Which of the following is NOT an essential characteristic of plants?
a) multicellular
b) eukaryotes
c) cuticle
d) cell wall
c) cuticle
100
Name the three major groups of seedless nonvascular plants.
mosses, liverworts, hornworts
100
True or False: All seed plants have vascular tissue and use pollen to reproduce.
True
100
What does the word "gymnosperm" literally mean?
Naked seed
100
Fill in the blanks: A plant's growth response __________ or _________ from a stimulus is called a tropism.
toward; away
200
Which stage in a plant's life cycle produces sperm and egg cells?
gametophyte
200
What are thin, rootlike structures that anchor moss and absorb water and nutrients from the soil?
rhizoids
200
Name the two types of vascular tissue, identify what they transport, and what direction they transport them.
phloem: food, down
xylem: water + minerals, up
200
Name two kinds of gymnosperms
cycads, conifers, ginkgoes, gnetophytes
200
Name any three "-tropisms" that plants can have.
thigmotropism, phototropism, geotropism (or gravitropism), and hydrotropism
300
What adaptation for living on land is missing from this list? Retaining Water, Reproduction, Support, ...
Transporting Materials
300
What is the technical term for the leaves on a fern?
fronds
300
What part of the seed provides the food for a young plant as it first germinates?
cotyledon(s)
300
Most gymnosperms have reproductive structures called what?
cones
300
Chemical messengers that affect how an organism grows and develops.
hormones
400
A fertilized egg is called a(n)...
zygote
400
Where do spores grow on ferns?
on the underside of the fronds
400
Name three functions of roots.
anchors the plant, absorbs water and minerals from the soil, sometimes store food
400
What do we call the ripened ovary that encloses one or more seeds in angiosperms?
fruit
400
What is the name of the plant hormone that speeds up the rate at which a plant's cells grow?
auxin
500
Plants that lack a well-developed system of tubes for transporting water and other materials are known as...
nonvascular plants
500
Rank these in the order of increasing number of species:
a) mosses, liverworts, hornworts
b) hornworts, liverworts, mosses
c) liverworts, mosses, hornworts
b) hornworts, liverworts, mosses
500
What is the process by which water evaporates from a plant's leaves?
transpiration
500
Which is not true of dicots?
a) two cotyledons
b) branching veins
c) bundles of vascular tissue arranged in a ring
d) flower parts in multiples of 3
d) flower parts in multiples of 3
500
If positive tropism means the plant grows toward the stimulus and negative tropism means the plant grows away, label the following with either "positive" or "negative":
a) stem (light)
b) roots (gravity)
c) stem (gravity)
d) roots (moisture)
a) stem (light) positive
b) roots (gravity) positive
c) stem (gravity) negative
d) roots (moisture) positive