Term
| What are two important characteristics seed plants share? |
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Definition
| They have vascular tissue and they use pollen and seeds to reproduce. |
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Term
| Describe the difference between the way water and food (sugar) move through the plant. |
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Definition
Water moves through a plant through vascular tissue called the xylem.
Food moves through a plant through vascular tissue called phloem. |
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Term
| Describe the functions of a plant's roots. |
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Definition
They anchor a plant in the ground, absorb water and minerals from the soil, and sometimes store food.
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Term
| Describe the functions of a plant's stems. |
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Definition
| The stem carries substances between the plant's roots and leaves, and also provides support for the platns and holds up the leaves so they are eposed to the sun. |
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Term
| Describe the function of the plant's leaves. |
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Definition
| Leaves capture the sun's energy and carry out the food making process of photosynthesis. |
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Term
| Describe the life cycle of a gymnosperm. |
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Definition
| A pine tree produces male and female cones. A male cone produces pollen grains, which mature into sperm cells. Pollen falls off from a male cone and attaches to a sticky substance on the female cone through a process called pollination. After pollination, a sperm cell and an egg cell join together in an ovule. The ovule closes and fertilization occurs. After fertilization occurs, the egg develops into the embryo part of the seed. Wind disperses the seed which then grows into a seedling and then into a new tree. |
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Term
| Describe the life cycle of an angiosperm. |
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Definition
| Pollen falls on a flower's stigma. The sperm cell and egg cell join together in the flower's ovule through pollination. The fertilized egg, called a zygote, develops into the embryo part of the seed. |
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Term
| Describe the functions of a flower's petals. |
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Definition
| They are the most colorful parts of a flower, and vary greatly in shape, size and number. |
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Term
| Describe the functions of flower's sepals. |
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Definition
| It is a leaflike structure that encloses a flower bud. It protects the developing flower and is often green in color. |
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Term
| Describe the function of a flower's stamen. |
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Definition
| The stamen is the male reproductive part of a flower. It is made up of 2 parts - the anther and the filament. |
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Term
| Describe the function of the flower's pistil. |
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Definition
| It is the female reproductive part of a flower. It is found in the center of most flowers. It is made up of three parts - the stigma, the style and the ovary. |
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Term
| Describe Monocots in terms of their seeds, leaves, stems and flowers. |
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Definition
| Monocots are angiosperms that have only one cotyledon, parallel veins on a leaf, bundles of vascular tissue scattered throughout the stem and their flower parts are in threes. |
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Term
| Describe dicots in terms of their seeds, leaves, stem and flowers. |
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Definition
| Dicots have two cotyledons, branching veins on their leaves, bundles of vascular tissue arranged in a ring, and flowering parts of four or five. |
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Term
| Describe three stimuli plants respond to. |
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Definition
| Touch, light, and gravity. |
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Term
| How do short day plants and long day plants differ? |
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Definition
Short day plants flower when nights are longer than a critical length.
Long day plants flower when nights ar shorter than a critical length. |
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Term
| How long does an annual plant live? |
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Definition
| It completes its life cycle in one year. |
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Term
| How long does a biennial plant live? |
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Definition
| It completes its life cycle in 2 years. |
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Term
| How long does a perennial plant live? |
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Definition
| Perennial plants live for many years. |
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Term
| Name three types of technological farming. |
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Definition
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