Arborist Certification Study Guide
Meristem - Answer- Sites of rapid cell division in the shoot tips, root tips, and cambium. Apical meristem - Answer- Meristems located at the end of the shoot are called primary, or _________ meristems Scales - Answer- Buds are covered by _____________ that leave permanent scars on the twig when the buds break dormancy. These scars can be useful in tree ID. Apical dominance - Answer- The tendency for terminal buds to inhibit the growth of lateral buds is called ______________. Leaves - Answer- The food factories of trees are the ____________. Photosynthesis & Oxygen - Answer- The process of _____________ combines carbon dioxide and water in a reaction driven by light to produce sugars. _________ is also a product of this reaction. Chlorophyll - Answer- The green color of leaves is created by the presence of _____________, which is necessary for photosynthesis to take place. Transpiration - Answer- ___________ is the loss of water vapor from the leaves. Stomata & Guard Cells - Answer- The opening and closing of _________ allows for gas exchange, and transpiration is controlled by the ___________. Xylem & Phloem - Answer- Water and dissolved essential minerals are transported within the tree in the ___________. The ____________ conducts carbohydrates. Cambium - Answer- The ______________ is a layer of meristematic cells located between the phloem and the xylem. Branch collar & Branch bark ridge - Answer- The ______ ________ is formed when trunk tissue grows around branch tissues. As the branch and trunk tissues expand against each other in the crotch, the __________ ______ ________ is formed. Bark - Answer- ___________ protects the branches and trunk of a tree from mechanical injury and desiccation. Absorption, conduction, anchorage, and storage. - Answer- Name four functions of the root system
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