ARBORIST CERTIFICATION TEST PREP EXAM QUESTIONS AND
ANSWERS
meristems - CORRECT ANSWER✅✅site of rapid cell division in the shoot tips, root tips, and cambium:
apical - CORRECT ANSWER✅✅meristems located at the end of the shoots are called primary, or
_________________ meristems
apical dominance - CORRECT ANSWER✅✅the tendency for terminal buds to inhibit the growth of
lateral buds is called ________________
leaves - CORRECT ANSWER✅✅the food factories of trees are the ______________
photosynthesis - CORRECT ANSWER✅✅the process of ______________ combines carbon dioxide and
water in a reaction driven by light to produce sugars...also produces oxygen
chlorophyll - CORRECT ANSWER✅✅the green color of leaves is created by the presence of
_____________, which is necessary for photosynth to take place
transpiration - CORRECT ANSWER✅✅the loss of water vapor from leaves
stomata - CORRECT ANSWER✅✅the opening and closing of _____________ allow for gas exchange
guard cells - CORRECT ANSWER✅✅transpiration is controlled by ___________
xylem - CORRECT ANSWER✅✅water and dissolved essential minerals are transported within the tree in
the ______________
phloem - CORRECT ANSWER✅✅carbohydrates are conducted through the tree in the ____________
,cambium - CORRECT ANSWER✅✅the ____________ is a layer of meristematic cells located between
the phloem and xylem
branch collar - CORRECT ANSWER✅✅the _____________ _______________ is formed when trunk
tissue grows around branch tissues.
branch bark ridge - CORRECT ANSWER✅✅as branch and trunk tissues expand against each other int he
branch union, the ______________ _______________ _____________is formed
bark - CORRECT ANSWER✅✅______________ protects the branches and trunk of a tree from
mechanical injury and desiccation
osmosis - CORRECT ANSWER✅✅water enters young roots or mycorrhizal roots in part, by a process
called _____________
tropism - CORRECT ANSWER✅✅the orientation of growth in response to an external stimulus is called
______________
compartmentalization od decay in trees - CORRECT ANSWER✅✅CODIT stands for _____________
excurrent - CORRECT ANSWER✅✅trees with upright growth and strong central leader are
______________
decurrent - CORRECT ANSWER✅✅trees with rounded, broader multi-leader growth habit are
______________
mycorrhizae - CORRECT ANSWER✅✅roots and fungi form _____________
respiration - CORRECT ANSWER✅✅the process by which chemical energy, stored as sugar and starch, is
released is called _______________
, deciduous - CORRECT ANSWER✅✅trees that lose their leaves in the autumn
evergreen - CORRECT ANSWER✅✅trees that maintain their leaves for more than one year
taxonomy - CORRECT ANSWER✅✅the classification of plants
angiosperms - CORRECT ANSWER✅✅plants whose seeds are covered (not conifers)
gymnosperms - CORRECT ANSWER✅✅plants with naked seeds (conifers)
dicotyledon (dicot) - CORRECT ANSWER✅✅plants with two seed leaves at germination
monocotyledons (monocots) - CORRECT ANSWER✅✅plants with only one seed leaf at germination
(grasses, banana, palms)
nomenclature - CORRECT ANSWER✅✅the naming of plants
one - CORRECT ANSWER✅✅a compound leaf with multiple leaflets will have how many bud(s)
genus - CORRECT ANSWER✅✅in the scientific name Acer saccharum, "Acer" identifies the
_____________
varieties/cultivars - CORRECT ANSWER✅✅species are often subdivided into ________________ that
have distinct differences from the general species
cultivar - CORRECT ANSWER✅✅a ___________________ is a cultivated variety
opposite - CORRECT ANSWER✅✅when two leaves and/or buds are located at the same node on a twig,
the arrangement is called ________________
ANSWERS
meristems - CORRECT ANSWER✅✅site of rapid cell division in the shoot tips, root tips, and cambium:
apical - CORRECT ANSWER✅✅meristems located at the end of the shoots are called primary, or
_________________ meristems
apical dominance - CORRECT ANSWER✅✅the tendency for terminal buds to inhibit the growth of
lateral buds is called ________________
leaves - CORRECT ANSWER✅✅the food factories of trees are the ______________
photosynthesis - CORRECT ANSWER✅✅the process of ______________ combines carbon dioxide and
water in a reaction driven by light to produce sugars...also produces oxygen
chlorophyll - CORRECT ANSWER✅✅the green color of leaves is created by the presence of
_____________, which is necessary for photosynth to take place
transpiration - CORRECT ANSWER✅✅the loss of water vapor from leaves
stomata - CORRECT ANSWER✅✅the opening and closing of _____________ allow for gas exchange
guard cells - CORRECT ANSWER✅✅transpiration is controlled by ___________
xylem - CORRECT ANSWER✅✅water and dissolved essential minerals are transported within the tree in
the ______________
phloem - CORRECT ANSWER✅✅carbohydrates are conducted through the tree in the ____________
,cambium - CORRECT ANSWER✅✅the ____________ is a layer of meristematic cells located between
the phloem and xylem
branch collar - CORRECT ANSWER✅✅the _____________ _______________ is formed when trunk
tissue grows around branch tissues.
branch bark ridge - CORRECT ANSWER✅✅as branch and trunk tissues expand against each other int he
branch union, the ______________ _______________ _____________is formed
bark - CORRECT ANSWER✅✅______________ protects the branches and trunk of a tree from
mechanical injury and desiccation
osmosis - CORRECT ANSWER✅✅water enters young roots or mycorrhizal roots in part, by a process
called _____________
tropism - CORRECT ANSWER✅✅the orientation of growth in response to an external stimulus is called
______________
compartmentalization od decay in trees - CORRECT ANSWER✅✅CODIT stands for _____________
excurrent - CORRECT ANSWER✅✅trees with upright growth and strong central leader are
______________
decurrent - CORRECT ANSWER✅✅trees with rounded, broader multi-leader growth habit are
______________
mycorrhizae - CORRECT ANSWER✅✅roots and fungi form _____________
respiration - CORRECT ANSWER✅✅the process by which chemical energy, stored as sugar and starch, is
released is called _______________
, deciduous - CORRECT ANSWER✅✅trees that lose their leaves in the autumn
evergreen - CORRECT ANSWER✅✅trees that maintain their leaves for more than one year
taxonomy - CORRECT ANSWER✅✅the classification of plants
angiosperms - CORRECT ANSWER✅✅plants whose seeds are covered (not conifers)
gymnosperms - CORRECT ANSWER✅✅plants with naked seeds (conifers)
dicotyledon (dicot) - CORRECT ANSWER✅✅plants with two seed leaves at germination
monocotyledons (monocots) - CORRECT ANSWER✅✅plants with only one seed leaf at germination
(grasses, banana, palms)
nomenclature - CORRECT ANSWER✅✅the naming of plants
one - CORRECT ANSWER✅✅a compound leaf with multiple leaflets will have how many bud(s)
genus - CORRECT ANSWER✅✅in the scientific name Acer saccharum, "Acer" identifies the
_____________
varieties/cultivars - CORRECT ANSWER✅✅species are often subdivided into ________________ that
have distinct differences from the general species
cultivar - CORRECT ANSWER✅✅a ___________________ is a cultivated variety
opposite - CORRECT ANSWER✅✅when two leaves and/or buds are located at the same node on a twig,
the arrangement is called ________________
