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Biology, 6/e
Author Dr. George B. Johnson, Washington University
Author Dr. Peter H. Raven, Missouri Botanical Gardens & Washington University
Contributor Dr. Susan Singer, Carleton College
Contributor Dr. Jonathan Losos, Washington University

Plant Body

Multiple Choice Quiz

Please answer all questions



1

The elongation of root and stem forms what is known as the
A)initial plant
B)protoplant
C)primary plant body
D)secondary growth
2

Internode elongation in corn results from the growth of
A)intercalary meristem
B)protoderm
C)procambium
D)cork cambium
3

Which of the following is not a kind of epidermal cell?
A)trichome
B)root hair
C)guard cell
D)cork
4

Unlike the flow through vessels, water conducted by tracheids must flow through
A)pits
B)pores
C)sieve plates
D)tubes only
5

The primary walls of the endodermis are impregnated with
A)lignin
B)wax
C)proteins
D)suberin
6

Fleshy fruits that are brightly colored are often dispersed by
A)insects
B)water
C)mammals
D)birds
E)wind
7

Which one of the following is not a drupe?
A)a peach
B)an apple
C)an olive
D)a plum
E)a cherry
8

Fruits derived from a single flower with more than one ovary are
A)true berries
B)aggregate fruits
C)drupes
D)multiple fruits
E)hesperidiums
9

Which of the following is not a basic plant type?
A)pith
B)ground tissue
C)epidermis
D)vascular tissue
E)meristems
10

Epiphytic orchid roots are a form of _______________ root.
A)aerial
B)adventitious
C)buttress
D)parasitic
E)food storage
11

The Irish potato is a
A)bulb
B)tuber
C)corm
D)rhizome
E)stolon
12

Which of the following is not a modified stem or branch?
A)tendrils
B)thorns
C)bracts
D)tubers
E)corms
13

Which of the following is not a part of the outer protective layer of mature roots?
A)cork cambium
B)phelloderm
C)periderm
D)cork
E)epidermis
14

The embryonic protoderm is an example of
A)procambium
B)vascular cambium
C)primary meristem
D)lateral meristem
E)ground meristem
15

The form of conducting element found almost exclusively in angiosperms is
A)sieve cell
B)vessel
C)tracheid
D)sieve tube
E)rays
16

Wood consists of accumulated
A)primary xylem
B)phloem
C)schlerenchyma
D)secondary xylem
E)secondary phloem
17

The apical meristem gives rise to all of the following except
A)protoderm
B)vascular cambium
C)procambium
D)ground meristem
E)primary meristem
18

Primary vascular tissues are produced by the
A)protoderm
B)ground meristem
C)intercalary meristems
D)procambium
E)lateral meristems
19

Cactus stems may be modified into photosynthetic
A)spines
B)cladophylls
C)tendrils
D)stolons
E)rhizomes
20

The onion is an example of a
A)tuber
B)rhizome
C)corm
D)bulb
E)stolon
21

The outward cell division of the root apical meristem produces the
A)root hairs
B)xylem
C)branch roots
D)root cap
E)pith parenchyma
22

The gritty texture of pears is caused by
A)sclereids
B)collenchyma
C)tracheids
D)parenchyma
E)pits
23

Which of the following isn't a form of modified leaf?
A)bract
B)spine
C)window leaf
D)prickle
E)thorn
24

Mature sclerenchyma cells are
A)suberized and contain no living protoplasts
B)thin walled and often contain chloroplasts
C)lignified and contain living protoplasts
D)suberized and contain living protoplasts
E)lignified and contain no living protoplast
25

Venation of monocot leaves would best be described as
A)palmate
B)alternate
C)parallel
D)pinnate
E)whorled
26

The outermost layer of the stele of a root is the
A)cortex
B)endodermis
C)pericycle
D)pith
E)Casparian strip
27

Primary growth in plants is initiated by the
A)apical meristems
B)vascular cambium
C)lateral meristems
D)ground tissue
E)dermal tissue
28

Gas exchange through the bark occurs through
A)stomata
B)pits
C)lenticles
D)spiracles
E)micropyles
29

What do fibers, collenchyma, sclerenchyma, and xylem have in common?
A)They are all components of plant connective tissues.
B)They all function in support of the plant.
C)They are all dead at maturity.
D)a, b, and c.
E)a and b, but not c.
30

The conducting elements of the phloem are part of the tracheids.
A)True
B)False
31

Water is easily moved through living organisms because most cells have water pumps.
A)True
B)False
32

An important function of plant parenchyma is to form a thick, hydrophobic layer on the surfaces of stems and leaves which acts as an effective barrier to evaporation.
A)True
B)False
33

Which of the following meristems is mismatched with the structure/tissue produced?
A)cork cambium -- periderm
B)ground meristem -- cortex and pith of a dicot stem
C)procambium -- primary vascular tissue
D)protoderm -- vascular tissue of a monocot stem
E)vascular cambium -- xylem and phloem of an older tree
34

Which of the following statements about phloem tissue is correct?
A)Phloem tissue distributes water and minerals absorbed by the roots to the rest of the plant.
B)The sieve elements of angiosperms are sieve tube members, while the sieve elements of gymnosperms are sieve cells.
C)Primary and secondary phloem is derived from the vascular cambium.
D)Phloem may be primary or secondary, but in either case the sieve elements are nonliving cells.
E)Only a and d are correct.
35

You are most likely to find root hairs in which of the following areas of the root?
A)root cap
B)zone of cell maturation
C)zone of cell elongation
D)zone of cell division
36

A plant with a fibrous root system and leaves with parallel venation would also have:
A)a vascular cambium.
B)secondary xylem and phloem.
C)a cork cambium.
D)all of the above.
E)none of the above.
37

Lateral roots of a young oak tree originate from the pericycle of the taproot.
A)True
B)False
38

Tracheids and vessel elements of the primary plant body originate from the protoderm.
A)True
B)False
39

Parenchyma typically lack a secondary wall and often function as storage depots.
A)True
B)False
40

Tracheids and vessels are found in the xylem of all seed plants.
A)True
B)False
41

In primary roots, phloem is located in the center of the vascular cylinder.
A)True
B)False