ARBORIST EXAM SCRIPT 2 191 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ 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
◉ Girdling Roots. Answer: roots that grow across or around the
trunk, potentially choking off vascular tissues in a tree. May cause
decline or death
QUESTIONS WITH SOLUTIONS GRADED A+
◉ 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
◉ Girdling Roots. Answer: roots that grow across or around the
trunk, potentially choking off vascular tissues in a tree. May cause
decline or death
