ISA Certified Arborist Exam Questions and Verified Answers

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