ISA Certified Arborist Exam
QUESTIONS & VERIFIED
ANSWERS
Makes the color or the leaves green so photosynthesis can take place - correct answer
✔✔Chlorophyll
loss of water vapor from leaves - correct answer ✔✔Transpiration
protects branches & trunk of tree from injury - correct answer ✔✔Bark
Orientation of growth in external cell - correct answer ✔✔Excurrent Growth
Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT - correct answer ✔✔M.A.D.HORSE
Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral - correct answer ✔✔pH
rounded or broader tree growth - correct answer ✔✔Decurrent Growth
, loss of leaves in the fall - correct answer ✔✔Deciduous
process of converting food into energy - correct answer ✔✔Respiration
pours in leaves that open and close to allow for water transportation - correct answer
✔✔Stomata
transportation for the water and minerals throughout the tree - correct answer ✔✔Xylem
Conducts Carbohydrates - correct answer ✔✔Phloem
Process how water enters roots - correct answer ✔✔Osmosis
organic components that are decaying matter to help increase water holding & nutrients to
improve soil structure - correct answer ✔✔Organic Matter
measure of soils capacity to attract, retain & exchange a positive charge - correct answer
✔✔Cation Exchange Capacity (CEC)
roots that grow across or around the trunk, potentially choking off vascular tissues in a tree.
May cause decline or death - correct answer ✔✔Girdling Roots
Classification of plants - correct answer ✔✔Taxonomy
Kingdom > Phylum > Class > Order > Family > Genus > Species > Specific epithet - correct answer
✔✔Levels of Classification
QUESTIONS & VERIFIED
ANSWERS
Makes the color or the leaves green so photosynthesis can take place - correct answer
✔✔Chlorophyll
loss of water vapor from leaves - correct answer ✔✔Transpiration
protects branches & trunk of tree from injury - correct answer ✔✔Bark
Orientation of growth in external cell - correct answer ✔✔Excurrent Growth
Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT - correct answer ✔✔M.A.D.HORSE
Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral - correct answer ✔✔pH
rounded or broader tree growth - correct answer ✔✔Decurrent Growth
, loss of leaves in the fall - correct answer ✔✔Deciduous
process of converting food into energy - correct answer ✔✔Respiration
pours in leaves that open and close to allow for water transportation - correct answer
✔✔Stomata
transportation for the water and minerals throughout the tree - correct answer ✔✔Xylem
Conducts Carbohydrates - correct answer ✔✔Phloem
Process how water enters roots - correct answer ✔✔Osmosis
organic components that are decaying matter to help increase water holding & nutrients to
improve soil structure - correct answer ✔✔Organic Matter
measure of soils capacity to attract, retain & exchange a positive charge - correct answer
✔✔Cation Exchange Capacity (CEC)
roots that grow across or around the trunk, potentially choking off vascular tissues in a tree.
May cause decline or death - correct answer ✔✔Girdling Roots
Classification of plants - correct answer ✔✔Taxonomy
Kingdom > Phylum > Class > Order > Family > Genus > Species > Specific epithet - correct answer
✔✔Levels of Classification
