Question 1

The Myb gene product is important in

Accepted Answer

A)  allowing the seedling to break through the seed coat.
B)  inducing seed dormancy in harsh environmental conditions.
C)  transcribing the starch gene in the endosperm.
D)  turning on GA production in the aleurone.
E)  activating the  α\alphaα -amylase gene in seeds. F) All of the above
G) None of the above

Question 2

The name of the meristematic tissue that gives rise to future vascular tissue is

Accepted Answer

A)  procambium.
B)  cork cambium.
C)  ground meristem.
D)  dermal tissue.
E)  protoderm.F) A) and E)
G) C) and D)

Question 3

Which of these is an aggregate fruit?

Accepted Answer

A)  grapes
B)  blackberries
C)  cranberries
D)  pineapples
E)  bananasF) A) and B)
G) C) and E)

Question 4

Which of these structures does not begin development during embryogenesis?

Accepted Answer

A)  apical meristem
B)  vascular tissue
C)  floral primordia
D)  leaf primordial
E)  ground tissueF) B) and E)
G) B) and C)

Question 5

The seed bank in a particular habitat is dependent on what characteristic of seeds?

Accepted Answer

A)  the nutritional quality of the seeds
B)  natural variation in the size of seeds
C)  the attractiveness of animal dispersers
D)  seeds with prolonged dormancy
E)  the ability of seeds to absorb soil hormonesF) C) and D)
G) A) and D)

Question 6

The form of a plant body is mainly determined by the planes in which cells divide and by controlled changes in cell shapes.Which of these is not part of these developmental patterns?

Accepted Answer

A)  Growth-regulating hormones and other factors influence the orientation of bundles of microtubules in the interior of the plasma membrane during cell division and cell expansion.
B)  Transport vesicles respond to gravity.
C)  Microtubules guide the orientation of cellulose deposition during the formation of new cell walls.
D)  The orientation of cellulose fibers in the cell wall determines the cell's final shape.
E)  Turgor pressure helps the cells expand in size after cell division.F) B) and D)
G) A) and C)

Question 7

Which one of the following statements about the epicotyl is true?

Accepted Answer

A)  It remains in the ground after a seed has germinated.
B)  It is the portion of the stem axis that is directly below the cotyledons.
C)  The shoot apical meristem of a seedling is located just above it.
D)  It takes up most of the volume within a monocot or dicot seeD.
E)  It forms immediately above the secondary roots of a seedling.F) A) and B)
G) A) and C)

Question 8

Which of these is not an adaptive value of seeds for land plants?

Accepted Answer

A)  Seeds permit plants to postpone development during unfavorable conditions.
B)  Seeds contain stored food that helps young seedlings to develop before they can photosynthesize on their own.
C)  Seeds afford maximum protection to young embyros at their most vulnerable stage of development.
D)  The dispersal of seeds facilitates the migration and distribution of offspring away from the parent plant.
E)  Seeds attract pollinators.F) A) and E)
G) A) and D)

Question 9

Your friend has never gardened before,and when none of the seeds he planted germinated,he asked you to suggest why.Which of the following statements is the best explanation of what occurred?

Accepted Answer

A)  The monocot seeds he used were only able to produce a single cotyledon each.
B)  The seeds were planted too deeply and used up their reserves before reaching the surface and sunlight.
C)  The suspensor failed to develop into an embryo within each seed.
D)  All seeds require fire in order to germinate.
E)  Seeds take more than one season to germinatE.F) B) and E)
G) B) and D)

Question 10

Stratification usually refers to extended exposure to ________________ that is required for some seeds to germinate?

Accepted Answer

A)  long wavelengths of light
B)  low temperatures (chilling) 
C)  high relative humidity
D)  short daylengths
E)  clay soil particlesF) B) and D)
G) C) and D) B

Question 11

Germination and early seedling growth require the use of metabolic reserves in the seed,which include starch grains known as

Accepted Answer

A)  amyloplasts.
B)  protoplasts.
C)  chloroplasts.
D)  chromoplasts.
E)  mitochondria.F) C) and E)
G) A) and C)

Question 12

The first,asymmetric division of the zygote produces two daughter cells that become

Accepted Answer

A)  the suspensor and the embryo.
B)  the epicotyl and the hypocotyls.
C)  the root and the shoot.
D)  the egg and pollen.
E)  the xylem and the phloem.F) A) and D)
G) A) and E)

Question 13

α\alphaα -amylase and other hydrolytic enzymes that allow endosperm starches to be broken down during seed germination are produced in which part of the seed?

Accepted Answer

A)  scutellum
B)  amyloplasts
C)  aleurone layer
D)  plumule
E)  coleorhiza F) A) and D)
G) All of the above

Question 14

Which of the following events is not a characteristic of successful seed germination?

Accepted Answer

A)  The radicle breaks through the seed coat.
B)  The shoot becomes photosynthetic.
C)  The embryo becomes desiccated.
D)  New growth occurs at the meristems.
E)  The seedling orients itself relative to gravity.F) A) and C)
G) A) and D) C

Question 15

The single cotyledon within the kernels of cereal grains is known as

Accepted Answer

A)  an aleurone.
B)  a hypocotyl.
C)  a dicot.
D)  a scutellum.
E)  an amyloplast.F) B) and C)
G) B) and E) D

Question 16

The HOBBIT gene in an embryo helps to control the development of what structure?

Accepted Answer

A)  cotyledon
B)  endosperm
C)  root
D)  epicotyl
E)  root hairF) A) and E)
G) D) and E)

Question 17

Which part of a flower develops into the pericarp of the fruit?

Accepted Answer

A)  stigma
B)  receptacle
C)  ovary wall
D)  embryo
E)  seed coatF) A) and C)
G) C) and E)

Question 18

What is one explanation for why Hox genes that determine body plans are less important in plant embryos than animal embryos?

Accepted Answer

A)  Plants have simpler body plans than animals.
B)  Animal embryos develop more quickly than plant ones.
C)  Plant embryos are relatively simple;most of the development and differentiation of the plant body takes place in seedlings and adult plants.Animal embryos are much more complex.
D)  Plant embryos can go dormant,unlike animal embryos.
E)  Hormones are more important in plant embryos.F) A) and E)
G) C) and D)

Question 19

One of the primary benefits of fruits for a plant is that

Accepted Answer

A)  fruits keep the seeds from escaping.
B)  fruits provide nutrition for the seeds.
C)  fruits induce dormancy in seed embryos.
D)  fruits enhance the dispersal of seeds.
E)  fruits help seeds survive longer.F) D) and E)
G) A) and E)

Question 20

Plant tissues that contain cells capable of repeated division and are found at the root and shoot apices are called

Accepted Answer

A)  primary growth tissues.
B)  secondary growth tissues.
C)  ground tissues.
D)  meristem tissues.
E)  mesophyll tissues.F) A) and B)
G) B) and C)

Exam 37: Vegetative Plant Development

The Myb gene product is important in

Correct AnswerverifiedShow Answer

The name of the meristematic tissue that gives rise to future vascular tissue is

Correct AnswerverifiedShow Answer

Which of these is an aggregate fruit?

Correct AnswerverifiedShow Answer

Which of these structures does not begin development during embryogenesis?

Correct AnswerverifiedShow Answer

The seed bank in a particular habitat is dependent on what characteristic of seeds?

Correct AnswerverifiedShow Answer

The form of a plant body is mainly determined by the planes in which cells divide and by controlled changes in cell shapes.Which of these is not part of these developmental patterns?

Correct AnswerverifiedShow Answer

Which one of the following statements about the epicotyl is true?

Correct AnswerverifiedShow Answer

Which of these is not an adaptive value of seeds for land plants?

Correct AnswerverifiedShow Answer

Your friend has never gardened before,and when none of the seeds he planted germinated,he asked you to suggest why.Which of the following statements is the best explanation of what occurred?

Correct AnswerverifiedShow Answer

Stratification usually refers to extended exposure to ________________ that is required for some seeds to germinate?

Correct AnswerverifiedB

Germination and early seedling growth require the use of metabolic reserves in the seed,which include starch grains known as

Correct AnswerverifiedShow Answer

The first,asymmetric division of the zygote produces two daughter cells that become

Correct AnswerverifiedShow Answer

α\alphaα -amylase and other hydrolytic enzymes that allow endosperm starches to be broken down during seed germination are produced in which part of the seed?

Correct AnswerverifiedShow Answer

Which of the following events is not a characteristic of successful seed germination?

Correct AnswerverifiedC

The single cotyledon within the kernels of cereal grains is known as

Correct AnswerverifiedD

The HOBBIT gene in an embryo helps to control the development of what structure?

Correct AnswerverifiedShow Answer

Which part of a flower develops into the pericarp of the fruit?

Correct AnswerverifiedShow Answer

What is one explanation for why Hox genes that determine body plans are less important in plant embryos than animal embryos?

Correct AnswerverifiedShow Answer

One of the primary benefits of fruits for a plant is that

Correct AnswerverifiedShow Answer

Plant tissues that contain cells capable of repeated division and are found at the root and shoot apices are called

Correct AnswerverifiedShow Answer

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B

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$\alpha$ -amylase and other hydrolytic enzymes that allow endosperm starches to be broken down during seed germination are produced in which part of the seed?

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C

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D

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