Question 1

Explain the structural differences that help a botanist differentiate between a monocot and a eudicot.

Accepted Answer

Monocots have the following structural f...

Question 2

While transplanting flowers you accidentally damaged the roots.What is the most likely scenario that will occur as a result of damage to the roots?

Accepted Answer

A)   The slimy sheath on the root cap has been wiped off and the parenchyma cells were damaged resulting in damage to the zone of cell division.
B)   The slimy sheath on the root cap has been wiped off and the parenchyma cells were damaged resulting in damage to the zone of elongation.
C)   The slimy sheath on the root cap has been wiped off and the parenchyma cells were damaged resulting in damage to the zone of maturation.
D)   The slimy sheath on the root cap has been wiped off and the epidermal cells were damaged resulting in damage to the zone of cell division.
E)   The slimy sheath on the root cap has been wiped off and the epidermal cells were damaged resulting in damage to the zone of maturation.F) A) and B)
G) C) and E)

Question 3

The tissue layers of a leaf,from the upper surface to the lower surface,are

Accepted Answer

A)   epidermis, cuticle, mesophyll layer, epidermis.
B)   cuticle, epidermis, spongy mesophyll, palisade mesophyll, epidermis, cuticle.
C)   epidermis, palisade layer, spongy layer, epidermis.
D)   cuticle, epidermis, palisade mesophyll, spongy mesophyll, epidermis, cuticle.
E)   epidermis, cuticle, palisade mesophyll, spongy mesophyll, cuticle, epidermis.F) A) and C)
G) None of the above

Question 4

The iris is a plant with long,sword-like leaves.Its flowers have six petals that form a tongue and "flags." When you cut through the stem to cut flowers for a bouquet arrangement,the many vascular bundles form tough "strings" throughout the stem.From this description,it is obvious that the iris is a

Accepted Answer

A)   woody plant.
B)   combination of monocot and eudicot traits.
C)   monocotyledon.
D)   eudicotyledon.
E)   primitive plant that has not yet evolved to have either monocot or eudicot features.F) All of the above
G) None of the above

Question 5

Root hairs are found in which area of the root?

Accepted Answer

A)   zone of maturation
B)   zone of elongation
C)   zone of cell division
D)   apical meristem
E)   root capF) A) and E)
G) A) and B)

Question 6

In roots,which structure increases surface area for the absorption of water and minerals from the soil?

Accepted Answer

A)   root hairs
B)   root cap
C)   Casparian strip
D)   vascular cylinder
E)   zone of elongationF) A) and C)
G) A) and E)

Question 7

When a plant grows upward,the distance between the internodes increases in length.

Accepted Answer

A) True 
 B)False

Question 8

The cells that make up xylem are no longer living.

Accepted Answer

A) True 
 B)False

Question 9

The meristematic tissue used for secondary growth that is found between the xylem and phloem of each vascular bundle in eudicot stems is termed the

Accepted Answer

A)   apical meristem.
B)   root meristem.
C)   cork cambium.
D)   vascular cambium.
E)   pericycle.F) A) and C)
G) B) and D)

Question 10

Considering that leaf stomata have the conflicting functions of allowing gaseous carbon dioxide into the leaf,yet preserving the plant's supply of water,which of the following is NOT reasonable?

Accepted Answer

A)   Tree leaves that orient flat and present the top side to the sun would have most of their stomata on the bottom of the leaf.
B)   A submerged-water plant would have no stomata.
C)   Corn, oats, rice, and wheat (all monocots)  have relatively upright blades with sunlight hitting both sides and would have stomata distributed fairly evenly on both sides.
D)   Leaves of plants in dry areas will have more stomata than leaves of plants in humid areas.
E)   Plants in arid environments open their stomata at night when temperatures are cooler and evaporation occurs less.F) A) and C)
G) A) and D)

Question 11

Trees are often identified by their leaves.What information about the leaves would you need to observe in order to identify the tree?

Accepted Answer

A)   function of the leaves
B)   whether the leaves are lost in the fall
C)   blades, pattern of venation, and arrangement on stem
D)   size and color
E)   whether the veins are parallel or nettedF) B) and E)
G) A) and E)

Question 12

Which of the following is not one of the zones found in a growing root?

Accepted Answer

A)   epidermis
B)   elongation
C)   cell division
D)   maturation
E)   none of these are zones found in growing rootsF) C) and D)
G) A) and E)

Question 13

The stalk that attaches a leaf blade to a stem is a/an

Accepted Answer

A)   bud scale.
B)   axillary bud.
C)   node.
D)   internode.
E)   petiole.F) B) and E)
G) A) and E)

Question 14

A stem is identified by being aboveground and green.

Accepted Answer

A) True 
 B)False

Question 15

Girdling a tree involves cutting a deep groove all the way around a tree trunk; it would have the effect of

Accepted Answer

A)   triggering additional auxin production and increasing leaf growth.
B)   increasing the input of carbon dioxide and increasing photosynthesis.
C)   interrupting the flow of minerals and stunting the growth of the tree.
D)   interrupting the passage of phloem sap and killing the tree.
E)   interrupting the passage of water and killing the tree.F) All of the above
G) B) and D)

Question 16

Primary growth of a stem is due to the activity of the vascular meristem.

Accepted Answer

A) True 
 B)False

Question 17

Stomata

Accepted Answer

A)   are usually found in the upper epidermis of a leaf.
B)   are surrounded by four guard cells.
C)   function for primary growth.
D)   function in secondary growth.
E)   allow gas exchange.F) A) and E)
G) A) and B)

Question 18

Which of these associations is incorrect?

Accepted Answer

A)   epidermal cell--protection
B)   stomata--gas exchange
C)   sclerenchyma cells--cell division
D)   sieve-tube members--sugar transport
E)   xylem cells--water transportF) A) and B)
G) B) and C)

Question 19

What organic substance makes the walls of sclerenchyma cells tough and hard?

Accepted Answer

A)   suberin
B)   stomata
C)   trichomes
D)   cuticle
E)   ligninF) A) and B)
G) B) and E)

Question 20

For water transport to occur there must be

Accepted Answer

A)   palisade and spongy mesophyll.
B)   sugar in the phloem.
C)   atmospheric pressure available to do the work.
D)   low pressure in the roots and high pressure in the leaves.
E)   a continuous column of water in xylem and transpiration of water at the leaves.F) B) and D)
G) A) and E)

Exam 9: Plant Organization

The cells that make up xylem are no longer living.

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Explain the structural differences that help a botanist differentiate between a monocot and a eudicot.

Correct AnswerverifiedMonocots have the following structural f...View AnswerShow Answer

Primary growth of a stem is due to the activity of the vascular meristem.

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Trees are often identified by their leaves.What information about the leaves would you need to observe in order to identify the tree?

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The meristematic tissue used for secondary growth that is found between the xylem and phloem of each vascular bundle in eudicot stems is termed the

Correct AnswerverifiedShow Answer

Considering that leaf stomata have the conflicting functions of allowing gaseous carbon dioxide into the leaf,yet preserving the plant's supply of water,which of the following is NOT reasonable?

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The stalk that attaches a leaf blade to a stem is a/an

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For water transport to occur there must be

Correct AnswerverifiedShow Answer

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What organic substance makes the walls of sclerenchyma cells tough and hard?

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A stem is identified by being aboveground and green.

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Which of these associations is incorrect?

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Which of the following is not one of the zones found in a growing root?

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Girdling a tree involves cutting a deep groove all the way around a tree trunk; it would have the effect of

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In roots,which structure increases surface area for the absorption of water and minerals from the soil?

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When a plant grows upward,the distance between the internodes increases in length.

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Stomata

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The tissue layers of a leaf,from the upper surface to the lower surface,are

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Root hairs are found in which area of the root?

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While transplanting flowers you accidentally damaged the roots.What is the most likely scenario that will occur as a result of damage to the roots?

Correct AnswerverifiedShow Answer

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Monocots have the following structural f...
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