ISA Certified Arborist Exam Questions & Answers

Chlorophyll - ANSWERSMakes the color or the leaves green so photosynthesis can take place Transpiration - ANSWERSloss of water vapor from leaves Bark - ANSWERSprotects branches & trunk of tree from injury Excurrent Growth - ANSWERSOrientation of growth in external cell M.A.D.HORSE - ANSWERSOpposite leaf arrangement MAPLE ASH DOGWOOD HORSECHESTNUT pH - ANSWERSMeasure of acidity or alkaline from 0 to 14 7 acidic 7 Alkaline 7 Neutral Decurrent Growth - ANSWERSrounded or broader tree growth Deciduous - ANSWERSloss of leaves in the fall Respiration - ANSWERSprocess of converting food into energy Stomata - ANSWERSpours in leaves that open and close to allow for water transportation Xylem - ANSWERStransportation for the water and minerals throughout the tree Phloem - ANSWERSConducts Carbohydrates Osmosis - ANSWERSProcess how water enters roots Organic Matter - ANSWERSorganic components that are decaying matter to help increase water holding & nutrients to improve soil structure Cation Exchange Capacity (CEC) - ANSWERSmeasure of soils capacity to attract, retain & exchange a positive charge Girdling Roots - ANSWERSroots that grow across or around the trunk, potentially choking off vascular tissues in a tree. May cause decline or death Taxonomy - ANSWERSClassification of plants Levels of Classification - ANSWERSKingdom Phylum Class Order Family Genus Species Specific epithet Angiosperm - ANSWERSflowering plant Gymnosperm - ANSWERSCone bearing plants and gingco Cultivar - ANSWERSCultivated Variety for a tree/shrub Monocot - ANSWERSone seed leaf Drill Hole Method - ANSWERSaerates the soil 2-4 inches into ground around drip line and uses granular fertilizer. Surface Application - ANSWERSapplied fertilizer over surface using spreader Apical Meristems - ANSWERSlocated at the end of the shoot Apical Dominance - ANSWERStendency for terminal buds to inhibit growth of lateral buds CODIT - ANSWERSCompartmentalization Of Decay In Trees or 4 Steps trees use to heal itself from decay Photosynthesis - ANSWERSprocess that a tree/plant uses to create food/energy Leaves - ANSWERSFood factories Cambium - ANSWERSlayer of cells located between the phloem & xylem Urea-formalehyde - ANSWERSslow, soluble, synthetic fertilizer