EXAM 4 BIOL425 QUESTIONS WITH
COMPLETE ANSWERS
In maize (Zea mays), the first structure to emerge from the seed during germination
is the:
a. epicotyl
b. hypocotyl
c. coleorhiza
d. coleoptile
e. radicle - Answer-coleorhiza
The three tissue systems of vascular plants are:
a. the dermal, vascular, and ground tissue systems.
b. epidermis, periderm, and protoderm.
c. parenchyma, collenchyma, and sclerenchyma.
d. protoderm, procambium, and ground meristem.
e. xylem, phloem, and epidermis. - Answer-the dermal, vascular, and ground tissue
systems.
t/f Before a seed can germinate, it must first imbibe water. - Answer-t
Which of the following statements about primary growth is FALSE?
a. It involves the formation of primary tissues.
b. It gives rise to the primary plant body.
c. It results in the thickening of the stem and root.
d. It results in extension of the plant body.
e. It results from activity of the root and shoot apical meristems. - Answer-It results in
the thickening of the stem and root.
In the pea (Pisum sativum), the _______ forms the hook that pushes to the soil
surface during seed germination. - Answer-epicotyl
,The sequence of regions in a growing root, beginning immediately behind the
rootcap, is:
a. maturation, elongation, cell division.
b. cell division, maturation, elongation.
c. elongation, maturation, cell division.
d. elongation, cell division, maturation.
e. cell division, elongation, maturation. - Answer-cell division, elongation, maturation.
The shoot apical meristem arises between the two ________ in eudicot embryos. -
Answer-cotyledons
t/f The coleoptile and coleorhiza are typically found in monocots and eudicots. -
Answer-f
Protophloem and protoxylem mature in the:
a. area between the regions of cell division and elongation.
b. region of maturation.
c. region of elongation.
d. region of cell division.
e. quiescent center. - Answer-region of elongation.
A sessile leaf, by definition, lacks a - Answer-petiole
In roots, the vascular cambium arises from the:
a. procambium only.
b. pericycle only.
c. endodermis only.
d. procambium, endodermis, and pericycle.
e. procambium and pericycle only. - Answer-procambium and pericycle only.
The integuments develop into the:
a. endosperm.
b. coleoptile.
, c. seed coat.
d. funiculus.
e. hilum. - Answer-seed coat.
Which of the following is NOT part of a phytomere?
a. axillary bud
b. leaf
c. internode
d. node
e. apical meristem - Answer-apical meristem
The cotyledons elongate most dramatically and may become curved during the
_______ stage.
a. heart
b. proembyro
c. suspensor
d. globular
e. torpedo - Answer-torpedo
A plant with helical phyllotaxy has:
a. a decussate leaf arrangement.
b. opposite leaves.
c. three or more leaves per node.
d. one leaf per node, arranged spirally.
e. one leaf per node, arranged in two opposite ranks. - Answer-one leaf per node,
arranged spirally.
In temperate regions of the world, after-ripening of the seed (e.g., acorns) is
triggered by:
a. low oxygen levels.
COMPLETE ANSWERS
In maize (Zea mays), the first structure to emerge from the seed during germination
is the:
a. epicotyl
b. hypocotyl
c. coleorhiza
d. coleoptile
e. radicle - Answer-coleorhiza
The three tissue systems of vascular plants are:
a. the dermal, vascular, and ground tissue systems.
b. epidermis, periderm, and protoderm.
c. parenchyma, collenchyma, and sclerenchyma.
d. protoderm, procambium, and ground meristem.
e. xylem, phloem, and epidermis. - Answer-the dermal, vascular, and ground tissue
systems.
t/f Before a seed can germinate, it must first imbibe water. - Answer-t
Which of the following statements about primary growth is FALSE?
a. It involves the formation of primary tissues.
b. It gives rise to the primary plant body.
c. It results in the thickening of the stem and root.
d. It results in extension of the plant body.
e. It results from activity of the root and shoot apical meristems. - Answer-It results in
the thickening of the stem and root.
In the pea (Pisum sativum), the _______ forms the hook that pushes to the soil
surface during seed germination. - Answer-epicotyl
,The sequence of regions in a growing root, beginning immediately behind the
rootcap, is:
a. maturation, elongation, cell division.
b. cell division, maturation, elongation.
c. elongation, maturation, cell division.
d. elongation, cell division, maturation.
e. cell division, elongation, maturation. - Answer-cell division, elongation, maturation.
The shoot apical meristem arises between the two ________ in eudicot embryos. -
Answer-cotyledons
t/f The coleoptile and coleorhiza are typically found in monocots and eudicots. -
Answer-f
Protophloem and protoxylem mature in the:
a. area between the regions of cell division and elongation.
b. region of maturation.
c. region of elongation.
d. region of cell division.
e. quiescent center. - Answer-region of elongation.
A sessile leaf, by definition, lacks a - Answer-petiole
In roots, the vascular cambium arises from the:
a. procambium only.
b. pericycle only.
c. endodermis only.
d. procambium, endodermis, and pericycle.
e. procambium and pericycle only. - Answer-procambium and pericycle only.
The integuments develop into the:
a. endosperm.
b. coleoptile.
, c. seed coat.
d. funiculus.
e. hilum. - Answer-seed coat.
Which of the following is NOT part of a phytomere?
a. axillary bud
b. leaf
c. internode
d. node
e. apical meristem - Answer-apical meristem
The cotyledons elongate most dramatically and may become curved during the
_______ stage.
a. heart
b. proembyro
c. suspensor
d. globular
e. torpedo - Answer-torpedo
A plant with helical phyllotaxy has:
a. a decussate leaf arrangement.
b. opposite leaves.
c. three or more leaves per node.
d. one leaf per node, arranged spirally.
e. one leaf per node, arranged in two opposite ranks. - Answer-one leaf per node,
arranged spirally.
In temperate regions of the world, after-ripening of the seed (e.g., acorns) is
triggered by:
a. low oxygen levels.
