Question 1

Stems and roots exhibit indeterminate growth which means:

Accepted Answer

A)   they have a growth pattern similar to animals.
B)   they grow only during the first season regardless of how long the plant lives.
C)   they grow throughout the lifetime of the plant.
D)   they exhibit only secondary growth.
E)   they exhibit only primary growth.F) B) and C)
G) A) and E)

Question 2

An increment borer is a common pest of woody stems.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following describe leaf gaps and bud gaps?

Accepted Answer

A)   gaps in the cylinders of xylem and phloem where traces branch off from them
B)   air spaces in leaves
C)   spaces on internodes between leaves
D)   spaces between bud scales
E)   None of these answers are correct.F) C) and E)
G) B) and E)

Question 4

Knots are branch bases that have become covered over by new wood.

Accepted Answer

A) True 
 B)False

Question 5

Increase in girth of a tree is due to the activity of

Accepted Answer

A)   procambium.
B)   ground meristem.
C)   protoderm.
D)   vascular cambium.
E)   periderm.F) A) and D)
G) All of the above

Question 6

Which of the following have no nodes or internodes?

Accepted Answer

A)   stolons
B)   rhizomes
C)   cladophylls
D)   tubers
E)   None of these answers are correct.F) D) and E)
G) C) and D)

Question 7

Quartersawed boards are those that have been cut along rays, or parallel to the rays.

Accepted Answer

A) True 
 B)False

Question 8

An annual ring

Accepted Answer

A)   consists primarily of cells produced by an apical meristem.
B)   consists of one year's growth of xylem and phloem.
C)   consists of one year's growth of xylem.
D)   includes cortex and pith tissue.
E)   conducts food.F) A) and C)
G) C) and D)

Question 9

The "eyes" of the Irish potato are actually

Accepted Answer

A)   axillary buds.
B)   fibrous roots.
C)   internodes.
D)   adventitious roots.
E)   flower buds.F) C) and D)
G) A) and E)

Question 10

The tyloses that prevent conduction of any kind in wood are most frequently found in

Accepted Answer

A)   laticifers.
B)   sieve-tube elements.
C)   resin canals.
D)   cork cells.
E)   xylem cells.F) A) and E)
G) A) and C)

Question 11

Older, nonfunctioning xylem is called

Accepted Answer

A)   sapwood.
B)   summer wood.
C)   springwood.
D)   winter wood.
E)   heartwood.F) A) and D)
G) B) and D)

Question 12

Which of the following would NOT be part of a stele?

Accepted Answer

A)   cortex
B)   primary xylem
C)   primary phloem
D)   pith
E)   All of these answers are correct.F) C) and D)
G) A) and E)

Question 13

Nearly all plants produce laticifers.

Accepted Answer

A) True 
 B)False

Question 14

Siphonosteles occur in most

Accepted Answer

A)   club mosses.
B)   coniferous plants.
C)   monocots.
D)   ferns.
E)   dicots.F) D) and E)
G) B) and E)

Question 15

Which of the following gives rise to primary tissues?

Accepted Answer

A)   procambium
B)   phelloderm
C)   cork cambium
D)   vascular cambium
E)   phloem raysF) B) and C)
G) A) and E)

Question 16

The ________ is a primary meristem that produces parenchyma cells of the cortex.

Accepted Answer

A)   procambium
B)   ground meristem
C)   protoderm
D)   phelloderm
E)   pericycleF) A) and B)
G) All of the above

Question 17

Monocot stems have discrete regions of xylem and phloem arranged ________; herbaceous dicot stems have discrete regions of xylem and phloem arranged ________.

Accepted Answer

A)   in a ring; randomly
B)   in the stem center only; in a ring directly beneath the epidermis.
C)   directly beneath the epidermis; in the stem center only
D)   randomly; in a ring
E)   in a ring; in a ringF) C) and D)
G) None of the above

Question 18

Wood cells are composed primarily of cellulose and

Accepted Answer

A)   lignin.
B)   pectin.
C)   starch.
D)   glucose.
E)   suberin.F) A) and D)
G) A) and C)

Question 19

The procambium produces

Accepted Answer

A)   secondary xylem and phloem.
B)   cortex.
C)   pith.
D)   epidermis.
E)   primary xylem and phloem.F) C) and D)
G) B) and E)

Question 20

As woody stems age, lenticels develop directly beneath

Accepted Answer

A)   outer xylem.
B)   stomata.
C)   axillary buds.
D)   terminal buds.
E)   outer phloem.F) C) and D)
G) A) and C)

Exam 6: Stems

An annual ring

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Increase in girth of a tree is due to the activity of

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Which of the following gives rise to primary tissues?

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Wood cells are composed primarily of cellulose and

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As woody stems age, lenticels develop directly beneath

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Older, nonfunctioning xylem is called

Correct AnswerverifiedShow Answer

Which of the following describe leaf gaps and bud gaps?

Correct AnswerverifiedShow Answer

Stems and roots exhibit indeterminate growth which means:

Correct AnswerverifiedShow Answer

Knots are branch bases that have become covered over by new wood.

Correct AnswerverifiedShow Answer

Which of the following would NOT be part of a stele?

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The "eyes" of the Irish potato are actually

Correct AnswerverifiedShow Answer

Which of the following have no nodes or internodes?

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Nearly all plants produce laticifers.

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The ________ is a primary meristem that produces parenchyma cells of the cortex.

Correct AnswerverifiedShow Answer

The procambium produces

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The tyloses that prevent conduction of any kind in wood are most frequently found in

Correct AnswerverifiedShow Answer

Siphonosteles occur in most

Correct AnswerverifiedShow Answer

Monocot stems have discrete regions of xylem and phloem arranged ________; herbaceous dicot stems have discrete regions of xylem and phloem arranged ________.

Correct AnswerverifiedShow Answer

Quartersawed boards are those that have been cut along rays, or parallel to the rays.

Correct AnswerverifiedShow Answer

An increment borer is a common pest of woody stems.

Correct AnswerverifiedShow Answer

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Monocot stems have discrete regions of xylem and phloem arranged ; herbaceous dicot stems have discrete regions of xylem and phloem arranged .

Correct Answer
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