Question 1

Which of the following best describes advantages conferred by compound leaves versus simple leaves?

Accepted Answer

A)  There is a greater chance of capturing photons in intermittently shady areas.
B)  There is less chance of damage in high-wind areas.
C)  There is a reduced chance of herbivory.
D)  There is less surface area for water loss.
E)  There is a greater chance of capturing photons in intermittently shady areas and less chance of damage in high-wind areas.F) All of the above
G) D) and E)

Question 2

What would be a plant adaptation that increases exposure of a plant to light in a dense forest?

Accepted Answer

A)  closing of the stomata
B)  lateral buds
C)  apical dominance
D)  absence of petioles
E)  intercalary meristemsF) B) and D)
G) A) and E)

Question 3

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) A) and D)
G) C) and E)

Question 4

Which of the following arise,directly or indirectly,from meristematic activity?

Accepted Answer

A)  secondary xylem
B)  leaves
C)  dermal tissue
D)  tubers
E)  secondary xylem, leaves, dermal tissue, and tubersF) C) and E)
G) B) and D)

Question 5

Secondary growth is best described as

Accepted Answer

A)  consisting mostly of mesophyll layers.
B)  a growth in thickness caused by lateral meristems.
C)  a growth in height caused by apical meristems.
D)  structural, photosynthetic, protective.
E)  dependent on water- and sugar-conducting cells.F) A) and C)
G) C) and D)

Question 6

Which cells are no longer capable of carrying out the process of DNA transcription?

Accepted Answer

A)  tracheids
B)  mature mesophyll cells
C)  companion cells
D)  meristematic cells
E)  glandular cellsF) A) and B)
G) A) and C)

Question 7

Which of the following structure-function pairs is incorrectly matched?

Accepted Answer

A)  green roots-important for photosynthesis in some species of aerial plants with few leaves
B)  root hairs-increase surface area of roots for water and mineral absorption
C)  bulbs-underground roots that store food
D)  prop roots-support tall, top-heavy trees that grow in unstable soil
E)  pneumatophores-air roots that project above water allowing oxygen to enterF) B) and D)
G) B) and E)

Question 8

Which of the following was a challenge to the survival of the first land plants?

Accepted Answer

A)  too much sunlight
B)  a shortage of carbon dioxide
C)  desiccation
D)  animal predationE) B) and C)
F) C) and D)

Question 9

The innermost layer of the root cortex is the

Accepted Answer

A)  core.
B)  pericycle.
C)  endodermis.
D)  pith.
E)  vascular cambium.F) All of the above
G) C) and D)

Question 10

Which part of a plant absorbs most of the water and minerals taken up from the soil?

Accepted Answer

A)  taproots
B)  root hairs
C)  the thick parts of the roots near the base of the stem
D)  storage roots
E)  sections of the root that have secondary xylemF) C) and E)
G) B) and C)

Question 11

Which of the following statements is false?

Accepted Answer

A)  A preprophase band determines where a cell plate will form in a dividing cell.
B)  The way in which a plant cell differentiates is determined by the cell's position in the developing plant body.
C)  Homeotic genes often control morphogenesis.
D)  Plant cells differentiate because the cytoskeleton determines which genes will be turned "on" and "off."
E)  Arabidopsis was the first plant to have its genome sequenced.F) A) and C)
G) A) and B)

Question 12

Based on the ABC hypothesis,what would be the structure of a flower from the outermost whorl that had normal expression of genes A and C and expression of gene B in all four whorls?

Accepted Answer

A)  carpel-petal-petal-carpel
B)  petal-petal-stamen-stamen
C)  sepal-carpel-carpel-sepal
D)  sepal-sepal-carpel-carpel
E)  carpel-carpel-carpel-carpelF) All of the above
G) A) and E)

Question 13

If you were able to walk into an opening cut into the centre of a large redwood tree,when you exit from the middle of the trunk (stem) outward,you would cross,in order

Accepted Answer

A)  the annual rings, new xylem, vascular cambium, phloem, and bark.
B)  the secondary xylem, cork cambium, phloem, and periderm.
C)  the vascular cambium, oldest xylem, and newest xylem.
D)  the secondary xylem, secondary phloem, and vascular cambium.
E)  the summer wood, bark, and phloem.F) A) and D)
G) A) and E)

Question 14

As a youngster,you drive a nail in the trunk of a young tree that is 3 metres tall.The nail is about 1.5 metres from the ground.Fifteen years later,you return and discover that the tree has grown to a height of 30 metres.About how many metres above the ground is the nail?

Accepted Answer

A)  0) 5
B)  1) 5
C)  3) 0
D)  15.0
E)  28.5F) A) and E)
G) A) and B)

Question 15

Which of the following are most responsible for supporting mature,nongrowing parts of the plant?

Accepted Answer

A)  parenchyma cells
B)  collenchyma cells
C)  trichomes
D)  tracheids and vessel elements
E)  sieve-tube elementsF) B) and E)
G) D) and E)

Question 16

The following question is based on parts of a growing primary root.
I. root cap
II. zone of elongation
III. zone of cell division
IV. zone of cell maturation
V. apical meristem
-Which of the following root tissues gives rise to lateral roots?

Accepted Answer

A)  endodermis
B)  phloem
C)  cortex
D)  epidermis
E)  pericycleF) A) and E)
G) A) and B)

Question 17

Before differentiation can begin during the processes of plant cell and tissue culture,parenchyma cells from the source tissue must

Accepted Answer

A)  differentiate into procambium.
B)  undergo dedifferentiation.
C)  increase the number of chromosomes in their nuclei.
D)  enzymatically digest their primary cell walls.
E)  establish a new polarity in their cytoplasm.F) A) and B)
G) B) and D)

Question 18

A cell that is most likely to retain the ability to divide,perform metabolic functions,and store photosynthate would be a

Accepted Answer

A)  parenchyma cell in a leaf.
B)  vessel element in the vascular system.
C)  endodermal cell in a root.
D)  bark cell.
E)  fibre cell.F) B) and C)
G) A) and E)

Question 19

Which of the following is a true statement about growth in plants?

Accepted Answer

A)  Only primary growth is localized at meristems.
B)  Some plants lack secondary growth.
C)  Only stems have secondary growth.
D)  Only secondary growth produces reproductive structures.
E)  Monocots have only primary growth, and eudicots have only secondary growth.F) A) and D)
G) A) and E)

Question 20

Most of the growth of a plant body is the result of

Accepted Answer

A)  cell differentiation.
B)  morphogenesis.
C)  cell division.
D)  cell elongation.
E)  reproduction.F) A) and C)
G) C) and D)

Exam 35: Plant Structure,Growth,and Development

Plants contain meristems whose major function is to

Correct AnswerverifiedShow Answer

Which of the following arise,directly or indirectly,from meristematic activity?

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Which of the following is a true statement about growth in plants?

Correct AnswerverifiedShow Answer

The following question is based on parts of a growing primary root. I. root cap II. zone of elongation III. zone of cell division IV. zone of cell maturation V. apical meristem -Which of the following root tissues gives rise to lateral roots?

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As a youngster,you drive a nail in the trunk of a young tree that is 3 metres tall.The nail is about 1.5 metres from the ground.Fifteen years later,you return and discover that the tree has grown to a height of 30 metres.About how many metres above the ground is the nail?

Correct AnswerverifiedShow Answer

Which of the following structure-function pairs is incorrectly matched?

Correct AnswerverifiedShow Answer

Secondary growth is best described as

Correct AnswerverifiedShow Answer

Which cells are no longer capable of carrying out the process of DNA transcription?

Correct AnswerverifiedShow Answer

Which of the following was a challenge to the survival of the first land plants?

Correct AnswerverifiedShow Answer

Before differentiation can begin during the processes of plant cell and tissue culture,parenchyma cells from the source tissue must

Correct AnswerverifiedShow Answer

Based on the ABC hypothesis,what would be the structure of a flower from the outermost whorl that had normal expression of genes A and C and expression of gene B in all four whorls?

Correct AnswerverifiedShow Answer

Which of the following best describes advantages conferred by compound leaves versus simple leaves?

Correct AnswerverifiedShow Answer

A cell that is most likely to retain the ability to divide,perform metabolic functions,and store photosynthate would be a

Correct AnswerverifiedShow Answer

Most of the growth of a plant body is the result of

Correct AnswerverifiedShow Answer

The innermost layer of the root cortex is the

Correct AnswerverifiedShow Answer

Which of the following statements is false?

Correct AnswerverifiedShow Answer

If you were able to walk into an opening cut into the centre of a large redwood tree,when you exit from the middle of the trunk (stem) outward,you would cross,in order

Correct AnswerverifiedShow Answer

What would be a plant adaptation that increases exposure of a plant to light in a dense forest?

Correct AnswerverifiedShow Answer

Which part of a plant absorbs most of the water and minerals taken up from the soil?

Correct AnswerverifiedShow Answer

Which of the following are most responsible for supporting mature,nongrowing parts of the plant?

Correct AnswerverifiedShow Answer

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