ISA Certified Arborist Exams Complete Winter 2025 A+ Guide.
Chlorophyll - (answers)Makes the color or the leaves green so photosynthesis can take place
Transpiration - (answers)loss of water vapor from leaves
Bark - (answers)protects branches & trunk of tree from injury
Excurrent Growth - (answers)Orientation of growth in external cell
M.A.D.HORSE - (answers)Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT
pH - (answers)Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral
Decurrent Growth - (answers)rounded or broader tree growth
Deciduous - (answers)loss of leaves in the fall
Respiration - (answers)process of converting food into energy
Stomata - (answers)pours in leaves that open and close to allow for water transportation
, Xylem - (answers)transportation for the water and minerals throughout the tree
Phloem - (answers)Conducts Carbohydrates
Osmosis - (answers)Process how water enters roots
Organic Matter - (answers)organic components that are decaying matter to help increase water
holding & nutrients to improve soil structure
Cation Exchange Capacity (CEC) - (answers)measure of soils capacity to attract, retain &
exchange a positive charge
Girdling Roots - (answers)roots that grow across or around the trunk, potentially choking off
vascular tissues in a tree. May cause decline or death
Taxonomy - (answers)Classification of plants
Levels of Classification - (answers)Kingdom > Phylum > Class > Order > Family > Genus >
Species > Specific epithet
Angiosperm - (answers)flowering plant
Gymnosperm - (answers)Cone bearing plants and gingco
Cultivar - (answers)Cultivated Variety for a tree/shrub
Monocot - (answers)one seed leaf
Drill Hole Method - (answers)aerates the soil 2-4 inches into ground around drip line and uses
granular fertilizer.
Chlorophyll - (answers)Makes the color or the leaves green so photosynthesis can take place
Transpiration - (answers)loss of water vapor from leaves
Bark - (answers)protects branches & trunk of tree from injury
Excurrent Growth - (answers)Orientation of growth in external cell
M.A.D.HORSE - (answers)Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT
pH - (answers)Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral
Decurrent Growth - (answers)rounded or broader tree growth
Deciduous - (answers)loss of leaves in the fall
Respiration - (answers)process of converting food into energy
Stomata - (answers)pours in leaves that open and close to allow for water transportation
, Xylem - (answers)transportation for the water and minerals throughout the tree
Phloem - (answers)Conducts Carbohydrates
Osmosis - (answers)Process how water enters roots
Organic Matter - (answers)organic components that are decaying matter to help increase water
holding & nutrients to improve soil structure
Cation Exchange Capacity (CEC) - (answers)measure of soils capacity to attract, retain &
exchange a positive charge
Girdling Roots - (answers)roots that grow across or around the trunk, potentially choking off
vascular tissues in a tree. May cause decline or death
Taxonomy - (answers)Classification of plants
Levels of Classification - (answers)Kingdom > Phylum > Class > Order > Family > Genus >
Species > Specific epithet
Angiosperm - (answers)flowering plant
Gymnosperm - (answers)Cone bearing plants and gingco
Cultivar - (answers)Cultivated Variety for a tree/shrub
Monocot - (answers)one seed leaf
Drill Hole Method - (answers)aerates the soil 2-4 inches into ground around drip line and uses
granular fertilizer.
