ISA Arborist Certification Study Guide Chapter 1 with
Correct Answers
Meristems - Answer -Sites of rapid cell division in the shoot tips, root tips, and cambium are called
____________.
Apical - Answer -Meristems located at the end of the shoots are called primary or __________
meristems.
Apical dominance - Answer -The tendency for terminal buds to inhibit the growth of lateral buds is called
__________.
Leaves - Answer -The "food factories" of trees are the _________.
Photosynthesis, Oxygen - Answer -The procress of ___________ combines carbon dioxide and water in
the reaction driven by light to produce sugars. __________ is also a product of this reaction.
Chlorophyll - Answer -The green color of leaves is created by the presence of _________, which is
necessary for photosynthesis.
Transpiration - Answer -___________ is the loss of water vapor from the leaves.
Stomata, guard cells - Answer -The opening and closing of _________ allow for gas exchange, and
transpiration is controlled by the __________ _________.
Xylem, Phloem - Answer -Water and dissolved essential minerals are transported within the tree in the
________. The __________ conducts carbohydrates.
Cambium - Answer -The _________ is a layer of meristematic cells located between the phloem and
xylem.
Branch collar, Branch bark ridge - Answer -The _________ _________ is formed when trunk tissue grows
around branch tissues. As the branch and trunk tissues expand against each other in the branch union,
the ________ ____ ________ is formed.
Bark - Answer -______ protects the branches and trunk of a tree from mechanical injury and desiccation.
Aborption, Conduction, Anchorage, Storage, Hormone production - Answer -Name four functions of the
root system
Osmosis - Answer -Water enters young roots or mycorrhizal roots, in part, by process called _________.
Tropism, Phototropism, Geotropism - Answer -The orientation of growth in response to an external
stimulus is called ___________. Two examples are ____________ and ____________.
Correct Answers
Meristems - Answer -Sites of rapid cell division in the shoot tips, root tips, and cambium are called
____________.
Apical - Answer -Meristems located at the end of the shoots are called primary or __________
meristems.
Apical dominance - Answer -The tendency for terminal buds to inhibit the growth of lateral buds is called
__________.
Leaves - Answer -The "food factories" of trees are the _________.
Photosynthesis, Oxygen - Answer -The procress of ___________ combines carbon dioxide and water in
the reaction driven by light to produce sugars. __________ is also a product of this reaction.
Chlorophyll - Answer -The green color of leaves is created by the presence of _________, which is
necessary for photosynthesis.
Transpiration - Answer -___________ is the loss of water vapor from the leaves.
Stomata, guard cells - Answer -The opening and closing of _________ allow for gas exchange, and
transpiration is controlled by the __________ _________.
Xylem, Phloem - Answer -Water and dissolved essential minerals are transported within the tree in the
________. The __________ conducts carbohydrates.
Cambium - Answer -The _________ is a layer of meristematic cells located between the phloem and
xylem.
Branch collar, Branch bark ridge - Answer -The _________ _________ is formed when trunk tissue grows
around branch tissues. As the branch and trunk tissues expand against each other in the branch union,
the ________ ____ ________ is formed.
Bark - Answer -______ protects the branches and trunk of a tree from mechanical injury and desiccation.
Aborption, Conduction, Anchorage, Storage, Hormone production - Answer -Name four functions of the
root system
Osmosis - Answer -Water enters young roots or mycorrhizal roots, in part, by process called _________.
Tropism, Phototropism, Geotropism - Answer -The orientation of growth in response to an external
stimulus is called ___________. Two examples are ____________ and ____________.
