Question 1

What is the function of the Casparian strip in the root?

Accepted Answer

A)  It protects the surface of the root but allows water to be absorbed.
B)  It allows for horizontal transport of water and nutrients.
C)  It is the portion of the root that contains numerous root hairs.
D)  It is an internal water-proofed layer that prevents water and minerals from moving through intercellular spaces on their way to the vascular tissue.
E)  It seals the surface of roots that have been damaged.F) A) and D)
G) A) and E)

Question 2

You are eating a stalk of celery.As you bite into the celery,you notice strings hanging down from the end.These strings are

Accepted Answer

A)  parenchyma tissue.
B)  phloem tissue.
C)  sclerenchyma tissue.
D)  collenchyma tissue.
E)  xylem tissuE.F) A) and B)
G) A) and C)

Question 3

Which statement concerning root hairs is not correct?

Accepted Answer

A)  Root hairs are tubular extensions of individual epidermal cells.
B)  A root hair is isolated from its epidermal cell with a cross wall.
C)  Root hairs generally live only a few days before being sloughed off.
D)  Root hairs increase the absorption of water and minerals.
E)  Root hairs are located in the zone of maturation of a root.F) A) and B)
G) A) and C)

Question 4

Which of the following is not true about meristems?

Accepted Answer

A)  They can be apical or lateral.
B)  Meristematic cells divide into two cells,one of which remains a meristem cell and another that becomes a plant body cell.
C)  Apical meristems give rise to three types of embryonic tissues.
D)  Meristematic cells fuse with other cells.
E)  They are responsible for primary and secondary growth.F) A) and B)
G) C) and D)

Question 5

Which of these might produce the longest cells?

Accepted Answer

A)  tracheids
B)  sieve cells
C)  vessel members
D)  sclerenchyma
E)  root hairsF) D) and E)
G) A) and B)

Question 6

______________ consist(s) of elongated supporting cells with unevenly thickened cells walls,usually located in strands beneath the epidermis.

Accepted Answer

A)  Collenchyma
B)  Parenchyma
C)  Sclerenchyma
D)  Sieve elements
E)  Tracheary elementsF) C) and D)
G) B) and C)

Question 7

In certain plants,some of the roots may be modified to carry out unusual functions.Which of these is not an example of one of these special functions?

Accepted Answer

A)  help absorb oxygen
B)  store food or water
C)  carry out photosynthesis
D)  parasitize other plants
E)  discourage herbivoresF) D) and E)
G) C) and D)

Question 8

Which cells are characterized by thin cell walls,the largest vacuoles,and the least specialization?

Accepted Answer

A)  epidermis
B)  collenchyma
C)  sclerenchyma
D)  parenchyma
E)  meristemF) B) and C)
G) C) and D)

Question 9

Xylem tissue may contain each of these cell types except

Accepted Answer

A)  vessel members.
B)  tracheids.
C)  sieve cells.
D)  fibers.
E)  rays.F) All of the above
G) B) and E)

Question 10

A birdhouse is nailed into a tree 6 feet up from the ground.If the tree grows about 2 feet taller each year,where will the birdhouse be 25 years later?

Accepted Answer

A)  50 feet
B)  56 feet
C)  26 feet
D)  6 feet
E)  4 feetF) A) and D)
G) C) and E)

Question 11

Plant cells that give rise to two cells,one of which is free to differentiate into various kinds of cells that contribute to the plant body,are called

Accepted Answer

A)  endodermal cells.
B)  primary cells.
C)  lateral cells.
D)  parenchyma cells.
E)  meristematic cells.F) B) and E)
G) C) and E)

Question 12

The waterproof cuticle covering the epidermis of land plants helps prevent dehydration,much like the skin of some land animals.As a consequence,what other evolutionary adaptation was important for most land plants?

Accepted Answer

A)  the endodermis in the root
B)  root hairs on the root epidermis
C)  collenchyma fibers just beneath the surface of the epidermis
D)  stomates in the leaves
E)  trichomes on leaf surfacesF) A) and B)
G) B) and C)

Question 13

Linen is woven from strands of sclerenchyma _______ that occur in the phloem of flax (Linum spp. ) .

Accepted Answer

A)  tracheid
B)  sieve
C)  sclerid
D)  collenchyma
E)  fiberF) D) and E)
G) A) and D)

Question 14

Primary growth at the apical meristems can produce cells that differentiate into each of these cell types except

Accepted Answer

A)  leaves.
B)  ground tissue.
C)  procambium.
D)  cork cambium.
E)  epidermis.F) None of the above
G) B) and D)

Question 15

What is a distinctive characteristic of monocot stems compared to dicot ones?

Accepted Answer

A)  The ground tissue is arranged in concentric rings.
B)  The vascular cambium is divided into segments.
C)  The vascular bundles are scattered throughout the ground tissue.
D)  The xylem and phloem are located in separate vascular bundles.
E)  The epidermis surrounds the ground tissuE.F) B) and C)
G) B) and D)

Question 16

Compound leaves

Accepted Answer

A)  have two or more petioles per blade.
B)  have a blade divided into leaflets.
C)  are toothed at the edges.
D)  are alternately arrangeD.
E)  have palmate venation.F) A) and B)
G) A) and C)

Question 17

How could you distinguish between a root hair versus a very small root?

Accepted Answer

A)  Root hairs are white,roots are brown.
B)  Root hairs are single cells,roots are multicellular.
C)  Root hairs only absorb water,not nutrients like roots.
D)  Root hairs do not have a cuticle.
E)  The epidermis of a root hair is thinner than the epidermis of a root.F) B) and E)
G) None of the above

Question 18

Choose the letter of the best match from the following:
-Produces parenchyma,collenchyma,and sclerenchyma cells.

Accepted Answer

A)  protoderm
B)  vascular cambium
C)  apical meristem
D)  procambium
E)  ground meristemF) A) and C)
G) A) and E)

Question 19

Various modifications in leaves can make plants better adapted to their habitats.Which of the following is not an evolutionary modification of leaves?

Accepted Answer

A)  floral leaves
B)  fruit-bearing leaves
C)  spines
D)  reproductive leaves
E)  insectivorous leavesF) A) and D)
G) C) and E)

Question 20

Choose the letter of the best match from the following:
-Ultimate source of all cells that contribute to growth in length of stem or root.

Accepted Answer

A)  protoderm
B)  vascular cambium
C)  apical meristem
D)  procambium
E)  ground meristemF) A) and E)
G) C) and E)

Exam 36: Plant Form

Primary growth at the apical meristems can produce cells that differentiate into each of these cell types except

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Xylem tissue may contain each of these cell types except

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How could you distinguish between a root hair versus a very small root?

Correct AnswerverifiedShow Answer

A birdhouse is nailed into a tree 6 feet up from the ground.If the tree grows about 2 feet taller each year,where will the birdhouse be 25 years later?

Correct AnswerverifiedShow Answer

In certain plants,some of the roots may be modified to carry out unusual functions.Which of these is not an example of one of these special functions?

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Which statement concerning root hairs is not correct?

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Compound leaves

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The waterproof cuticle covering the epidermis of land plants helps prevent dehydration,much like the skin of some land animals.As a consequence,what other evolutionary adaptation was important for most land plants?

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Which of the following is not true about meristems?

Correct AnswerverifiedShow Answer

Choose the letter of the best match from the following: -Ultimate source of all cells that contribute to growth in length of stem or root.

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Linen is woven from strands of sclerenchyma _______ that occur in the phloem of flax (Linum spp. ) .

Correct AnswerverifiedShow Answer

Plant cells that give rise to two cells,one of which is free to differentiate into various kinds of cells that contribute to the plant body,are called

Correct AnswerverifiedShow Answer

______________ consist(s) of elongated supporting cells with unevenly thickened cells walls,usually located in strands beneath the epidermis.

Correct AnswerverifiedShow Answer

Which of these might produce the longest cells?

Correct AnswerverifiedShow Answer

Various modifications in leaves can make plants better adapted to their habitats.Which of the following is not an evolutionary modification of leaves?

Correct AnswerverifiedShow Answer

Choose the letter of the best match from the following: -Produces parenchyma,collenchyma,and sclerenchyma cells.

Correct AnswerverifiedShow Answer

You are eating a stalk of celery.As you bite into the celery,you notice strings hanging down from the end.These strings are

Correct AnswerverifiedShow Answer

Which cells are characterized by thin cell walls,the largest vacuoles,and the least specialization?

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What is the function of the Casparian strip in the root?

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What is a distinctive characteristic of monocot stems compared to dicot ones?

Correct AnswerverifiedShow Answer

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