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28 Cards in this Set
- Front
- Back
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Sites of rapid cell division in the shoot tips, root tips, and cambium are called ___________. |
Meristems |
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Meristems at the end of the shoots are called primary, or ___________ meristems. |
Apical |
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The tendency for terminal buds to inhibit the growth of lateral buds is called ______ _________. |
Apical dominance |
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The "food factories" of trees are the __________. |
Leaves |
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The process of ________ combines CO2 and water in a reaction driven by light to produce sugars. _________ is also a product of this reaction. |
Photosynthesis, oxygen |
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The green color of leaves is created by the presence of __________, which is necessary for photosynthesis to take place. |
Chlorophyll |
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___________ is the loss of water vapor through the leaves. |
Transpiration |
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The opening and closing of _________ allow for gas exchange, and transpiration is controlled by the ________ ________. |
Stomata, guard cells |
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Water and dissolved essential minerals are transported within the tree through the _________. The ___________ conducts carbohydrates. |
Xylem, phloem |
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The _________ is a layer of meristematic cells located between the phloem and the xylem. |
Cambium |
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The ________ _________ is formed when trunk tissue grows around branch tissues. As the branch and trunk tissues expand against each other in the branch union, the ________ _________ _________ is formed. |
Branch collar, branch bark ridge |
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__________ protects the branches and trunk of a tree from mechanical injury and desiccation. |
Bark |
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Name four functions of the root system. |
Absorption Conduction Anchorage Storage Hormone production |
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Water enters young roots or mycorrhizal roots through a process called ___________. |
Osmosis |
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The orientation of growth in response to an external stimulus is called ___________. Two examples are ______________ (toward light) and _____________ (by gravity). |
Tropism, phototropism, geotropism |
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CODIT stands for... |
Compartmentalization Of Decay In Trees |
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Trees with upright growth and a strong, central leader are said to exhibit __________ growth. More rounded trees, which are often broader than they are tall, have _________ growth habits. |
Excurrent, decurrent |
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Roots and fungi form _____________, which are a symbiotic relationship, aiding in the uptake of water minerals. |
Mychorrizae |
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The process by which chemical energy stored as sugar and starch is released is called _______________. |
Respiration |
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___________ is a chemical in plants that regulates their growth. |
Auxin |
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The waxy covering of the leaf is called the _____________. |
Cuticle |
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The _____________ is the stalk of the leaf. |
Petiole |
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The space between the nodes of a twig is called the ______________. |
Internode |
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____________ are small openings in stems for gas exchange. |
Lenticels |
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________ are cells that cross the phloem and xylem for radial transport. |
Rays |
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Absorbing roots are typically located within the upper _____ in (_____cm) of soil. |
12 in, 30 cm |
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Mature, green leaves that produce sugar are likely considered __________. |
Sources |
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_________ use more energy than they produce. |
Sinks |
