ARBORIST CERTIFICATION
STUDY GUIDE Questions with100%
Verified Answers Latest U updates
2024 GRADE A+
Meristem correct answers Sites of rapid cell division in the shoot tips, root tips, and cambium.
Apical meristem correct answers Meristems located at the end of the shoot are called primary, or
_________ meristems
Scales correct answers Buds are covered by _____________ that leave permanent scars on the
twig when the buds break dormancy. These scars can be useful in tree ID.
Apical dominance correct answers The tendency for terminal buds to inhibit the growth of lateral
buds is called ______________.
Leaves correct answers The food factories of trees are the ____________.
Photosynthesis & Oxygen correct answers The process of _____________ combines carbon
dioxide and water in a reaction driven by light to produce sugars. _________ is also a product of
this reaction.
Chlorophyll correct answers The green color of leaves is created by the presence of
_____________, which is necessary for photosynthesis to take place.
Transpiration correct answers ___________ is the loss of water vapor from the leaves.
Stomata & Guard Cells correct answers The opening and closing of _________ allows for gas
exchange, and transpiration is controlled by the ___________.
Xylem & Phloem correct answers Water and dissolved essential minerals are transported within
the tree in the ___________. The ____________ conducts carbohydrates.
Cambium correct answers The ______________ is a layer of meristematic cells located between
the phloem and the xylem.
,Branch collar & Branch bark ridge correct answers The ______ ________ is formed when trunk
tissue grows around branch tissues. As the branch and trunk tissues expand against each other in
the crotch, the __________ ______ ________ is formed.
Bark correct answers ___________ protects the branches and trunk of a tree from mechanical
injury and desiccation.
Absorption, conduction, anchorage, and storage. correct answers Name four functions of the root
system>
Osmosis correct answers Water enters young roots or mycorrhizal roots by a process called
______________.
Tropism, Phototropism & Geotropism correct answers The orientation of growth in response to
an external stimulus is called _____________. Two examples are ___________ and
____________.
CODIT correct answers Compartmentalization Of Decay In Trees
Excurrent & Decurrent correct answers Trees with upright growth and a strong, central leader are
said to exhibit ______________ growth. More rounded trees, which are often broader than they
are tall, have ______________ growth habits.
Mycorrhizae correct answers Roots and fungi called ___________ exist in a symbiotic
relationship, which aids in the uptake of water and minerals.
Respiration correct answers The process by which chemical energy, stored as sugar and starch, is
released is called ______________.
Deciduous & Evergreen correct answers Trees that lose their leaves in the fall are called
_________. Trees that maintain their leaves for more than one year are called ___________.
Twig anatomy correct answers twig anatomy
Cross section of young stem correct answers Stem anatomy
Auxin correct answers A plant hormone
Cuticle correct answers Waxy covering of a leaf
Petiole correct answers Stalk of a leaf
Internode correct answers Between the nodes of a twig.
Lenticel correct answers Small openings in stems for gas exchange.
,Ray correct answers Cells that cross the phloem and xylem for radial transport.
Absorbing roots correct answers mostly located in the upper 12 inches of soil.
Source correct answers Mature, green leaves -- sugar producers.
Sink correct answers Uses more energy than it produces.
Taxonomy correct answers The classification of plants is called __________.
Kingdom
Phylum
Class
Order
Family
Genus
Species epithet correct answers List the levels of plant classification. The first letter of each term
is given.
Angiosperms and Gymnosperms correct answers ___________ are vascular plants whose seeds
are covered (by an ovary). __________ are vascular plants with "naked seeds".
Monocotyledons (or monocots) correct answers The term "dicotyledon (dicot)" refers to plants
that have two seed leaves at germination. Grasses and palm trees belong to another group called
_________ and have only one seed leaf.
Nomenclature correct answers The naming of plants is called ___________.
Form or growth habit
Bark texture
Leaves
Flowers
Fruit
Seed
Buds
Leaf scars
Scent correct answers Name five plant characteristics used to identify trees.
Opposite leaves correct answers In temperate zones, most of the trees with opposite leaf
arrangement fall into four genera represented by "MAD Buck", for Maple, Ash, Dogwood, and
Buckeye.
Alternate leaves correct answers Alternate leaves
Whorled leaves correct answers Whorled leaves
, buckeye, horsechestnut (pictured) correct answers Name a tree with palmately compound leaves
__________.
Ash, walnut, Kentucky coffeetree, ailanthus, honeylocust correct answers Name a tree with
pinnately compound leaves __________.
Lobed leaf correct answers
Compound leaf with serrate margins correct answers
One correct answers A compound leaf with multiple leaflets will have _________ bud(s).
ponderosa pine correct answers Give an example of a tree that has more than one common name:
_____________.
Genus and Specific Epithet correct answers In the scientific name Acer saccharum, Acer
identifies the ___________, and saccharum identifies the _________ ____________.
Varieties and cultivars correct answers Species are often subdivided into _________ or
___________ that have distinct differences from the general species.
Cultivar correct answers A ___________ is a cultivated variety.
There are not in the same genus. correct answers Douglas fir (Pseudotsuga menziesii) differs
from blasam fir (Abies balsamea) in that...
Opposite correct answers When two leaves and/or buds are located at the same node on a twig,
the arrangement is called...
Quercus rubra correct answers Select the scientific name that is written correctly...
Quercus (oaks) correct answers Which genus of trees usually does NOT have an opposite leaf
arrangement?
Pines correct answers Which conifers have needles in bundles?
45%, 50%, and 5% correct answers By volume, ideal soils are composed of ____ percent mineral
materials (sand, silt, and clay), ____ percent open or pore space, and ____ percent organic matter
and organisms.
O: Organic Layer
A: Contains most of the Absorbing roots of trees
E: Mineral Weathering
B: Composed of fine-textured materials from the A horizon and soil particles from the lower
parent material.
STUDY GUIDE Questions with100%
Verified Answers Latest U updates
2024 GRADE A+
Meristem correct answers Sites of rapid cell division in the shoot tips, root tips, and cambium.
Apical meristem correct answers Meristems located at the end of the shoot are called primary, or
_________ meristems
Scales correct answers Buds are covered by _____________ that leave permanent scars on the
twig when the buds break dormancy. These scars can be useful in tree ID.
Apical dominance correct answers The tendency for terminal buds to inhibit the growth of lateral
buds is called ______________.
Leaves correct answers The food factories of trees are the ____________.
Photosynthesis & Oxygen correct answers The process of _____________ combines carbon
dioxide and water in a reaction driven by light to produce sugars. _________ is also a product of
this reaction.
Chlorophyll correct answers The green color of leaves is created by the presence of
_____________, which is necessary for photosynthesis to take place.
Transpiration correct answers ___________ is the loss of water vapor from the leaves.
Stomata & Guard Cells correct answers The opening and closing of _________ allows for gas
exchange, and transpiration is controlled by the ___________.
Xylem & Phloem correct answers Water and dissolved essential minerals are transported within
the tree in the ___________. The ____________ conducts carbohydrates.
Cambium correct answers The ______________ is a layer of meristematic cells located between
the phloem and the xylem.
,Branch collar & Branch bark ridge correct answers The ______ ________ is formed when trunk
tissue grows around branch tissues. As the branch and trunk tissues expand against each other in
the crotch, the __________ ______ ________ is formed.
Bark correct answers ___________ protects the branches and trunk of a tree from mechanical
injury and desiccation.
Absorption, conduction, anchorage, and storage. correct answers Name four functions of the root
system>
Osmosis correct answers Water enters young roots or mycorrhizal roots by a process called
______________.
Tropism, Phototropism & Geotropism correct answers The orientation of growth in response to
an external stimulus is called _____________. Two examples are ___________ and
____________.
CODIT correct answers Compartmentalization Of Decay In Trees
Excurrent & Decurrent correct answers Trees with upright growth and a strong, central leader are
said to exhibit ______________ growth. More rounded trees, which are often broader than they
are tall, have ______________ growth habits.
Mycorrhizae correct answers Roots and fungi called ___________ exist in a symbiotic
relationship, which aids in the uptake of water and minerals.
Respiration correct answers The process by which chemical energy, stored as sugar and starch, is
released is called ______________.
Deciduous & Evergreen correct answers Trees that lose their leaves in the fall are called
_________. Trees that maintain their leaves for more than one year are called ___________.
Twig anatomy correct answers twig anatomy
Cross section of young stem correct answers Stem anatomy
Auxin correct answers A plant hormone
Cuticle correct answers Waxy covering of a leaf
Petiole correct answers Stalk of a leaf
Internode correct answers Between the nodes of a twig.
Lenticel correct answers Small openings in stems for gas exchange.
,Ray correct answers Cells that cross the phloem and xylem for radial transport.
Absorbing roots correct answers mostly located in the upper 12 inches of soil.
Source correct answers Mature, green leaves -- sugar producers.
Sink correct answers Uses more energy than it produces.
Taxonomy correct answers The classification of plants is called __________.
Kingdom
Phylum
Class
Order
Family
Genus
Species epithet correct answers List the levels of plant classification. The first letter of each term
is given.
Angiosperms and Gymnosperms correct answers ___________ are vascular plants whose seeds
are covered (by an ovary). __________ are vascular plants with "naked seeds".
Monocotyledons (or monocots) correct answers The term "dicotyledon (dicot)" refers to plants
that have two seed leaves at germination. Grasses and palm trees belong to another group called
_________ and have only one seed leaf.
Nomenclature correct answers The naming of plants is called ___________.
Form or growth habit
Bark texture
Leaves
Flowers
Fruit
Seed
Buds
Leaf scars
Scent correct answers Name five plant characteristics used to identify trees.
Opposite leaves correct answers In temperate zones, most of the trees with opposite leaf
arrangement fall into four genera represented by "MAD Buck", for Maple, Ash, Dogwood, and
Buckeye.
Alternate leaves correct answers Alternate leaves
Whorled leaves correct answers Whorled leaves
, buckeye, horsechestnut (pictured) correct answers Name a tree with palmately compound leaves
__________.
Ash, walnut, Kentucky coffeetree, ailanthus, honeylocust correct answers Name a tree with
pinnately compound leaves __________.
Lobed leaf correct answers
Compound leaf with serrate margins correct answers
One correct answers A compound leaf with multiple leaflets will have _________ bud(s).
ponderosa pine correct answers Give an example of a tree that has more than one common name:
_____________.
Genus and Specific Epithet correct answers In the scientific name Acer saccharum, Acer
identifies the ___________, and saccharum identifies the _________ ____________.
Varieties and cultivars correct answers Species are often subdivided into _________ or
___________ that have distinct differences from the general species.
Cultivar correct answers A ___________ is a cultivated variety.
There are not in the same genus. correct answers Douglas fir (Pseudotsuga menziesii) differs
from blasam fir (Abies balsamea) in that...
Opposite correct answers When two leaves and/or buds are located at the same node on a twig,
the arrangement is called...
Quercus rubra correct answers Select the scientific name that is written correctly...
Quercus (oaks) correct answers Which genus of trees usually does NOT have an opposite leaf
arrangement?
Pines correct answers Which conifers have needles in bundles?
45%, 50%, and 5% correct answers By volume, ideal soils are composed of ____ percent mineral
materials (sand, silt, and clay), ____ percent open or pore space, and ____ percent organic matter
and organisms.
O: Organic Layer
A: Contains most of the Absorbing roots of trees
E: Mineral Weathering
B: Composed of fine-textured materials from the A horizon and soil particles from the lower
parent material.
