ISA Certified Arborist Exam 2024 Update Answered
Correctly
Chlorophyll - Answer -Makes the color or the leaves green so photosynthesis can take place
Transpiration - Answer -loss of water vapor from leaves
Bark - Answer -protects branches & trunk of tree from injury
Excurrent Growth - Answer -Orientation of growth in external cell
M.A.D.HORSE - Answer -Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT
pH - Answer -Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral
Decurrent Growth - Answer -rounded or broader tree growth
Deciduous - Answer -loss of leaves in the fall
Respiration - Answer -process of converting food into energy
Stomata - Answer -pours in leaves that open and close to allow for water transportation
Xylem - Answer -transportation for the water and minerals throughout the tree
Phloem - Answer -Conducts Carbohydrates
Osmosis - Answer -Process how water enters roots
Organic Matter - Answer -organic components that are decaying matter to help increase water holding &
nutrients to improve soil structure
Cation Exchange Capacity (CEC) - Answer -measure of soils capacity to attract, retain & exchange a
positive charge
Correctly
Chlorophyll - Answer -Makes the color or the leaves green so photosynthesis can take place
Transpiration - Answer -loss of water vapor from leaves
Bark - Answer -protects branches & trunk of tree from injury
Excurrent Growth - Answer -Orientation of growth in external cell
M.A.D.HORSE - Answer -Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT
pH - Answer -Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral
Decurrent Growth - Answer -rounded or broader tree growth
Deciduous - Answer -loss of leaves in the fall
Respiration - Answer -process of converting food into energy
Stomata - Answer -pours in leaves that open and close to allow for water transportation
Xylem - Answer -transportation for the water and minerals throughout the tree
Phloem - Answer -Conducts Carbohydrates
Osmosis - Answer -Process how water enters roots
Organic Matter - Answer -organic components that are decaying matter to help increase water holding &
nutrients to improve soil structure
Cation Exchange Capacity (CEC) - Answer -measure of soils capacity to attract, retain & exchange a
positive charge
