©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Arborist Certification Study Guide Exam
Questions and Answers 100% Solved
Meristem - ✔✔Sites of rapid cell division in the shoot tips, root tips, and
cambium.
Apical meristem - ✔✔Meristems located at the end of the shoot are called
primary, or _________ meristems
Scales - ✔✔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 - ✔✔The tendency for terminal buds to inhibit the growth
of lateral buds is called ______________.
Leaves - ✔✔The food factories of trees are the ____________.
Photosynthesis & Oxygen - ✔✔The process of _____________ combines
carbon dioxide and water in a reaction driven by light to produce sugars.
_________ is also a product of this reaction.
,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Chlorophyll - ✔✔The green color of leaves is created by the presence of
_____________, which is necessary for photosynthesis to take place.
Transpiration - ✔✔___________ is the loss of water vapor from the leaves.
Stomata & Guard Cells - ✔✔The opening and closing of _________ allows
for gas exchange, and transpiration is controlled by the ___________.
Xylem & Phloem - ✔✔Water and dissolved essential minerals are
transported within the tree in the ___________. The ____________
conducts carbohydrates.
Cambium - ✔✔The ______________ is a layer of meristematic cells
located between the phloem and the xylem.
Branch collar & Branch bark ridge - ✔✔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 - ✔✔___________ protects the branches and trunk of a tree from
mechanical injury and desiccation.
Absorption, conduction, anchorage, and storage. - ✔✔Name four functions
of the root system>
,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Osmosis - ✔✔Water enters young roots or mycorrhizal roots by a process
called ______________.
Tropism, Phototropism & Geotropism - ✔✔The orientation of growth in
response to an external stimulus is called _____________. Two examples
are ___________ and ____________.
CODIT - ✔✔Compartmentalization Of Decay In Trees
Excurrent & Decurrent - ✔✔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 - ✔✔Roots and fungi called ___________ exist in a symbiotic
relationship, which aids in the uptake of water and minerals.
Respiration - ✔✔The process by which chemical energy, stored as sugar
and starch, is released is called ______________.
Deciduous & Evergreen - ✔✔Trees that lose their leaves in the fall are
called _________. Trees that maintain their leaves for more than one year
are called ___________.
Twig anatomy - ✔✔twig anatomy
Cross section of young stem - ✔✔Stem anatomy
, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Auxin - ✔✔A plant hormone
Cuticle - ✔✔Waxy covering of a leaf
Petiole - ✔✔Stalk of a leaf
Internode - ✔✔Between the nodes of a twig.
Lenticel - ✔✔Small openings in stems for gas exchange.
Ray - ✔✔Cells that cross the phloem and xylem for radial transport.
Absorbing roots - ✔✔mostly located in the upper 12 inches of soil.
Source - ✔✔Mature, green leaves -- sugar producers.
Sink - ✔✔Uses more energy than it produces.
Taxonomy - ✔✔The classification of plants is called __________.
Kingdom
Phylum
Class
Order
Family
Genus
Species epithet - ✔✔List the levels of plant classification. The first letter of
each term is given.
Arborist Certification Study Guide Exam
Questions and Answers 100% Solved
Meristem - ✔✔Sites of rapid cell division in the shoot tips, root tips, and
cambium.
Apical meristem - ✔✔Meristems located at the end of the shoot are called
primary, or _________ meristems
Scales - ✔✔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 - ✔✔The tendency for terminal buds to inhibit the growth
of lateral buds is called ______________.
Leaves - ✔✔The food factories of trees are the ____________.
Photosynthesis & Oxygen - ✔✔The process of _____________ combines
carbon dioxide and water in a reaction driven by light to produce sugars.
_________ is also a product of this reaction.
,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Chlorophyll - ✔✔The green color of leaves is created by the presence of
_____________, which is necessary for photosynthesis to take place.
Transpiration - ✔✔___________ is the loss of water vapor from the leaves.
Stomata & Guard Cells - ✔✔The opening and closing of _________ allows
for gas exchange, and transpiration is controlled by the ___________.
Xylem & Phloem - ✔✔Water and dissolved essential minerals are
transported within the tree in the ___________. The ____________
conducts carbohydrates.
Cambium - ✔✔The ______________ is a layer of meristematic cells
located between the phloem and the xylem.
Branch collar & Branch bark ridge - ✔✔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 - ✔✔___________ protects the branches and trunk of a tree from
mechanical injury and desiccation.
Absorption, conduction, anchorage, and storage. - ✔✔Name four functions
of the root system>
,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Osmosis - ✔✔Water enters young roots or mycorrhizal roots by a process
called ______________.
Tropism, Phototropism & Geotropism - ✔✔The orientation of growth in
response to an external stimulus is called _____________. Two examples
are ___________ and ____________.
CODIT - ✔✔Compartmentalization Of Decay In Trees
Excurrent & Decurrent - ✔✔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 - ✔✔Roots and fungi called ___________ exist in a symbiotic
relationship, which aids in the uptake of water and minerals.
Respiration - ✔✔The process by which chemical energy, stored as sugar
and starch, is released is called ______________.
Deciduous & Evergreen - ✔✔Trees that lose their leaves in the fall are
called _________. Trees that maintain their leaves for more than one year
are called ___________.
Twig anatomy - ✔✔twig anatomy
Cross section of young stem - ✔✔Stem anatomy
, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Auxin - ✔✔A plant hormone
Cuticle - ✔✔Waxy covering of a leaf
Petiole - ✔✔Stalk of a leaf
Internode - ✔✔Between the nodes of a twig.
Lenticel - ✔✔Small openings in stems for gas exchange.
Ray - ✔✔Cells that cross the phloem and xylem for radial transport.
Absorbing roots - ✔✔mostly located in the upper 12 inches of soil.
Source - ✔✔Mature, green leaves -- sugar producers.
Sink - ✔✔Uses more energy than it produces.
Taxonomy - ✔✔The classification of plants is called __________.
Kingdom
Phylum
Class
Order
Family
Genus
Species epithet - ✔✔List the levels of plant classification. The first letter of
each term is given.
