds in cones instead of flowers?
gymnosperms
What organelle in plant cells stores pigments and sometimes starch?
plastid
True or False: Nonvascular plants are generally short and live in moist areas.
true
In seed plants, where does fertilization usually occur?
in the ovule
The outer protective covering of a tree trunk is called what?
bark
Ferns belong to what category of plants?
seedless vascular plants
What strong carbohydrate makes up plant cell walls?
cellulose
What vascular tissue transports sugar produced in leaves?
phloem
What structure in flowering plants develops into a fruit?
ovary
What is the name for the tiny tubes that move water up through stems?
xylem vessels (or tracheids)
What two characteristics divide plants into the four main plant groups?
1) presence of seeds
2) presence of vascular tissue
What type of long, thick-walled plant cell gives support to stems?
fibers
What plant group lacks vascular tissue AND reproduces with spores?
seedless nonvascular plants (bryophytes)
What is the term for a life cycle that alternates between haploid and diploid generations?
alternation of generations
What causes a tree to produce light and dark bands each year?
seasonal variation in xylem growth