ISA Certified Arborist Exam Questions and
Answers (Most Recent Version, Complete
Study Material).
Chlorophyll - CORRECT ANSWERS Makes the color or the leaves green so photosynthesis can
take place
Transpiration - CORRECT ANSWERS loss of water vapor from leaves
Bark - CORRECT ANSWERS protects branches & trunk of tree from injury
Excurrent Growth - CORRECT ANSWERS Orientation of growth in external cell
M.A.D.HORSE - CORRECT ANSWERS Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT
pH - CORRECT ANSWERS Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral
Decurrent Growth - CORRECT ANSWERS rounded or broader tree growth
Deciduous - CORRECT ANSWERS loss of leaves in the fall
Respiration - CORRECT ANSWERS process of converting food into energy
Stomata - CORRECT ANSWERS pours in leaves that open and close to allow for water
transportation
Xylem - CORRECT ANSWERS transportation for the water and minerals throughout the tree
Phloem - CORRECT ANSWERS Conducts Carbohydrates
Osmosis - CORRECT ANSWERS Process how water enters roots
Organic Matter - CORRECT ANSWERS organic components that are decaying matter to help
increase water holding & nutrients to improve soil structure
Cation Exchange Capacity (CEC) - CORRECT ANSWERS measure of soils capacity to attract, retain
& exchange a positive charge
Answers (Most Recent Version, Complete
Study Material).
Chlorophyll - CORRECT ANSWERS Makes the color or the leaves green so photosynthesis can
take place
Transpiration - CORRECT ANSWERS loss of water vapor from leaves
Bark - CORRECT ANSWERS protects branches & trunk of tree from injury
Excurrent Growth - CORRECT ANSWERS Orientation of growth in external cell
M.A.D.HORSE - CORRECT ANSWERS Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT
pH - CORRECT ANSWERS Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral
Decurrent Growth - CORRECT ANSWERS rounded or broader tree growth
Deciduous - CORRECT ANSWERS loss of leaves in the fall
Respiration - CORRECT ANSWERS process of converting food into energy
Stomata - CORRECT ANSWERS pours in leaves that open and close to allow for water
transportation
Xylem - CORRECT ANSWERS transportation for the water and minerals throughout the tree
Phloem - CORRECT ANSWERS Conducts Carbohydrates
Osmosis - CORRECT ANSWERS Process how water enters roots
Organic Matter - CORRECT ANSWERS organic components that are decaying matter to help
increase water holding & nutrients to improve soil structure
Cation Exchange Capacity (CEC) - CORRECT ANSWERS measure of soils capacity to attract, retain
& exchange a positive charge
