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Plant Unit Test



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

Plants that produce seeds
a.
do not need cuticles on their leaves.
b.
transport the seeds in vascular tissue.
c.
can live in dry environments.
d.
do not need vascular tissue.
 

2. 

A flower's female reproductive parts are called
a.
sepals.
b.
anthers.
c.
pistils.
d.
filaments.
 

3. 

What characteristic do gymnosperms share?
a.
They live only in hot, dry climates.
b.
They produce naked seeds.
c.
They are trees.
d.
They grow cones.
 

4. 

In alternation of generations spores will develop into the _________ and the gamnetes will develop into the ___________.
a.
gametes and zygotes
b.
zygotes, gametes
c.
sporophyte stage and gametophyte stage
d.
gametophyte stage and sporophyte stage
 

5. 

All of the following organisms are nonvascular plants EXCEPT
a.
mosses
b.
liverworts
c.
ferns
d.
hornworts
 

6. 

The adaptation that helps plants retain water is the
a.
vascular tissue
b.
zygote
c.
leaf
d.
cuticle
 

7. 

The responses of plants to environmental stimuli are called
a.
tropisms.
b.
auxins.
c.
gibberellins.
d.
cytokinins.
 

8. 

All angiosperms
a.
produce cones.
b.
produce fruits.
c.
are seedless.
d.
are tropical.
 

9. 

What happens in phloem?
a.
Water is transported up.
b.
Food (carbohydrates) is transported down.
c.
Spores are transported up.
d.
Seeds are transported down.
 

10. 

What stage of a plants life cycle produces sex cells (egg cells and sperm cells)?
a.
root
b.
gametophyte
c.
sporophyte
d.
zygotes
 

11. 

Which of the following is NOT a device for dispersing SEEDS?
a.
insects
b.
wind
c.
water
d.
large animals
 

12. 

What part of a woody stem forms rings that indicate the tree's age?
a.
xylem
b.
phloem
c.
pith
d.
inner bark
 

13. 

The energy that powers photosynthesis comes from
a.
water.
b.
chemicals.
c.
oxygen.
d.
the sun.
 

14. 

What is NOT a function of the leaf's veins (vascular tissue)?
a.
to bring water to the leaf's cells
b.
to connect the leaf with the rest of the plant
c.
to trap the energy of sunlight
d.
to transport food to the rest of the plant
 

15. 

Angiosperms that live for more than two years are called
a.
annuals.
b.
biennials.
c.
perennials.
d.
monocots.
 

16. 

Nonvascular plants differ from vascular plants in
a.
how they make food.
b.
where they obtain water and nutrients.
c.
how they transport water and nutrients.
d.
how they reproduce.
 

17. 

What is pollination?
a.
the development of pollen grains
b.
the development of mature cones
c.
the transfer of pollen from male to female reproductive structures
d.
the joining of sperm and egg cells in an ovule
 

18. 

Which two characteristics do ferns and their relatives share?
a.
vascular tissue and spores
b.
vascular tissue and seeds
c.
vascular tissue and leaflike structures
d.
vascular tissue and underground stems
 

19. 

What is NOT a root function in plants?
a.
to absorb water
b.
to store food
c.
to anchor plants
d.
to produce food
 

20. 

Flowers are
a.
structures for photosynthesis.
b.
vascular tissue structures.
c.
structures for anchoring plants to the ground.
d.
structures for reproduction.
 

21. 

What part of a woody stem produces new vascular tissue?
a.
bark
b.
heartwood
c.
cambium
d.
pith
 

22. 

Why must ferns live in moist environments?
a.
reproduction
b.
no vascular tissue
c.
produce flowers
d.
produce cones
 

23. 

What do plants make (photosynthesis)?
a.
oxygen and carbon dioxide.
b.
carbon dioxide and water.
c.
sugar and oxygen.
d.
water and sugar.
 

24. 

What does a fern have that moss do not?
a.
spores and gametes
b.
gametophyte and a sporophyte
c.
water for reproduction
d.
vascular tissue
 

25. 

Which factor helps you tell the difference between a monocot and a dicot?
a.
number of pollen grains
b.
number of seed leaves
c.
number of leaves
d.
number of eggs
 

26. 

Gases (oxygen and carbon dioxide) pass in and out of a leaf through the
a.
phloem.
b.
xylem.
c.
cuticle.
d.
stomata.
 

27. 

Which of the following is NOT a part of a seed?
a.
stored food
b.
the embryo
c.
the cotyledon
d.
the fruit
 

28. 

What do plants need to begin photosynthesis?
a.
sugar and water.
b.
sugar and oxygen.
c.
carbon dioxide and oxygen.
d.
carbon dioxide and water.
 

29. 

What is causing the bean seedling to bend in Figure 25-1?
plant_unit_test_files/i0300000.jpg
a.
gravitropism
b.
phototropism
c.
rapid response
d.
leaf abscission
 

30. 

Which is NOT a characteristic of a plant's vascular tissue?
a.
It transports water and food inside the plant.
b.
It supports the plant's stems and leaves.
c.
It positions the plant's leaves closer to the sun.
d.
It transports egg and sperm cells for reproduction.
 

31. 

What part of a flower becomes fruit?
a.
ovary
b.
petal
c.
stamen
d.
pistil
 

32. 

Which of the following is a reason why mosses are important?
a.
gardening
b.
forest regrowth
c.
fuel
d.
all of the above
 

33. 

The part of a moss that anchors and absorbs water (and nutrients) from the soil is the
a.
rhizoid.
b.
stalk.
c.
capsule.
d.
gametophyte.
 

34. 

The reproductive structures of a gymnosperm are called
a.
pollen.
b.
ovules.
c.
cones.
d.
sperm cells.
 

35. 

All plants are
a.
autotrophs.
b.
unicellular.
c.
heterotrophs.
d.
prokaryotes.
 

36. 

Directions: Use the following diagram to answer questions 36 through 38.

plant_unit_test_files/i0370000.jpg
What is structure E?
a.
Vascular tissue
b.
Cuticle
c.
Stomata
d.
Spongy Mesophyll
 

37. 

What is structure C?
a.
Vascular tissue
b.
Cuticle
c.
Stomata
d.
Spongy Mesophyll
 

38. 

What is structure F?
a.
Vascular tissue
b.
Cuticle
c.
Stomata
d.
Spongy Mesophyll
 

39. 

Directions: Use the following diagram to answer questions 39 through 43.
plant_unit_test_files/i0400000.jpg
What is the male reproductive structure called?
a.
Pistil
b.
Stamen
c.
Sepal
d.
Flower
 

40. 

What are structures A and B?
a.
Sepal and Petal
b.
Stigma and Style
c.
Filament and Anther
d.
Ovary and Sepal
 

41. 

What structure produces pollen?
a.
A
b.
B
c.
C
d.
D
 

42. 

What are structures C and D?
a.
Sepal and petal
b.
Stigma and Style
c.
Filament and Anther
d.
Ovary and Sepal
 

43. 

What structure produces the female sex cells?
a.
C
b.
D
c.
E
d.
F
 

44. 

Directions: Use the following diagram to answer the following question.
plant_unit_test_files/i0450000.jpg
The part of a moss plant that has leaflike structures is the
a.
capsule (A)
b.
sporophyte (B)
c.
gametophyte (C)
d.
rhizoid (D)
 

45. 

Directions: Use the following diagram to answer question 45.
plant_unit_test_files/i0460000.jpg
What stage or generation is plant A?
a.
sporophytes
b.
gametophytes
c.
embryo
d.
tap root
 



 
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