Chapter 12 Flashcards
Which of the following is not a characteristic of all plants?
a. multicellular
b. plastids
c. cell walls
d. green color
green color
Which of the following does not belong with the other three?
a. stems
b. cellulose
c. roots
d. leaves
cellulose
A region on a stem where a leaf is or was attached is called a ____________
node
The root systems of grasses that consist of many nearly equal-sized roots are
fibrous root systems
In an opposite leaf arrangement, how many leaves are attached at the node?
two leaves are attached at a node
An annual growth ring is composed of
xylem, springwood, summerwood
The plant tissue that carries water from the roots to the leaves is
xylem
Nonvascular plants do not contain
xylem or phloem
The two main groups of seed plants are
gymnosperms and angiosperms
Angiosperms produce
fruit
What is the minimum number of leaflets a leaf must have to be a compound leaf?
two
Do any nonvascular plants produce seeds? If so, name one.
There is no such plant
Name one gymnosperm
pine, spruce, cycad, ginkgo
major component of plant cell walls
cellulose
caused by the presence of water inside plant cells
turgor pressure
a chloroplast, for example
plastid
made primarily of long, hollow cells that transport water
xylem
a collection of xylem, is also known as ________
wood
conducts sugar solution
phloem
arrangements of xylem and phloem in leaves and nonwoody plants
vascular bundles
the type of cell that can be used to make rope or cloth
fiber
the outermost tissue of leaves, young roots, and young stems
epidermis
a waxy substance secreted by the epidermis
cuticle
the region to the outside of the xylem in a tree trunk
bark
produced by the cork cambium
cork
term for plants that have water-conducting tissue
vascular
the rootlike anchoring structure of mosses
rhizoid
the plant group that contains the true mosses
bryopphytes
another nonvascular plant besides the mosses and liverworts
hornwort
a fern leaf
frond
an immature, coiled fern leaf also known as a fiddlehead
crosier
a plant which has silica in its cell walls
horsetail
the plant group having seeds that are not completely covered
gymnosperms
the plant group known as the flowering plants
angiosperms
True or False
Leaves are organs
True
True or False
Roots branch at nodes
False
True or False
A prime root system has one main root
False
True or False
Herbaceous stems are usually flexible
True
True or False
The petiole is the structure that attaches the leaf blade to the node
True
True or False
Ferns do not require water for their reproduction
False
