Question 1

Water is conducted through a plant most rapidly through

Accepted Answer

A)  parenchyma cells.
B)  sclerenchyma cells.
C)  sieve tubes.
D)  vessel members.
E)  phloem.F) A) and D)
G) B) and E)

Question 2

Axillary buds are produced

Accepted Answer

A)  at the tip of a stem.
B)  in roots.
C)  in the angle between a petiole and a stem.
D)  by lateral meristems.
E)  in the cork cambium.F) B) and C)
G) C) and D)

Question 3

Which of the following cell types is most efficient at conducting water horizontally in woody tissues?

Accepted Answer

A)  rays
B)  tracheids
C)  vessel elements
D)  fibers
E)  sieve tubesF) C) and D)
G) C) and E)

Question 4

If you examined a cross section of a woody stem under the microscope and located the vascular cambium,everything inside of the vascular cambium ring (towards the center of the stem) would be

Accepted Answer

A)  xylem (primary and secondary) .
B)  xylem (only primary) .
C)  phloem (primary and secondary) .
D)  phloem (only secondary) .
E)  phelloderm.F) A) and B)
G) B) and E)

Question 5

Functional secondary phloem

Accepted Answer

A)  includes live companion cells and dead sieve cells.
B)  encompasses more stem volume than secondary xylem.
C)  primarily stores carbohydrates.
D)  is part of the inner bark.
E)  is produced by the cork cambium.F) B) and C)
G) A) and B)

Question 6

Annual rings in a tree trunk result from

Accepted Answer

A)  deposition of colored materials in the oldest cells.
B)  the variation in cell size due to different growth conditions throughout a year.
C)  the alternation of xylem and phloem produced in one year.
D)  the kinds of cells,parenchyma or sclerenchyma,produced by the cambium.
E)  the proportion of wood cells and cork cells in the xylem.F) A) and B)
G) A) and C)

Question 7

In plants with only primary growth,the epidermis is not

Accepted Answer

A)  one cell thick.
B)  the outer protective coating of the plant.
C)  produced by the protoderm.
D)  covered by a waxy layer that constitutes the cuticle.
E)  covered with bark.F) A) and D)
G) All of the above

Question 8

Perforation plates can be found in

Accepted Answer

A)  sieve cells.
B)  tracheids.
C)  sieve tube members.
D)  vessel members.
E)  companion cells.F) C) and E)
G) B) and D)

Question 9

A friend who is not a biologist tells you that she grows irises from iris roots.You explain to her that the "root" she is planting is not a root,but instead is called a rhizome."Why?" she asked.You explain.

Accepted Answer

A)  "A root grows vertically,not horizontally."
B)  "A rhizome has nodes and internodes and is really a modified stem that can exist underground."
C)  "A root stores nutrients,rhizomes are underground stems that do not store nutrients."
D)  "A rhizome,although a modified stem,acts as a root does.In other words a rhizome is a stem-root combination."
E)  "A rhizome is a modified root that is able to grow leaves."F) A) and E)
G) A) and D)

Question 10

The name of the cambium that ultimately gives rise to secondary xylem and phloem is the

Accepted Answer

A)  vascular cambium.
B)  cork cambium.
C)  cortex cambium.
D)  secondary cambium.
E)  primary cambium.F) A) and D)
G) B) and D)

Question 11

Which statement about secondary growth in plants is not correct?

Accepted Answer

A)  Secondary growth in plants is a result of lateral meristems.Trees and shrubs have active lateral meristems.
B)  Secondary growth in plants increases the girth (diameter) of woody plants.
C)  Secondary growth in woody plants results because there are two cylinders of actively dividing cells.The cylinders are cork cambium and vascular cambium.
D)  The cork cambium produces secondary phloem while the vascular cambium produces secondary xylem.
E)  Only some plants have secondary growth.F) B) and C)
G) A) and B)

Question 12

Primary growth in plants originates in

Accepted Answer

A)  apical meristems.
B)  lateral meristems.
C)  vascular cambium.
D)  cork cambium.
E)  tracheids.F) A) and B)
G) None of the above

Question 13

Your cousin told you a rather scary story about a night spent in a cornfield.He claims that there were popping noises around him all night.You say,"Oh,I can explain what you heard.Those popping noises were

Accepted Answer

A)  the apical meristems cells in the corn stalks elongating."
B)  the developing of the kernels of corn on the ears of the corn stalks."
C)  the expansion of the lateral meristems increasing the girth of the corn stalk."
D)  the growth of the intercalary meristem inside the corn stalk."
E)  the development of the tassels on top of the corn stalk."F) None of the above
G) A) and B)

Question 14

The periderm does not include

Accepted Answer

A)  cork cells.
B)  cork cambium.
C)  phelloderm.
D)  vascular cambium.
E)  bark.F) C) and D)
G) A) and B)

Question 15

In an experiment,some herbaceous,nonwoody plants were exposed to frequent windy conditions or mechanical shaking for several hours per day.The flexibility of these plants was due to the _____________ cells.

Accepted Answer

A)  parenchyma
B)  aerenchyma
C)  periderm
D)  collenchyma
E)  sclerenchymaF) A) and E)
G) A) and D)

Question 16

Root hairs grow actively in which area of the developing roots?

Accepted Answer

A)  root cap
B)  zone of maturation
C)  zone of elongation
D)  zone of cell division
E)  endodermisF) A) and D)
G) A) and C)

Question 17

Choose the letter of the best match from the following:
-Lateral meristem that contributes to the increase in thickness of a stem or root.

Accepted Answer

A)  protoderm
B)  vascular cambium
C)  apical meristem
D)  procambium
E)  ground meristemF) C) and D)
G) A) and B)

Question 18

The pattern of leaf arrangement on a stem is called

Accepted Answer

A)  protodermis.
B)  phyllotaxy.
C)  nodular termini.
D)  meristematic spacing.
E)  axillary arrangement.F) B) and E)
G) C) and D)

Question 19

Which type of stem does not produce a cork cambium?

Accepted Answer

A)  woody stems
B)  secondary stems
C)  second year growth stems
D)  specialized climbing stems
E)  monocot stemsF) A) and B)
G) A) and C)

Question 20

You go to a fancy restaurant and ask for some petioles on your salad.What does the waiter bring you?

Accepted Answer

A)  carrots
B)  brussel sprouts
C)  lettuce
D)  celery
E)  chivesF) A) and B)
G) A) and E)

Exam 36: Plant Form

In an experiment,some herbaceous,nonwoody plants were exposed to frequent windy conditions or mechanical shaking for several hours per day.The flexibility of these plants was due to the _____________ cells.

Correct AnswerverifiedShow Answer

Functional secondary phloem

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If you examined a cross section of a woody stem under the microscope and located the vascular cambium,everything inside of the vascular cambium ring (towards the center of the stem) would be

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You go to a fancy restaurant and ask for some petioles on your salad.What does the waiter bring you?

Correct AnswerverifiedShow Answer

Primary growth in plants originates in

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Choose the letter of the best match from the following: -Lateral meristem that contributes to the increase in thickness of a stem or root.

Correct AnswerverifiedShow Answer

Perforation plates can be found in

Correct AnswerverifiedShow Answer

The pattern of leaf arrangement on a stem is called

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The name of the cambium that ultimately gives rise to secondary xylem and phloem is the

Correct AnswerverifiedShow Answer

The periderm does not include

Correct AnswerverifiedShow Answer

Water is conducted through a plant most rapidly through

Correct AnswerverifiedShow Answer

Which of the following cell types is most efficient at conducting water horizontally in woody tissues?

Correct AnswerverifiedShow Answer

A friend who is not a biologist tells you that she grows irises from iris roots.You explain to her that the "root" she is planting is not a root,but instead is called a rhizome."Why?" she asked.You explain.

Correct AnswerverifiedShow Answer

Which type of stem does not produce a cork cambium?

Correct AnswerverifiedShow Answer

Your cousin told you a rather scary story about a night spent in a cornfield.He claims that there were popping noises around him all night.You say,"Oh,I can explain what you heard.Those popping noises were

Correct AnswerverifiedShow Answer

Annual rings in a tree trunk result from

Correct AnswerverifiedShow Answer

Root hairs grow actively in which area of the developing roots?

Correct AnswerverifiedShow Answer

Which statement about secondary growth in plants is not correct?

Correct AnswerverifiedShow Answer

Axillary buds are produced

Correct AnswerverifiedShow Answer

In plants with only primary growth,the epidermis is not

Correct AnswerverifiedShow Answer

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