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Which statement is NOT true about vascular tissue in plants?


A) In leaves,the vascular tissue is found in the leaf veins.
B) In stems,the vascular tissue is found in the vascular bundles.
C) Phloem cells are hollow and nonliving,and they form a continuous pipeline that transports sugars.
D) Xylem cells are hollow and nonliving,and they form a continuous pipeline that transports water and minerals.
E) In roots,the vascular tissue is found in the central vascular cylinder.

F) All of the above
G) A) and E)

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All of the following are taproots that are consumed as vegetables EXCEPT


A) carrots.
B) celery.
C) turnips.
D) radishes.
E) beets.

F) A) and B)
G) A) and E)

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If this structure were nibbled off by browsing deer it would decrease the potential for an increase in height of the plant.


A) The axillary bud.
B) The bark.
C) The terminal bud.
D) The leaf scar.
E) The stem.

F) A) and B)
G) A) and C)

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Which of the following features are necessary to classify a plant as a monocot?


A) The plant will contain one cotyledon,have parallel veins in the leaves and the flowers will be in multiples of threes.
B) The plant will contain two cotyledons,have parallel veins in the leaves and the flowers will be in multiples of threes.
C) The plant will contain one cotyledon,have a netted vein pattern in the leaves and the flowers will be in multiples of threes.
D) The plant will contain one cotyledon,have parallel veins in the leaves and the flowers will be in multiples of fours or fives.
E) The plant will contain one cotyledon,have vascular bundles in a distinct ring and the flowers will be in multiples of threes.

F) A) and B)
G) None of the above

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Consider the possibility that we discover a gene that regulates both the amount of root hairs and where root hairs grow on a root tip.Since the surface area provided by root hairs is so critical to their uptake of water and nutrients,expanding their growth area seems a great advantage.However,which of these might be a problem?


A) Growth of root hairs in the zone of cell division would interfere with root cell proliferation.
B) Growth of root hairs in the root cap would cause them to be shredded off since this area takes substantial abrasion.
C) Growth of root hairs in the zone of elongation would cause them to be shredded off as they anchored in soil and the root lengthened.
D) All of these choices pose a problem.

E) B) and C)
F) A) and D)

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D

We are very familiar with two things found in large woody plants,wood and bark.The wood is essentially made of ________ and the bark is essentially made of ________.


A) xylem; phloem and cork
B) vascular tissue; epidermal tissue
C) the cortex; the epidermis
D) pith; collenchyma

E) A) and B)
F) A) and C)

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A

Which of the following statements is NOT correct about the arrangement of tissues in the eudicot root?


A) The specialized root tissues are seen at the zone of maturation.
B) The epidermis of the root has no cuticle on its outer surface,unlike other epidermal tissues.
C) The pericycle is the outer layer of cells in the vascular cylinder,with the ability to form secondary or branch roots.
D) The star-shaped phloem is located in the center of the vascular cylinder,with xylem arranged between the arms of phloem.
E) The Casparian strip is a waxy lining on four sides of the cells of the endodermis,which forces water into the endodermal cells.

F) A) and D)
G) A) and E)

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Vascular tissue extends through the roots,stems,and leaves of the entire plant.

A) True
B) False

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True

All of the following are specialized epidermal cells except


A) root hairs.
B) trichomes.
C) collenchyma.
D) guard cells.

E) None of the above
F) B) and D)

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Farmers have been able to genetically engineer a wide variety of crops that possess an enormous diversity of traits.If a farmer wanted to increase the ability of his crops to access ground water that is several meters below ground which type of root system would he want?


A) taproot
B) prop roots
C) fibrous roots
D) pneumatophores
E) aerial roots

F) B) and E)
G) D) and E)

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Which statement about leaves is NOT correct?


A) The epidermis is covered by a waxy layer of cuticle that reduces water loss.
B) Gas exchange occurs through tiny openings in the leaf surface called stomates.
C) Regulation of gas exchange through the leaf is the responsibility of the guard cells.
D) Vascular tissue is arranged in a net pattern in dicots and a parallel pattern in monocots.
E) In eudicots,the photosynthetic mesophyll is made up of an upper spongy layer and a lower palisade layer.

F) A) and B)
G) B) and E)

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Which of the meristems and tissues is (are) mismatched?


A) protoderm - vascular tissue
B) ground meristem - ground tissue
C) procambrium - epidermal tissue
D) None of these are mismatched.
E) protoderm - vascular tissue and procambrium - epidermal tissue are mismatched.

F) A) and C)
G) B) and C)

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An insect destroying the ________ layer of tissues in a leaf would lead to a decrease in the ability of gas exchange within the leaf.


A) spongy mesophyll
B) palisade mesophyll
C) xylem
D) epidermis
E) cuticle

F) A) and C)
G) All of the above

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Monocot roots have centrally located ground tissue called pith,surrounded by a ring of xylem and phloem bundles.

A) True
B) False

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Which of these plant tissue types is composed of cells with primary walls thickened at the corners that provide support for immature parts of the cell body?


A) xylem
B) phloem
C) collenchyma
D) sclerenchyma
E) parenchyma

F) B) and D)
G) B) and C)

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Lenticels are small openings on the underside of eudicot leaves where gaseous exchange occurs.

A) True
B) False

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Identify this plant as a monocot or eudicot after examining its stem and leaf. Identify this plant as a monocot or eudicot after examining its stem and leaf.   A) This plant is a monocot. B) This plant is a dicot. C) Not enough information is provided to differentiate the plant as a monocot or dicot.


A) This plant is a monocot.
B) This plant is a dicot.
C) Not enough information is provided to differentiate the plant as a monocot or dicot.

D) B) and C)
E) All of the above

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Which of the following tissue types are found only in the zone of cell division of the root tip?


A) xylem & phloem
B) endodermis
C) ground meristem
D) None of these are restricted to just the zone of cell division of the root tip.
E) All of these are restricted to the zone of cell division of the root tip.

F) A) and B)
G) C) and D)

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A fifteen-foot tree growing in a fence row is used as a fence post,to which barbed wire is stapled at a height of five feet.Years later,the tree is thirty feet high.The fence is


A) twenty feet up because it added fifteen feet to the original five-foot height.
B) split because the trunk grew up but the bottom stayed at ground level.
C) fifteen feet up because the tree doubled in height.
D) twenty feet up,still ten feet from the top of the tree.
E) approximately five feet up since a tree grows longer at the tips of its stem,branches and roots.

F) B) and C)
G) A) and E)

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The root endodermis


A) forms a boundary between the cortex and inner vascular cylinder of the root.
B) contains impermeable lignin and suberin called a Casparian strip that controls water and nutrient movement between adjacent cell walls.
C) is two to three layers of spherical cells.
D) All of the choices are true of root endodermis.
E) forms a boundary between the cortex and inner vascular cylinder of the root and contains impermeable lignin and suberin called a Casparian strip that controls water and nutrient movement between adjacent cell walls is correct.

F) A) and C)
G) D) and E)

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