Term
| What is the feature that distinguishes plants from other photosynthetic organisms? |
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Definition
| the presence of multicellular embryos |
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Term
| What is the role of chlorophyll in plants? |
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Definition
| Chlorophyll captures solar energy to produce plant energy. |
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Term
| Which of the following best describes "alternation of generations" at the cellular level? |
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Definition
| Separate diploid and haploid generations alternate with one another through the life cycle. |
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Term
| Certain cells of sporophytes undergo meiosis to produce haploid reproductive cells called _____. |
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Definition
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Term
| Assume that you are a laboratory assistant in a plant laboratory studying reproduction in plants. You have identified some haploid cells that were formed by mitosis, and have shown that they cannot develop into a new individual. What are they? |
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Definition
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Term
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Definition
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Term
| In plants, the diploid, multicellular organism is the: |
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Definition
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Term
| In plants, the haploid, multicellular organism is the: |
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Definition
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Term
| What is the reason that all life on land depends on plants? |
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Definition
| Plants are able to manufacture food from sunlight. |
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Term
| Green plants are able to convert water and carbon dioxide into sugar and store it as _____. |
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Definition
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Term
| What are the products of photosynthesis? |
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Definition
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Term
| The ancestors of modern plants were probably aquatic. What is an important advantage of being aquatic? |
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Definition
| access to nutrients in solution, supported by buoyancy, is not likely to dry out. also, life in water facilitates reproduction, because gametes (sex cells) and zygotes (fertilized sex cells) can be carried by water currents or propelled by flagella |
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Term
| Stomata are pores found in the leaves and stems of plants. What is their purpose? |
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Definition
| Stomata open to allow gas exchange and close to prevent the loss of water. |
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Term
| As plants moved from water onto land, how were they able to compensate for the lack of water? |
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Definition
| They evolved conducting cells to transport nutrients and water to all parts of the plant. |
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Term
| Pollen and seeds evolved in response to: |
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Definition
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Term
| To limit water loss, land plants developed: |
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Definition
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Term
| To strengthen the conducting cells and help plants stand erect without water for them to float in, land plants developed: |
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Definition
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Term
| In mosses gametes are produced by _____; in ferns gametes are produced by _____. |
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Definition
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Term
| Where do fern antheridia develop? |
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Definition
| on the underside of the gametophyte |
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Term
| The conspicuous part of a fern plant is a _____. |
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Definition
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Term
| Which of the following is considered to be a vascular plant? |
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Definition
| ferns, conifers, flowering plants |
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Term
| Which of these characteristics is shared by algae and seed plants? |
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Definition
| cell walls and chloroplasts |
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Term
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Definition
| extensive deposits of dead Sphagnum, a moss, formed because it decomposes slowly in cool climates and inhibits bacterial decomposition. |
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Term
| Which of the following describes the way a seedless vascular plant reproduces? |
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Definition
| They propagate by producing spores. They do not produce seeds or pollen as the seed plants do. |
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Term
| Pollen grains are dispersed by wind or animals to fertilize egg cells. Why is this an advantage? |
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Definition
| Water is not needed for sperm to swim to the egg. |
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Term
| Which of the following represents the sporophyte in the life cycle of a pine tree? |
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Definition
| the tree itself. The tree is a diploid sporophyte that develops both male and female cones. |
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Term
| What is the purpose of seeds in an angiosperm maturing in fruit? |
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Definition
| to entice an animal to eat the fruit and consequently disperse the seeds in the fruit |
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