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32 Cards in this Set
- Front
- Back
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Root hairs |
Where plant absorbs water and nutrients. Lives 2-3 days. |
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Zone of elongation |
Where new cells get larger |
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Cuticle |
Waxy coating, made by epidermis. Not alive. For protection. |
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Palisade layer |
Layer of tightly spaced, elongated cells lying under the upper epidermis of leaves. Makes plant food. |
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Xylem |
Water and nutrients move up |
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Young root tip |
Roots |
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Cross Section of Leaf |
Know these |
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Spongy cells |
Make plant food. Create spaces to hold supplies for food making and for food recently made. |
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Guard cells |
Epidermal cells that surround a stomate and control its aperture. |
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Epidermis |
Outer skin, single layer clear cells, packed tightly. For protection. |
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Vascular bundle |
Vascular system= plant plumbing |
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Intercellular space |
Permits free movement |
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Stomate (opening) |
Where water vapor leaves the plant |
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3 Jobs of the root |
Communication in soil Stabilize and anchor plant Stores food |
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phloem |
Food flows down in phloem sinks drive where plant food travels=plant parts that need food |
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cambium |
vascular cambium- meristem makes new xylem and phloem and itself |
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5 functions of leaves |
Absorb light energy Shade Make plant food- photosynthesis Store plant food Do gas exchange |
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Purpose of the leaf epidermis |
Protection |
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Stolon |
Above ground, horizontal stem that roots at the nodes and steals space. Ex. Bermuda grass |
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Runners |
Above ground, horizontal stem that forms a new plant at the tip. Ex. Strawberry, spider plant |
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True bulb |
Below ground, compressed stem surrounded by fat leaf scales. Ex. tulip, onion |
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Rhizome |
Horizontal stem, more or less below ground. May be thin and cord-like thickened. Leaves arise from the top and roots from the bottom. Ex. Iris, Bamboo |
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Stem Tuber |
Swollen, below ground stem Ex. Potato |
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Corm |
Below ground, compressed stem with stored plant food attached. Each year the food is used for growth, than more is stored. Ex. Crocus, Gladiolus |
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apical bud |
The boss bud. It produces hormones that prevent buds below from growing. |
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axillary bud |
Defines the beginning of a leaf. |
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Internode |
Part of a stem between nodes, where no leaves, buds or branches are attached. |
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Larger buds |
Usually contain flowers, not leaves |
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Lenticels |
'Warts' in stems, for gas exchange |
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Meristem |
Areas of a plant where growth can occur |
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Node |
Where something is attached to a stem |
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Terminal bud scale scar |
Left when scales fall off as growth begins. We use them to determine how much a deciduous, woody stem grew. |
