Question 1

A(n) _______ is the point at which a leaf attaches to a stem.

Accepted Answer

A)  internode 
B)  bud 
C)  node 
D)  apical bud 
E)  petiole 
A)  internode 
B)  bud 
C)  node 
D)  apical bud 
E)  petiole

Question 2

Which of the following is typical of cork cells?

Accepted Answer

A)  Location interior to cork cambium 
B)  Waxy suberin 
C)  Water storage 
D)  Active cell division 
E)  Abundance in monocots 
A)  Location interior to cork cambium 
B)  Waxy suberin 
C)  Water storage 
D)  Active cell division 
E)  Abundance in monocots

Question 3

Lenticels are spongy regions on the surface of some woody stems, which function in

Accepted Answer

A)  water uptake. 
B)  water conservation. 
C)  gas exchange. 
D)  protection of growing layers. 
E)  support of the plant. 
A)  water uptake. 
B)  water conservation. 
C)  gas exchange. 
D)  protection of growing layers. 
E)  support of the plant.

Question 4

Which statement about parenchyma cells is not true?

Accepted Answer

A)  They are alive when they perform their functions. 
B)  They typically lack a secondary wall. 
C)  They often function as storage depots. 
D)  They are the most common cell type in the plant body. 
E)  They are found only in stems and roots. 
A)  They are alive when they perform their functions. 
B)  They typically lack a secondary wall. 
C)  They often function as storage depots. 
D)  They are the most common cell type in the plant body. 
E)  They are found only in stems and roots.

Question 5

The region of cell division in a primary root is located

Accepted Answer

A)  in the root cap. 
B)  in the apical meristem. 
C)  in the region of elongation. 
D)  in the area containing differentiated tissues. 
E)  throughout the root. 
A)  in the root cap. 
B)  in the apical meristem. 
C)  in the region of elongation. 
D)  in the area containing differentiated tissues. 
E)  throughout the root.

Question 6

The _______ is a layer of root cells that contain the waterproofing substance suberin in their cell walls.

Accepted Answer

The answer of The _______ is a layer of root...

Question 7

The polysaccharides that make up the primary cell wall

Accepted Answer

A)  are strong but flexible. 
B)  form a water-tight matrix. 
C)  are rigid and allow no further expansion. 
D)  behave independently. 
E)  are relatively minor contributors to the carbon balance of ecosystems. 
A)  are strong but flexible. 
B)  form a water-tight matrix. 
C)  are rigid and allow no further expansion. 
D)  behave independently. 
E)  are relatively minor contributors to the carbon balance of ecosystems.

Question 8

There are many examples of useful domesticated plants in which

Accepted Answer

A)  many crops have been derived from a single species. 
B)  it is possible to determine how they were domesticated over time. 
C)  the difference between the crop plant and the wild plant is controlled by a single gene. 
D)  it is necessary to preserve their seeds to maintain genetic diversity. 
E)  All of the above 
A)  many crops have been derived from a single species. 
B)  it is possible to determine how they were domesticated over time. 
C)  the difference between the crop plant and the wild plant is controlled by a single gene. 
D)  it is necessary to preserve their seeds to maintain genetic diversity. 
E)  All of the above

Question 9

Describe the development of a xylem cell in a monocot from its origin in the apical meristem.

Accepted Answer

The apical meristem gives rise to the pr

Question 10

Plants are capable of indeterminate growth because of

Accepted Answer

A)  regions of nondividing cells. 
B)  meristem tissues. 
C)  the epidermis. 
D)  their xylem. 
E)  All of the above 
A)  regions of nondividing cells. 
B)  meristem tissues. 
C)  the epidermis. 
D)  their xylem. 
E)  All of the above

Question 11

The primary function of a typical leaf is

Accepted Answer

A)  photosynthesis. 
B)  food storage. 
C)  support. 
D)  anchorage. 
E)  absorption. 
A)  photosynthesis. 
B)  food storage. 
C)  support. 
D)  anchorage. 
E)  absorption.

Question 12

Moving from the center of a tree trunk outward, which of the following represents the correct order of vascular tissues?

Accepted Answer

A)  Primary xylem, secondary xylem, vascular cambium, secondary phloem, primary phloem 
B)  Secondary xylem, primary xylem, vascular cambium, primary phloem, secondary phloem 
C)  Primary xylem, primary phloem, secondary xylem, secondary phloem, vascular cambium 
D)  Primary xylem, primary phloem, vascular cambium, secondary phloem, secondary xylem 
E)  Secondary xylem, secondary phloem, vascular cambium, primary xylem, primary phloem 
A)  Primary xylem, secondary xylem, vascular cambium, secondary phloem, primary phloem 
B)  Secondary xylem, primary xylem, vascular cambium, primary phloem, secondary phloem 
C)  Primary xylem, primary phloem, secondary xylem, secondary phloem, vascular cambium 
D)  Primary xylem, primary phloem, vascular cambium, secondary phloem, secondary xylem 
E)  Secondary xylem, secondary phloem, vascular cambium, primary xylem, primary phloem

Question 13

One function of the ground tissue in a plant is

Accepted Answer

A)  photosynthesis. 
B)  to protect the plant. 
C)  to anchor the plant. 
D)  water conduction. 
E)  sugar conduction. 
A)  photosynthesis. 
B)  to protect the plant. 
C)  to anchor the plant. 
D)  water conduction. 
E)  sugar conduction.

Question 14

"An organized group of cells, working together as a functional unit" is the definition of a(n)

Accepted Answer

A)  organism. 
B)  organ. 
C)  organ system. 
D)  tissue. 
E)  tissue system. 
A)  organism. 
B)  organ. 
C)  organ system. 
D)  tissue. 
E)  tissue system.

Question 15

An important discovery of plant genetics is that

Accepted Answer

A)  in a given species, small genetic differences can lead to large differences in plant form. 
B)  complexity of structure corresponds to complexity of basic plant components. 
C)  within plant species there is little variation in form because there is little genetic variation. 
D)  in a given species , large genetic differences are necessary for large differences in form. 
E)  large differences in the forms of different species of plants are always caused by large genetic differences. 
A)  in a given species, small genetic differences can lead to large differences in plant form. 
B)  complexity of structure corresponds to complexity of basic plant components. 
C)  within plant species there is little variation in form because there is little genetic variation. 
D)  in a given species , large genetic differences are necessary for large differences in form. 
E)  large differences in the forms of different species of plants are always caused by large genetic differences.

Question 16

Primary growth occurs at the

Accepted Answer

A)  lateral meristems. 
B)  fruit. 
C)  quiescent center. 
D)  apical meristems. 
E)  wood. 
A)  lateral meristems. 
B)  fruit. 
C)  quiescent center. 
D)  apical meristems. 
E)  wood.

Question 17

Periderm

Accepted Answer

A)  contains lenticels that allow for gas exchange. 
B)  is produced during primary growth. 
C)  is permanent; it lasts as long as the plant does. 
D)  is the innermost part of the plant. 
E)  contains vascular bundles. 
A)  contains lenticels that allow for gas exchange. 
B)  is produced during primary growth. 
C)  is permanent; it lasts as long as the plant does. 
D)  is the innermost part of the plant. 
E)  contains vascular bundles.

Question 18

When a tree is cut down, the cut surface of the stump often shows _______ due to variations in the size of the vessels.

Accepted Answer

The answer of When a tree is cut down, the...

Question 19

A root is called adventitious if it

Accepted Answer

A)  forms a mycorrhizal association. 
B)  belongs to a fibrous root system. 
C)  originates from a stem. 
D)  is modified for storage. 
E)  is actively growing. 
A)  forms a mycorrhizal association. 
B)  belongs to a fibrous root system. 
C)  originates from a stem. 
D)  is modified for storage. 
E)  is actively growing.

Question 20

Sieve tube elements have sieve plates where they join other sieve tube elements. Which of the following statements about the sieve plates is true?

Accepted Answer

A)  Sieve plate pores are enlargements of meristems. 
B)  They allow conduction between sieve tube cells through plasmodesmata. 
C)  They allow for the joining of cytoplasm between adjacent stomata. 
D)  They contain the organelles of the cell. 
E)  None of the above 
A)  Sieve plate pores are enlargements of meristems. 
B)  They allow conduction between sieve tube cells through plasmodesmata. 
C)  They allow for the joining of cytoplasm between adjacent stomata. 
D)  They contain the organelles of the cell. 
E)  None of the above

Exam 34: The Plant Body

A(n) _______ is the point at which a leaf attaches to a stem.

Which of the following is typical of cork cells?

Lenticels are spongy regions on the surface of some woody stems, which function in

Which statement about parenchyma cells is not true?

The region of cell division in a primary root is located

The _______ is a layer of root cells that contain the waterproofing substance suberin in their cell walls.

The polysaccharides that make up the primary cell wall

There are many examples of useful domesticated plants in which

Describe the development of a xylem cell in a monocot from its origin in the apical meristem.

Plants are capable of indeterminate growth because of

The primary function of a typical leaf is

Moving from the center of a tree trunk outward, which of the following represents the correct order of vascular tissues?

One function of the ground tissue in a plant is

"An organized group of cells, working together as a functional unit" is the definition of a(n)

An important discovery of plant genetics is that

Primary growth occurs at the

Periderm

When a tree is cut down, the cut surface of the stump often shows _______ due to variations in the size of the vessels.

A root is called adventitious if it

Sieve tube elements have sieve plates where they join other sieve tube elements. Which of the following statements about the sieve plates is true?

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