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CHAPTER 3-2 TEST SHORT ANSWER
1. In what two ways is vascular tissue important to a plant?
Vascular tissue enables a plant to efficiently transport water and food to all its cells and
supports plants so they can grow large. (key words: structure/support- transportxylem/phloem- get more sunlight)
2. Explain how root like rhizoids differ from true roots.
Root-like rhizoids are different from true roots because they lack vascular tissue. Although, both
bring up water and nutrients and provide some support for the plant, vascular tissue allows roots to
grow deeper and stronger thus obtaining more water and nutrients that in turn allow the plant grow
much larger.
3. What are the five adaptations that plants need to survive on land?
A. RHIZOIDS OR ROOTS TO ABSORB MOISTURE
B. CUTICLES – HELP PREVENT DRYING OUT AND GUARD AGAINST WIDE AND ABRUPT
TEMPERATURE CHANGES
C. STOMATA - ALLOWS FOR GAS EXCHANGE AND REGULATES WATER LOSS
D. STRUCTURES TO TRANSPORT SPERM, THROUGH AIR (WIND), OF BY ANIMALS- SPORES
E. VASCULAR TISSUE – WHICH ALLOW PLANTS TO TRANSPORT MATERIAL OVER GREATER
DISTANCES
4. What are the four differences between monocots and dicots.
Monocotsa. 1 seed leaf or 1 cotyledon
b. Parallel veins
a. Scattered vascular tissue
b. Parts in 3’s
Dicotsa. 2 seed leaves or 2 cotyledons
b. Branching veins
c. Vascular tissue in bundles in a
circular pattern
d. Parts in 4’s and 5’s
5. What are the roles of phloem and xylem in the stem? Include a definition of each in your answer.
The role of phloem and xylem is to transport food, water, and nutrients throughout the plant.
Xylem- the vascular tissue that moves water and nutrients from the roots to the leaves
Phloem- the vascular tissue that moves food moves throughout the plant from the leaves to the roots
6. What is a tropism? Name, define and give an example of the threes main types.
Tropism- a plant’s growth in response toward or away from a stimulus
Thigmotropism- Plants response to touch- vines, Venus fly trap
Phototropism- Plants response to light, sunflowers, morning glories
Gravitropism- Plants response to gravity- roots grow down, plant grows up
7. What are two main differences between angiosperms and gymnosperms?
AngiospermsGymnospermsc. have flowers and fruit
a. have cones
d. seeds protected in fruit
b. seeds not protected (naked seeds)
8. Draw and Label the parts of the flower.