Question 1

Lenticels and stomata function in gas exchange.

Accepted Answer

A) True 
 B)False  True

Question 2

A very thin sheet of desirable wood that is carefully cut so as to produce the best possible view of the grain and then glued to cheaper lumber is called

Accepted Answer

A)  excelsior. 
B)  cooperage. 
C)  quartersawed wood. 
D)  veneer. 
E)  piling wood. 
A)  excelsior. 
B)  cooperage. 
C)  quartersawed wood. 
D)  veneer. 
E)  piling wood. D

Question 3

In woody dicots, which of the following may eventually be crushed as secondary growth occurs?

Accepted Answer

A)  secondary xylem 
B)  cork 
C)  cork cambium 
D)  cortex 
E)  vascular cambium 
A)  secondary xylem 
B)  cork 
C)  cork cambium 
D)  cortex 
E)  vascular cambium D

Question 4

Rays consist primarily of

Accepted Answer

A)  dead cells. 
B)  long-lived parenchyma. 
C)  tracheids. 
D)  vessel elements. 
E)  sieve tubes. 
A)  dead cells. 
B)  long-lived parenchyma. 
C)  tracheids. 
D)  vessel elements. 
E)  sieve tubes.

Question 5

When comparing woody stems to herbaceous stems, woody stems typically ________.

Accepted Answer

A)  have no vascular cambium 
B)  produce new growth each season 
C)  normally live only one season 
D)  are usually green and soft 
E)  Both produce new growth each season and are usually green and soft are correct. 
A)  have no vascular cambium 
B)  produce new growth each season 
C)  normally live only one season 
D)  are usually green and soft 
E)  Both produce new growth each season and are usually green and soft are correct.

Question 6

Which of the following statements pertaining to monocots is true?

Accepted Answer

A)  They have no vascular cambium. 
B)  Their vascular bundles are arranged in a ring. 
C)  Most of them are woody. 
D)  They have a definite cortex and pith. 
E)  Their stems generally have conspicuous cork. 
A)  They have no vascular cambium. 
B)  Their vascular bundles are arranged in a ring. 
C)  Most of them are woody. 
D)  They have a definite cortex and pith. 
E)  Their stems generally have conspicuous cork.

Question 7

In a youngest portion of a woody stem, the epidermis is produced by the ________; in the older woody portion of the stem, the epidermis is replaced by cork produced by the ________.

Accepted Answer

A)  protoderm; cork cambium 
B)  ground meristem; apical meristem 
C)  protoderm; vascular cambium 
D)  procambium; vascular cambium 
E)  cork cambium; protoderm 
A)  protoderm; cork cambium 
B)  ground meristem; apical meristem 
C)  protoderm; vascular cambium 
D)  procambium; vascular cambium 
E)  cork cambium; protoderm

Question 8

Paired appendages associated with leaf petioles are ________.

Accepted Answer

A)  bundle scars 
B)  primordia 
C)  stipules 
D)  cuticles 
E)  leaf scars 
A)  bundle scars 
B)  primordia 
C)  stipules 
D)  cuticles 
E)  leaf scars

Question 9

Which function does the stem have in common with the root?

Accepted Answer

A)  synthesis of starch 
B)  photosynthesis 
C)  conduction 
D)  absorption 
E)  Both photosynthesis and conduction are correct. 
A)  synthesis of starch 
B)  photosynthesis 
C)  conduction 
D)  absorption 
E)  Both photosynthesis and conduction are correct.

Question 10

Leaves and buds are attached to the stem at the

Accepted Answer

A)  internodes. 
B)  axils. 
C)  apex. 
D)  nodes. 
E)  sides. 
A)  internodes. 
B)  axils. 
C)  apex. 
D)  nodes. 
E)  sides.

Question 11

The stems of all flowering plants and conifers have ________.

Accepted Answer

A)  protosteles 
B)  siphonosteles 
C)  woody stems 
D)  eusteles 
E)  stems with pith 
A)  protosteles 
B)  siphonosteles 
C)  woody stems 
D)  eusteles 
E)  stems with pith

Question 12

Primary meristems are produced by cell division in the ________.

Accepted Answer

A)  shoot apical meristem 
B)  leaf primordia 
C)  vascular cambium 
D)  cork cambium 
E)  ray initials 
A)  shoot apical meristem 
B)  leaf primordia 
C)  vascular cambium 
D)  cork cambium 
E)  ray initials

Question 13

A twig's age can be determined by

Accepted Answer

A)  counting the number of leaves or leaf scars on it. 
B)  counting the number of groups of bud scale scars on it. 
C)  measuring the distances between nodes. 
D)  counting nodes. 
E)  examining its pith. 
A)  counting the number of leaves or leaf scars on it. 
B)  counting the number of groups of bud scale scars on it. 
C)  measuring the distances between nodes. 
D)  counting nodes. 
E)  examining its pith.

Question 14

Retardation of water loss by cork cells is provided by

Accepted Answer

A)  suberin and waxes. 
B)  lignin. 
C)  compressed tissue layers. 
D)  stomates. 
E)  Both compressed tissue layers and stomates are correct. 
A)  suberin and waxes. 
B)  lignin. 
C)  compressed tissue layers. 
D)  stomates. 
E)  Both compressed tissue layers and stomates are correct.

Question 15

Phloem rays appear to be continuous with xylem rays.

Accepted Answer

A) True 
 B)False

Question 16

An increment borer is

Accepted Answer

A)  a beetle that consumes wood in several small stages. 
B)  an instrument used for determining the age of a tree. 
C)  a device for calculating the number of leaves on a tree. 
D)  a small wood drill. 
E)  an electronic instrument used for determining if the wood of a tree is healthy. 
A)  a beetle that consumes wood in several small stages. 
B)  an instrument used for determining the age of a tree. 
C)  a device for calculating the number of leaves on a tree. 
D)  a small wood drill. 
E)  an electronic instrument used for determining if the wood of a tree is healthy.

Question 17

You can determine whether an unknown plant structure that you dig up is a stem or root by ________.

Accepted Answer

A)  determining whether it is divided into nodes and internodes 
B)  checking for the presence of a root cap 
C)  checking for the presence of woody tissue and bark 
D)  determining if the structure has protoderm, ground meristem, and procambium 
E)  checking to see if it produces lateral roots with root hairs 
A)  determining whether it is divided into nodes and internodes 
B)  checking for the presence of a root cap 
C)  checking for the presence of woody tissue and bark 
D)  determining if the structure has protoderm, ground meristem, and procambium 
E)  checking to see if it produces lateral roots with root hairs

Question 18

The cortex and the pith consist primarily of parenchyma cells.

Accepted Answer

A) True 
 B)False

Question 19

Corms and bulbs differ in that corms have fleshy leaves whereas bulbs do not.

Accepted Answer

A) True 
 B)False

Question 20

The leaf arrangement of a stem with one leaf at each node is called ________.

Accepted Answer

A)  whorled 
B)  decussate 
C)  opposite 
D)  scattered 
E)  alternate 
A)  whorled 
B)  decussate 
C)  opposite 
D)  scattered 
E)  alternate

Exam 6: Stems

Lenticels and stomata function in gas exchange.

A very thin sheet of desirable wood that is carefully cut so as to produce the best possible view of the grain and then glued to cheaper lumber is called

In woody dicots, which of the following may eventually be crushed as secondary growth occurs?

Rays consist primarily of

When comparing woody stems to herbaceous stems, woody stems typically ________.

Which of the following statements pertaining to monocots is true?

In a youngest portion of a woody stem, the epidermis is produced by the ________; in the older woody portion of the stem, the epidermis is replaced by cork produced by the ________.

Paired appendages associated with leaf petioles are ________.

Which function does the stem have in common with the root?

Leaves and buds are attached to the stem at the

The stems of all flowering plants and conifers have ________.

Primary meristems are produced by cell division in the ________.

A twig's age can be determined by

Retardation of water loss by cork cells is provided by

Phloem rays appear to be continuous with xylem rays.

An increment borer is

You can determine whether an unknown plant structure that you dig up is a stem or root by ________.

The cortex and the pith consist primarily of parenchyma cells.

Corms and bulbs differ in that corms have fleshy leaves whereas bulbs do not.

The leaf arrangement of a stem with one leaf at each node is called ________.

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Meiosis and Alternation of Generation

Genetics

Plant Breeding and Propagation

Evolution

Plant Names and Classification

Domain Kingdom Bacteria, Domain Kingdom Archaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants - Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

Filters

In a youngest portion of a woody stem, the epidermis is produced by the ; in the older woody portion of the stem, the epidermis is replaced by cork produced by the .