Campbell Biology ;Plant structure, Growth and
Development Questions and Answers 100% Verified
In a typical woody stem, the vascular cambium is located - ✔✔outside the pith and primary xylem
and to the inside of the primary phloem and the cortex
In addition to plasticity, plant species have by natural selection accumulated - ✔✔characteristics of
morphology (external form) that vary little within the species
In angiosperm roots, the stele is a - ✔✔vascular cylinder
In angiosperms the stele of the root is a - ✔✔solid central vascular cylinder
In classifying angiosperms, taxonomists may use - ✔✔leaf morphology as a criterion
In cross section, the vascular cambium appears as - ✔✔a ring of meristematic cells
In many monocots (root structure) - ✔✔a core of parenchyma cells is surrounded by rings of xylem
then phloem
In most eudicots, the vascular tissue consists of - ✔✔vascular bundles arranged in a ring
In most eudicots, the xylem is - ✔✔starlike in appearance with phloem between the "arms"
In most monocot stems, the vascular bundles are - ✔✔scattered throughout the ground tissue,
rather than forming a ring
In most plants, absorption of water and minerals occurs at - ✔✔the root hairs, where vast numbers
of tiny root hairs increase the surface area
In nonwoody plants, the dermal tissue system consists of - ✔✔the epidermis
In woody plants, protective tissues called ..... replaces the epidermis in older regions of stems and
roots - ✔✔periderm replace the epidermis in older regions of stems and roots
Intercalary meristems - ✔✔In some monocots, meristematic activity occurs at the bases of stems
and leaves
Internodes - ✔✔the stem segments between nodes
Late wood - ✔✔formed in late summer, has thick-walled cells and contributes more to stem support
Lateral meristems - ✔✔add thickness to woody plants, a process called secondary growth
Lateral roots are responsible for - ✔✔absorption
Lateral roots arise from within the - ✔✔Pericycle, outermost layer of vascular cylinder
Lateral shoots develop from - ✔✔axillary buds on the stem's surface
Leaf Veins - ✔✔are the leaf's vascular bundles and function as the leaf's skeleton
Leaves develop from - ✔✔leaf primordia along the sides of the apical meristem
, Leaves generally consist of - ✔✔A flattened blade and a stalk called the petiole, which joins the leaf
to a node of the stem
Lenticels in the periderm allow for - ✔✔gas exchange between living stem or root cells and the
outside air
Many plants have modified roots; name the modified roots - ✔✔-Prop Roots (corn, Banyan Tree)
-Storage roots (Beets)
-Strangling aerial roots (Ficus)
-Buttress roots (Ceiba tree)
-Pneumatophores (Aricennia)
Many plants have modified stems; name the different types of modified stems - ✔✔rhizomes,
stolons, tubers and bulbs
Mature Parenchyma Cells - ✔✔-Have thin and flexible primary walls
-Lack secondary walls
-Are the least specialized
-Perform the most metabolic functions
-Retain the ability to divide and differentiate
Meristems are - ✔✔perpetually embryonic tissue and allow for indeterminate growth
Meristems give rise to - ✔✔-Initials, also called stem cells, which remain in the meristem
-Derivatives, which become specialized in mature tissues
Microtubules become concentrated into a ring called - ✔✔the preprophase band that predicts the
future plane of cell division
Morphogenesis is - ✔✔the development of body form and organization
Most eudicots have what type of veins - ✔✔branching veins
Most monocots have what type of veins - ✔✔parallel veins
Name that Water-Conducting Cells of the Xylem - ✔✔1. tracheids
2. vessel elements
Both are dead at maturity
Name the three tissue systems in plants - ✔✔-Dermal, Vascular and Ground Tissue systems
-Each tissue system is continuous throughout the plant
Name the three zone of growth in roots - ✔✔1. Zone of cell division
2. Zone of elongation
3. Zone of differentiation, or maturation
Name the two Lateral meristems - ✔✔-Vascular cambium
-Cork cambium
Name the two main types of meristems - ✔✔-Apical Meristems
-Lateral Meristems
Name the two major groups of angiosperms - ✔✔Monocots and eudicots are the two major groups
of angiosperms
Name the two vascular tissues in plants - ✔✔The two vascular tissues are xylem and phloem
Development Questions and Answers 100% Verified
In a typical woody stem, the vascular cambium is located - ✔✔outside the pith and primary xylem
and to the inside of the primary phloem and the cortex
In addition to plasticity, plant species have by natural selection accumulated - ✔✔characteristics of
morphology (external form) that vary little within the species
In angiosperm roots, the stele is a - ✔✔vascular cylinder
In angiosperms the stele of the root is a - ✔✔solid central vascular cylinder
In classifying angiosperms, taxonomists may use - ✔✔leaf morphology as a criterion
In cross section, the vascular cambium appears as - ✔✔a ring of meristematic cells
In many monocots (root structure) - ✔✔a core of parenchyma cells is surrounded by rings of xylem
then phloem
In most eudicots, the vascular tissue consists of - ✔✔vascular bundles arranged in a ring
In most eudicots, the xylem is - ✔✔starlike in appearance with phloem between the "arms"
In most monocot stems, the vascular bundles are - ✔✔scattered throughout the ground tissue,
rather than forming a ring
In most plants, absorption of water and minerals occurs at - ✔✔the root hairs, where vast numbers
of tiny root hairs increase the surface area
In nonwoody plants, the dermal tissue system consists of - ✔✔the epidermis
In woody plants, protective tissues called ..... replaces the epidermis in older regions of stems and
roots - ✔✔periderm replace the epidermis in older regions of stems and roots
Intercalary meristems - ✔✔In some monocots, meristematic activity occurs at the bases of stems
and leaves
Internodes - ✔✔the stem segments between nodes
Late wood - ✔✔formed in late summer, has thick-walled cells and contributes more to stem support
Lateral meristems - ✔✔add thickness to woody plants, a process called secondary growth
Lateral roots are responsible for - ✔✔absorption
Lateral roots arise from within the - ✔✔Pericycle, outermost layer of vascular cylinder
Lateral shoots develop from - ✔✔axillary buds on the stem's surface
Leaf Veins - ✔✔are the leaf's vascular bundles and function as the leaf's skeleton
Leaves develop from - ✔✔leaf primordia along the sides of the apical meristem
, Leaves generally consist of - ✔✔A flattened blade and a stalk called the petiole, which joins the leaf
to a node of the stem
Lenticels in the periderm allow for - ✔✔gas exchange between living stem or root cells and the
outside air
Many plants have modified roots; name the modified roots - ✔✔-Prop Roots (corn, Banyan Tree)
-Storage roots (Beets)
-Strangling aerial roots (Ficus)
-Buttress roots (Ceiba tree)
-Pneumatophores (Aricennia)
Many plants have modified stems; name the different types of modified stems - ✔✔rhizomes,
stolons, tubers and bulbs
Mature Parenchyma Cells - ✔✔-Have thin and flexible primary walls
-Lack secondary walls
-Are the least specialized
-Perform the most metabolic functions
-Retain the ability to divide and differentiate
Meristems are - ✔✔perpetually embryonic tissue and allow for indeterminate growth
Meristems give rise to - ✔✔-Initials, also called stem cells, which remain in the meristem
-Derivatives, which become specialized in mature tissues
Microtubules become concentrated into a ring called - ✔✔the preprophase band that predicts the
future plane of cell division
Morphogenesis is - ✔✔the development of body form and organization
Most eudicots have what type of veins - ✔✔branching veins
Most monocots have what type of veins - ✔✔parallel veins
Name that Water-Conducting Cells of the Xylem - ✔✔1. tracheids
2. vessel elements
Both are dead at maturity
Name the three tissue systems in plants - ✔✔-Dermal, Vascular and Ground Tissue systems
-Each tissue system is continuous throughout the plant
Name the three zone of growth in roots - ✔✔1. Zone of cell division
2. Zone of elongation
3. Zone of differentiation, or maturation
Name the two Lateral meristems - ✔✔-Vascular cambium
-Cork cambium
Name the two main types of meristems - ✔✔-Apical Meristems
-Lateral Meristems
Name the two major groups of angiosperms - ✔✔Monocots and eudicots are the two major groups
of angiosperms
Name the two vascular tissues in plants - ✔✔The two vascular tissues are xylem and phloem
