Name: 
 

Chapter 35



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Which part of a plant absorbs most of the water and minerals taken up from the soil?
a.
taproots
b.
root hairs
c.
the thick parts of the roots near the base of the stem
d.
storage roots
e.
sections of the root that have secondary xylem
 

 2. 

A person working with plants may remove apical dominance by doing which of the following?
a.
pruning
b.
deep watering of the roots
c.
fertilizing
d.
transplanting
e.
feeding the plants nutrients
 

 3. 

Land plants are composed of all the following tissue types except
a.
mesodermal.
b.
epidermal.
c.
meristematic.
d.
vascular.
e.
ground tissue.
 

 4. 

Which functional plant cells lack a nucleus?
a.
xylem only
b.
sieve cells only
c.
companion cells only
d.
both companion and parenchyma cells
e.
both xylem and sieve-tube cells
 

 5. 

The vascular bundle in the shape of a single central cylinder in a root is called the
a.
cortex.
b.
stele.
c.
endodermis.
d.
periderm.
e.
pith.
 

 6. 

The photosynthetic cells in the interior of a leaf are what kind of cells?
a.
parenchyma
b.
collenchyma
c.
sclerenchyma
d.
phloem
e.
endodermis
 

 7. 

The driving force that pushes the root tip through the soil is due primarily to
a.
continuous cell division in the root cap at the tip of the root.
b.
continuous cell division just behind the root cap in the center of the apical meristem.
c.
elongation of cells behind the root apical meristem.
d.
A and B only.
e.
A, B, and C.
 
 
The following question is based on parts of a growing primary root.
I.
root cap
II.
zone of elongation
III.
zone of cell division
IV.
zone of cell maturation
V.
apical meristem
 

 8. 

Which of the following is the correct sequence from the growing tips of the root upward?
a.
I, II, V, III, IV
b.
III, V, I, II, IV
c.
II, IV, I, V, III
d.
IV, II, III, I, V
e.
I, V, III, II, IV
 

 9. 

Pores on the leaf surface that function in gas exchange are called
a.
hairs.
b.
xylem cells.
c.
phloem cells.
d.
stomata.
e.
sclereids.
 

 10. 

The vascular system of a three-year-old eudicot stem consists of
a.
3 rings of xylem and 3 of phloem.
b.
2 rings of xylem and 2 of phloem.
c.
2 rings of xylem and 1 of phloem.
d.
2 rings of xylem and 3 of phloem.
e.
3 rings of xylem and 1 of phloem.
 

 11. 

Additional vascular tissue produced as secondary growth in a root originates from which cells?
a.
vascular cambium
b.
apical meristem
c.
endodermis
d.
phloem
e.
xylem
 

 12. 

Suppose a feeding insect destroys only the very central portion of a developing flower bud. Which of the following statements is most likely to be true?
a.
None of the A, B, or C floral organ identifying genes will "turn on" as floral development proceeds.
b.
Petals formed subsequent to the insect attack will be disfigured.
c.
Stamens formed subsequent to the insect attack will be sterile.
d.
Carpels will not form in the developing flower.
e.
Only the A floral organ identifying gene will be affected.
 



 
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