6th Grade
Science
Chapter 11
Plants
Chapter
Review
San Rafael Falls, Ecuador
Chapter 11
Review Questions
1. About how many varieties of plants have been
discovered?
a. 30,000
c. over 300,000
b. 675,000
d. 300
Answer:
Over 300,000
Chapter 11
Review Questions
2. What makes plants green?
Answer:
chlorophyll
Chapter 11
Review Questions
5. The _____ is a waxy protective layer on leaves?
Answer:
cuticle
Chapter 11
Review Questions
7. Which of the following are seedless nonvascular
plants?
a. moss
c. horsetail
b. liverwort
d. pine
Answer:
Moss and liverwort
Chapter 11
Review Questions
8. What are the small openings in the surface of a
leaf surrounded by guard cells called?
Answer:
stomata
Chapter 11
Review Questions
9. What are the plant structures that anchor the
plants called?
Answer:
roots
Chapter 11
Review Questions
10. What are the plant structures where
photosynthesis takes place called?
Answer:
leaves
Chapter 11
Review Questions
3. Plants use chlorophyll to make sugar using
a process called _________.
Answer:
photosynthesis
Chapter 11
Review Questions
11. What are the plant structures that support the
branches and leaves?
Answer:
stems
Chapter 11
Review Questions
23. Seed plants generally are classified into
two major groups - ______ and______.
Answer:
gymnosperms, angiosperms
Chapter 11
Review Questions
6. Which of the following is a seedless vascular
plant?
a. moss
c. horsetail
b. liverwort
d. pine
Answer:
horsetail
Chapter 11
Review Questions
13. What are the plant structures that anchor
moss called?
Answer:
rhizoids
Chapter 11
Review Questions
14. Mosses, liverworts, and hornworts are
______ plants.
Answer:
Non-vascular, seedless
Chapter 11
Review Questions
17. What do plants use vascular tissue?
a. transfer water - minerals
c. food
b. support the plant
d. photosynthesis
Answer:
Transfer water - minerals
Chapter 11
Review Questions
18. What are the first plants to grow in new or
disturbed area?
Answer:
Pioneer species
Chapter 11
Review Questions
19. Fern leaves are called _____?
Answer:
Fronds
Chapter 11
Review Questions
20. Seedless produce ______ rather than seeds.
Answer:
Spores
Chapter 11
Review Questions
22. ______ plants grow taller and can live farther
from water than _______ plants.
Answer:
Vascular, nonvascular
Chapter 11
Review Questions
15. Ferns, club mosses, and horsetails are
______ plants.
Answer:
vascular, seedless
Chapter 11
Review Questions
24. A herbaceous stem is ______.
Answer:
Soft and green
Chapter 11
Review Questions
26. ______ allow carbon dioxide, water, and
oxygen to enter and exit a leaf.
Answer:
stomata
Chapter 11
Review Questions
27. ____ is often the largest part of a plant.
Answer:
roots
Chapter 11
Review Questions
29. ______ transports the sugar (food) in the
vascular system of a seed plant.
Answer:
phloem
Chapter 11
Review Questions
31. _____ are vascular plants that produce seeds
that are not protected by fruit.
Answer:
gymnosperms
Chapter 11
Review Questions
30. ______ produces most of the new phloem
and xylem in the vascular system of a
seed plant.
Answer:
cambium
Chapter 11
Review Questions
37. Peanuts, peas, apples, and oranges
come from _____
Answer:
dicots
Chapter 11
Review Questions
25. Each stomata is surrounded by two_____ cells.
Answer:
guard
Chapter 11
Review Questions
32. _____ are vascular plants that produce seeds
that are protected by fruit.
Answer:
Angiosperms
Chapter 11
Review Questions
38. Plants called biennials complete their life
cycles in _____ year(s).
Answer:
two
Chapter 11
Review Questions
28. ______ transports the water in the vascular
system of a seed plant.
Answer:
xylem
Chapter 11
Review Questions
33. Conifers, cycads, and ginkgoes are classified
as _______.
Answer:
gymnosperms
Chapter 11
Review Questions
40. Plants called perennials complete their life
cycles in _____ year(s).
Answer:
several years
Chapter 11
Review Questions
34. Apple trees, maple trees, and oak trees are
classified as _______.
Answer:
Angiosperms
Chapter 11
Review Questions
35. Angiosperms are divided into two groups _____ and _____.
Answer:
Monocots, dicots
Chapter 11
Review Questions
36. Corn, rice, wheat, and barley come from _____
Answer:
monocots
Chapter 11
Review Questions
39. Plants called annuals complete their life
cycles in _____ year(s).
Answer:
one