cellulose
The category bryophytes includes organisms ___.
that do not have true roots, leaves, and stems
List the types of vascular plants.
Flowering plants are called ___.
angiosperms
When you eat a carrot, you are eating what kind of root?
taproot
What is the outermost layer of bark (made of dead cells) called?
cork
A plant that loses too much water through evaporation may wilt due to a lack of ___.
turgor pressure
All plants have which kind of cells?
eukaryotic
Why are mosses unable to grow very tall?
Mosses are nonvascular plants, so their water is transported using diffusion. Diffusion can transport water only so high.
What are fern leaves called?
fronds
Pine trees, spruces, and cycads are ___.
gymnosperms
What is the region on a stem where new leaves or branches are produced?
node
Why do annual rings form?
Because xylem grows differently at different times of the year.
Turgor pressure is caused by ___.
the presence of water inside a plant's central vacuoles
Most plants are ___ while fungi are ___.
(producers, comsumers, decomposers)
producers
decomposers
How do mosses and hornworts attach to the ground?
with root-like rhizoids
Ferns require ___ for reproduction to occur.
water
The largest group of plants is called ___.
angiosperms
Which type of stem are the flexible stalks supporting dandelion flowers?
herbaceous
Label this picture.

1. cuticle 2. also cuticle 3. palisade layer 4. chloroplast 5. vein 6. spongy layer 7. stoma
How can a cornstalk remain standing long after it has dried out and lost turgor pressure?
Cornstalks are supported by the fibers around the vascular bundles of their stems.
What is a cellular organelle found in all plants?
plastid
Which vascular plants have been used as an abrasive because of the silica in their cell walls?
horsetails
Seeds contain a young plant called an ___.
embryo
Where in the leaf does the most photosynthesis occur?
palisade layer
What regulates the size of the stoma opening?
guard cells
Stomata allow gasses to move into or out of the leaf. What structure allows gasses to move easily within the leaf?
spongy layer
Describe the similarities & differences between plants and plantlike protists such as algae.
Similarities: both are eukaryotic and producers, and have chloroplasts. Differences: plants have tissues and cuticles, and (most) are multicellular.
What are young fern leaves that resemble violin scrolls called?
fiddleheads
What kind of plant is the pink dogwood, which produces beautiful pink flowers? How do you know?
It is an angiosperm because it is a flowering plant.
What are new cork cells produced by?
cork cambium
What are plants whose vascular bundles are evenly distributed throughout their entire stems?
monocots
What is the difference in function between xylem tissue and phloem tissue?
Xylem transports water and nutrients from the roots to the leaves. Phloem transports sugars out of the leaves.