BIO 1108 CHAPTER 29 EXAM QUESTIONS
AND ANSWERS A+ GRADED
The production and elongation of cells at the shoot tip lead to an increase in
shoot length.
true
The condition in which shoot apical meristems suppress the growth of axillary
buds is called:
apical dominance.
An increase in a plant's diameter resulting from the addition of new xylem and
phloem is called:
secondary growth.
The fossil record indicates that the first vascular plants possessed roots.
false
Plants grow taller and branch less when light levels are low.
true
Plants use day length as a cue to make preparations for winter, such as
increasing the size of roots and other storage organs.
true
Flowers may develop from a(n):
apical meristem and axillary bud.
Which of the statements describes the hypothesis proposed to explain the
regular arrangement of leaves around the stem?
New primordia initiate where auxin accumulates, while existing primordia efficiently
drain auxin from the meristem surface. This ensures that new primordia form in the
location farthest from existing primordia.
Which of the statements regarding xylem vessels in angiosperm trees is false?
Vessels are rigid and strong and do not require additional support cells.
Which of these plants has a root system specialized for the storage of nutrients?
cassava
Phytochrome prevents seeds of some plants from germinating when they are in
deep shade by the:
absorption of far-red wavelengths by Pfr.
Vernalization can result in the remodeling of chromatin in some species, which
means that:
plants may grow new cells, and those cells will "know" if they have experienced winter.
plants may grow new cells, and those cells will not "know" if they have experienced
winter.
Answers A and D are correct.
Plant growth that elongates stems occurs in the:
shoot apical meristem.
The development of axillary buds is under the control of a single hormone,
cytokinin.
false
AND ANSWERS A+ GRADED
The production and elongation of cells at the shoot tip lead to an increase in
shoot length.
true
The condition in which shoot apical meristems suppress the growth of axillary
buds is called:
apical dominance.
An increase in a plant's diameter resulting from the addition of new xylem and
phloem is called:
secondary growth.
The fossil record indicates that the first vascular plants possessed roots.
false
Plants grow taller and branch less when light levels are low.
true
Plants use day length as a cue to make preparations for winter, such as
increasing the size of roots and other storage organs.
true
Flowers may develop from a(n):
apical meristem and axillary bud.
Which of the statements describes the hypothesis proposed to explain the
regular arrangement of leaves around the stem?
New primordia initiate where auxin accumulates, while existing primordia efficiently
drain auxin from the meristem surface. This ensures that new primordia form in the
location farthest from existing primordia.
Which of the statements regarding xylem vessels in angiosperm trees is false?
Vessels are rigid and strong and do not require additional support cells.
Which of these plants has a root system specialized for the storage of nutrients?
cassava
Phytochrome prevents seeds of some plants from germinating when they are in
deep shade by the:
absorption of far-red wavelengths by Pfr.
Vernalization can result in the remodeling of chromatin in some species, which
means that:
plants may grow new cells, and those cells will "know" if they have experienced winter.
plants may grow new cells, and those cells will not "know" if they have experienced
winter.
Answers A and D are correct.
Plant growth that elongates stems occurs in the:
shoot apical meristem.
The development of axillary buds is under the control of a single hormone,
cytokinin.
false
