Question 1

Which type of roots support tall and top-heavy plants?

Accepted Answer

A)  buttress roots
B)  storage roots
C)  tap roots
D)  pneumatophores
E)  prop rootsF) None of the above
G) A) and E)

Question 2

Arrange the following steps of cell differentiation during plant growth (in length) in the correct sequence.
i.cell division in primary meristem
ii.cell division in apical meristem
iii.differentiated cells
iv.growing cells in primary meristem

Accepted Answer

A)  i,ii,iii,iv
B)  ii,i,iv,iii
C)  ii,iii,i,iv
D)  i,iii,ii,iv
E)  iii,ii,iv,iiF) A) and D)
G) B) and E)

Question 3

Arrange the following tissues in an order from the upper surface to the middle area of a leaf cross section.
i.epidermis
ii.xylem
iii.palisade mesophyll
iv.spongy mesophyll

Accepted Answer

A)  i,ii,iii,iv
B)  ii,i,iv,iii
C)  iii,i,ii,iv
D)  iv,iii,i,ii
E)  i,iii,iv,iiF) A) and B)
G) A) and C)

Question 4

Which of the following would not be seen in a cross section through the woody part of a root?

Accepted Answer

A)  sclerenchyma cells
B)  sieve-tube elements
C)  parenchyma cells
D)  root hairsE) B) and C)
F) All of the above

Question 5

The vascular bundle in the shape of a single central cylinder in a root is called the

Accepted Answer

A)  cortex.
B)  stele.
C)  endodermis.
D)  periderm.
E)  pith.F) B) and C)
G) A) and E)

Question 6

Which of the following cells in a dicot stem is only one cell thick?

Accepted Answer

A)  cortex
B)  pith
C)  secondary xylem
D)  vascular cambium
E)  phloemF) A) and E)
G) B) and C)

Question 7

Plants contain meristems whose major function is to

Accepted Answer

A)  attract pollinators.
B)  absorb ions.
C)  photosynthesize.
D)  produce more cells.
E)  produce flowers.F) B) and D)
G) A) and B)

Question 8

Xylem,a vascular tissue,performs which of the following functions?

Accepted Answer

A)  storage of food
B)  photosynthesis
C)  aerobic respiration
D)  transport of water and minerals
E)  transport of foodF) None of the above
G) C) and E)

Question 9

The secondary growth in stems and roots of woody plants produced by the

Accepted Answer

A)  intercalary meristem.
B)  lateral meristem.
C)  apical meristem.
D)  axillary meristem.E) A) and C)
F) B) and C)

Question 10

Which tissue is responsible for the recovery and rapid growth of damaged leaves of grass grazed by sheep in a pasture?

Accepted Answer

A)  parenchyma
B)  apical meristem
C)  axillary buds
D)  mesophyll
E)  intercalary meristemF) A) and B)
G) A) and E)

Question 11

Adventitious roots in monocots are very helpful in coastal ecosystems to reduce

Accepted Answer

A)  water absorption.
B)  evaporation.
C)  soil erosion.
D)  nutrient absorption.
E)  decomposition.F) A) and B)
G) A) and C)

Question 12

Vascular cambium in eudicot stems produce

Accepted Answer

A)  dermal and ground tissue.
B)  lateral tissues.
C)  pith.
D)  secondary xylem and phloem.
E)  shoots and roots.F) All of the above
G) A) and E)

Question 13

Which of the following is a true statement?

Accepted Answer

A)  Flowers may have secondary growth.
B)  Secondary growth is a common feature of eudicot leaves.
C)  Secondary growth is produced by both the vascular cambium and the cork cambium.
D)  Primary growth and secondary growth alternate in the life cycle of a plant.
E)  Plants with secondary growth are typically the smallest ones in an ecosystem.F) A) and E)
G) A) and B)

Question 14

Which of the plant organs pays a pivotal role on dissipating heat?

Accepted Answer

A)  stem
B)  root
C)  leaf
D)  tuber
E)  stolonF) C) and D)
G) A) and D)

Question 15

A plant has the following characteristics: a taproot system,several growth rings evident in a cross section of the stem,and a layer of bark around the outside.Which of the following best describes the plant?

Accepted Answer

A)  herbaceous eudicot
B)  woody eudicot
C)  woody monocot
D)  herbaceous monocot
E)  woody annualF) A) and C)
G) A) and E)

Question 16

Mature cork cells deposit a waxy substance called ________ in cell walls.

Accepted Answer

A)  suberin
B)  lignin
C)  chitin
D)  cellulose
E)  pectinF) B) and C)
G) A) and B)

Question 17

Annual rings in woody plant stems and roots represent the

Accepted Answer

A)  primary phloem of spring and summer.
B)  primary and secondary xylem of summer.
C)  secondary xylem of spring and summer.
D)  secondary phloem of spring and summer.
E)  primary and secondary xylem of spring.F) A) and B)
G) B) and C)

Question 18

The lateral root originates in which of the following parts of the root?

Accepted Answer

A)  xylem
B)  phloem
C)  endodermis
D)  pericycle
E)  peridermF) C) and E)
G) A) and E)

Question 19

Axillary buds

Accepted Answer

A)  are initiated by the cork cambium.
B)  have dormant meristematic cells.
C)  are composed of a series of internodes lacking nodes.
D)  grow immediately into shoot branches.
E)  do not form a vascular connection with the primary shoot.F) A) and E)
G) None of the above

Question 20

Which of the following responses is the correct order of tissues from the center to the periphery (outside) of a two-year-old dicot stem cross section?

Accepted Answer

A)  primary xylem,secondary xylem,vascular cambium,secondary phloem,secondary xylem
B)  secondary xylem,secondary phloem,vascular cambium,secondary xylem,primary xylem
C)  primary phloem,primary xylem,secondary xylem,secondary phloem,vascular cambium
D)  secondary phloem,secondary xylem,primary xlem,primary phloem,vascular cambium
E)  vascular cambium,primary xylem,secondary xylem,primary phloem,secondary phloemF) All of the above
G) A) and E)

Exam 28: Plant Structure and Growth

The secondary growth in stems and roots of woody plants produced by the

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Which tissue is responsible for the recovery and rapid growth of damaged leaves of grass grazed by sheep in a pasture?

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Which of the plant organs pays a pivotal role on dissipating heat?

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Which of the following cells in a dicot stem is only one cell thick?

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Vascular cambium in eudicot stems produce

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Arrange the following steps of cell differentiation during plant growth (in length) in the correct sequence. i.cell division in primary meristem ii.cell division in apical meristem iii.differentiated cells iv.growing cells in primary meristem

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Plants contain meristems whose major function is to

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Which of the following is a true statement?

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Xylem,a vascular tissue,performs which of the following functions?

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The lateral root originates in which of the following parts of the root?

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Which of the following would not be seen in a cross section through the woody part of a root?

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Annual rings in woody plant stems and roots represent the

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Which of the following responses is the correct order of tissues from the center to the periphery (outside) of a two-year-old dicot stem cross section?

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Which type of roots support tall and top-heavy plants?

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Arrange the following tissues in an order from the upper surface to the middle area of a leaf cross section. i.epidermis ii.xylem iii.palisade mesophyll iv.spongy mesophyll

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The vascular bundle in the shape of a single central cylinder in a root is called the

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Adventitious roots in monocots are very helpful in coastal ecosystems to reduce

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Mature cork cells deposit a waxy substance called ________ in cell walls.

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Axillary buds

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A plant has the following characteristics: a taproot system,several growth rings evident in a cross section of the stem,and a layer of bark around the outside.Which of the following best describes the plant?

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