2023 ISA Certified Arborist Exam
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 Girdling Roots - ANSWER-roots that grow across or around the trunk, potentially choking off vascular tissues in a tree. May cause decline or death
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