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BIOLOGY AP, March 2008
PRACTICE Quiz II- Plant Classification, Reproduction, Tropisms
Name ___________________________
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"I understand the Monta Vista Academic Code and will not give or receive any improper aid for this examination. Any
violations of this will result in a zero on this exam and an Academic Code Violation in your permanent record."
signed ________________________________________
1. Use the evolutionary tree on the right to answer the
following questions.
a) Classify moss (bryophytes) as vascular or nonvascular.
_______________
b) Classify ferns as a seed or nonseed plant.
________________
c) Which of the following are most closely related to ferns
evolutionarily?
A. liverworts
C. mosses
B. flowering plants
D. alga
d) Name one advantage that a land plant has over a water
plant.
__________________________________________________
e) Name one disadvantage that a land plant has over a water
plant.
__________________________________________________
2. In a gravitropism study on the plant Gottikus roopas two
tissue samples. Sample A was taken from the side of the root
that was closest to the ground. Sample B was taken from the
side of the root that was farthest from the ground. Both
samples were analyzed for auxin content.
a) Which sample will have a higher content of auxin? A or B? _________
b) Explain your answer to (a). _________________________________________________________________________
__________________________________________________________________________________________________
c) With the same plant (G. roopas) you do another experiment. You inject auxin into one side of the stem. Would this
auxin cause these stem cells to have
more or less growth?
_______________________
3. The diagram to the right is the
life cycle of a fern.
a) Match the capital letters in the
diagram to each of the following
three processes: FERTILIZATION,
MEIOSIS, MITOSIS.
A ___________________
B ___________________
C ___________________
b) Is the zygote considered
DIPLOID or HAPLOID?
c) Put a square around one of the
diagrams that represent a
SPOROPHYTE.
d) Put a circle around one of the diagrams that represent a GAMETOPHYTE.
e) If the diploid cell has 32 chromosomes, then how many chromosomes does the egg in this diagram have?
_________
4. Regulation of stomatal opening and closing is important to plant growth. There are many triggers that cause the
stomata to be open or closed. One of these triggers is Abscissic Acid. Abscissic Acid causes stomata to close. Suppose
you treat a plant with Abscissic Acid.
a) Will there be a HIGH or LOW concentration of K+ ions in the stomata of this plant? ________
b) Would you expect the rate of transpiration to INCREASE, DECREASE or STAY THE SAME in this plant? _______
c) Would you expect the rate of photosynthesis to INCREASE, DECREASE or STAY THE SAME in this plant? ______
5. While working as an ethnobotanist in the Amazon rain forest, you come across a plant species that has never been seen
before. The plant stands 3 feet tall and you find structures that resemble fruits and flowers on this plant.
a) Is this plant most likely VASCULAR or NONVASCULAR? ___________________________
b) Explain your answer to part (a) ______________________________________________________________________
__________________________________________________________________________________________________
c) Based on the structures observed in this plant, which plant is it most closely related to?
Liverwort
Bryophyte
Fern
Gymnosperm
Angiosperm
6. Plants undergo photoperiodism to flower at certain times of the year.
a) During the day, would a plant be exposed to more RED or FAR-RED light? _________________________________
b) What form of phytochrome will result if a plant is exposed to red light? _____________________________________
c) How could you cause a short day plant to flower? ______________________________________________________
__________________________________________________________________________________________________
For questions 7-11 match the appropriate term with its definition. Each definition is only used once.
7. Statoliths ____
A. Seed leaf
8. Endosperm ____
B. Starch-storing organelles involved in the gravitropism response
9. Cotyledon ____
C. Cytoplasmic connections between plant cells
10. Plasmodesmata ____
D. Organic nutrient storage in a seed
Classify the following as either
haploid or diploid.
11. “F” ______________
12. “B” ______________
13. “C” ______________
14. cells of the filament
_________________
15. egg _______________
16. Does “D” refer to the male or
female part of the plant?
________________________
17. The sperm that is released in the
diagram was made directly by
MEIOSIS or MITOSIS?
_______________________
18. What is the function of the pollen
tube? _________________________
_______________________________
_______________________________
19. Are the cells in “F” considered “n”
or “2n” ____________
20. Is the type of plant shown in the
diagram homosporous or
heterosporous?
__________________________
AP-LIKE MULTIPLE CHOICE
21. The following diagram represents what type of plant?
a) Liverwort
b) Monocot
c) Eudicot
d) Moss
22. Which of the following is NOT a valid reason why a seed provides evolutionary benefits to a plant?
a) It allows the embryo to be dispersed away from the parent plant.
b) It provides nutrition for the plant embryo.
c) It can prevent drying out in drought-like conditions.
d) It can remain dormant if conditions are not favorable for germination.
23. Which of the following characteristics is common to all vascular plants that exhibit an alternation of generation in
their life cycles?
a) Fertilization in water
b) Diploid spores
c) Seed production
d) Large, independent gametophytes
e) Multicellular sporophytes
24. Flowering in plants such as tobacco and cocklebur and the germination of certain lettuce seeds are induced primarily
by
a) Photoperiodism
b) Temperature
c) Negative feedback
d) Circadian rhythms
e) Lunar phases