plant tophat questions Flashcards
What factors might have made it difficult
for a lineage of algae to invade land?
A. Your cells may dry out
B. You will have less physical support
C. Your sperm will have a hard time
fertilizing eggs
D. All of the above
all of the above
How many spores does a charophyte doing zygotic
meiosis make for each fertilization event?
A. 1
B. 4
C. 16
D. As many as it wants
4
Why did plants get taller?
A. Being taller than competitors is important
B. Getting closer to the sun increases photosynthetic rates
C. To avoid being water-logged
Being taller than competitors is important
Why sporophyte dominance? Which of
these statements is false?
A. Spores, which are dispersed by wind, are dispersed further from
greater heights
B. Larger, branched sporophytes allow the plant to make more spores
per fertilization event
C. Gametophytes are constrained by the need for water (and lack a
vascular system)
D. Sporophytes are haploid, which allows them to respond to changing
environments more rapidly and become dominant
Sporophytes are haploid, which allows them to respond to changing
environments more rapidly and become dominant
Do seed plants (gymnosperms and angiosperms) make spores?
A. No.
B. Yes, but the spores turn directly into seeds
C. Yes, but they are not dispersed
D. Yes, but they become the gametophytes while they are still on the sporophyte
E. C and D
C and D
Yes, but they are not dispersed
AND Yes, but they become the gametophytes while they are still on the sporophyte
What is the ploidy level of endosperm?
A. Haploid (n)
B. Diploid (2n)
C. Triploid (3n)
D. Tetraploid (4n)
Triploid (3n)
Apical buds are an example of meristem tissue
in plants, which means:
A. That they will produce only vascular tissue
B. That the cells are undifferentiated and can form all tissues
C. That the cells are mature and can no longer
divide
D. That the cells are haploid
That the cells are undifferentiated and can form all tissues
Sclerenchyma is a specific type of cell in plants that we have not learned
about today. It functions to hold the plant upright and is often located near
the outside of the stems. What kind of tissue is this?
A. Vascular
B. Dermal
C. Ground
D. Structural
Ground
The increase in girth of woody plants is primarily due to the increase in the production of
a) phloem.
b) xylem.
c) pith.
d) cortical tissue.
e) bark.
xylem
You carve your initials 1.5 m above the ground in a
10-m-tall tree. If you return 20 years later and the
tree is 25 m tall, your initials will be _____ above the
ground.
A. 1.0 m
B. 1.5 m
C. 2.5 m
D. 11.5 m
E. 16.5 m
1.5m
A trunk has 62 rings and a branch has 7. The tree is at least ____ years old.
62
Which zone of primary growth in shoots is auxin affecting?
A. The zone of cell division
B. The zone of elongation
C. The zone of differentiation
D. The zone of development
The zone of elongation
If a tree species makes red leaves one fall and the following fall is much cloudier, what color will the
leaves likely be?
A. More red than the first fall
B. Less red than the first fall
C. The same red as the first fall
D. They would likely stay green
E. Impossible to tell
Less red than the first fall
The spongy mesophyll does not:
A. Perform photosynthesis
B. Contain chloroplasts
C. Allow airspaces for CO2 to diffuse
D. Function primarily to transport water to the palisade cells
E. None of the above (spongy mesophyll does all of
these things)
Function primarily to transport water to the palisade cells
Based on the color of leaves, what color(s) of light
will drive photosynthesis by green plants most
efficiently?
a) red only
b) green only
c) blue only
d) red and blue
red and blue
