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Definition
| the tubes in plant stems that transport water and minerals in vascular plants |
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| the tubes in plant stems that transport food in the vascular plants |
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| a pigment, or coloring matter, that helps plants use light energy to produce sugars |
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| a term for plants that do not have xylem and phloem. they can move water, minerals and food only from one cell to the next. This is why they are small. |
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| term that describes a plant with xylem and phloem. They are able to grow larger than nonvascular plants. |
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| a single reproductive cell that grows into a new plant in nonvascular plants |
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| plant with unprotected seeds; conifer or cone-bearing plant |
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| flower structures that contain the male reproductive cells |
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| the seed of certain plants |
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| any material that can be separated into threads |
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| Name the two type of tubes that transport materials in plant stems. |
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Definition
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| What are called the "food factories" of plants? |
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Definition
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| Why are the parts of some plants very different from those of other plants? |
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Definition
| Plants are able to live in different environments because their roots, stems and leaves are adapted to the environments in which they live. |
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Definition
| it is a single, thick root that grows straight down. They can reach water that is deep in the ground. |
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Definition
| roots that form a thick and tangled mat just under the surface of the soil. They help prevent soil erosion because they anchor the soil as well as the plant. |
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| Why do leaves change color in the fall? |
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Definition
| The days grow shorter and so there is less chlorophyll to give the leaves their green color. It is not due to frost. |
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Term
| What are the two major groups of plants and how are they different? |
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Definition
nonvascular - does not have xylem or phloem, doesn't flower, is smaller, and they reproduce with spores
vascular - has xylem and phloem, grow larger, many flower, reproduce with male and female cells |
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Term
| How do simple vascular plants reproduce? |
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Definition
| They produce male and female reproductive cells, the united cell, called a zygote, divides and grows into a separate spore-producing plant. |
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Term
| What are the two types of see-producing vascular plants and what is the difference? |
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Definition
gymnosperms - with unprotected seeds
angiosperms - produce seeds protected by some type of fruit |
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Term
| What type of plant accounts for nearly all the food that people eat? |
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Definition
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Term
| How are gymnosperms pollinated? |
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Definition
| Wind carries pollen from the male cones to the female cones. |
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| How are angiosperms pollinated? |
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Definition
| they are pollinated by the wind, insects and other small animals |
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Term
| Which are important sources of wood, fiber and medicine? Angiosperms or gymnosperms? |
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Definition
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| Name some examples of the fruits produced by angiosperm to protect their seeds. |
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Definition
| Apples, oranges, tomatoes, peanuts, and acorns |
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Term
| How does a fruit protect the seeds inside? |
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Definition
1. it usually keeps birds and other animals from getting at them, even if they eat the outer part of the fruit
2. serves as a covering that protects the seed from cold weather
3. rottin fruit provides extra food for a new plant when it begins to grow |
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Term
| Describe the life cycle of the flowering plant (angiosperm). |
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Definition
| It starts as an embryo inside a seed. Then the embryo grows into a seedling. Then the seedling grows and matures and flowers. Then each flower produces seeds inside a fruit like covering. |
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Term
| How are the life cycle of a flowering plant similar to that of an animal? |
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Definition
| They both have an embryo stage. They both have male and female reproductive cells. They both look more like their parents the more they grow and mature. They both go through several divverant stages in their life cycles. |
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Term
| How do conifers produce seeds? |
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Definition
| Conifers produce both male and female cones on the same tree. Male cones produce pollen which is carried to the female cones by the wind. The male and female reproductive cells unite into a zygote. The zygotes then divide and grow into seeds. |
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Term
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Definition
| Ferns produce both male and female reproductive cells. The united cell, called the zygote, then divides and grows into a separate spore-producing plant. |
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Term
| Name the plant parts that people eat. |
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Definition
| Leaves, seeds, fruit, stems, flowers, and roots |
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Term
| What did people do before aspirin was invented? |
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Definition
| They chewed on the bark of the willow tree. |
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| Name some products made from trees. |
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Definition
| paper, furniture, homes, musical instruments |
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| What percentage of the medicines we use come from plants? |
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Definition
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| The aloe plant is used to make what products. |
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Definition
| skin creams, makeup, shampoos, soaps, and sunscreen |
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| What forms the largest part of the food pyramid? |
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Definition
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| What forms the second largest part of the food pyramid? |
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Definition
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| What are the two groups of seed-producing plants? |
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Definition
gymnosperms - unprotected seeds
angiosperms - protected seeds |
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Term
| Why are most leaves thin and flat? |
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Definition
| It helps them to make food. |
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Term
| Why are nonvascular plants limited in size? |
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Definition
| Because they have to pass water and minerals from one cell to thenext. |
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Term
| Why are bright, large, colorful leaves beneficial to the plant? |
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Definition
| They attracct insects and birds that spread pollen. |
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Term
| In order to eat a more healthful diet, should you eat foods closer to the top of the food pyramid or closer to the bottom? |
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Definition
| Closer to the bottom because grains make up the bottom, or largest part and directly above that are the fruits and vegetables. |
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Term
| In what way are fruits better than cones for carrying seeds? |
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Definition
| Fruits provide protection for the seeds and give them a better chance of survival. If they are rotting, they also provide food for the growing seed. |
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Term
| Coud a plant live if all its leaves were cut off? |
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Definition
| No because leaves are responsible for making the food. |
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Term
| What are the 3 main parts of a plant and what is their purpose? |
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Definition
roots - anchor a plant and take in minerals and water from the soil
stem - supports a plant and moves materials between its parts
leaves - make the plant's food |
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Term
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Definition
| tiny holes in a leaf where carbondioxide enters and oxygen exits |
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Definition
| a plant part that holds the plant up and carries food and water to other plant parts |
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Definition
| tiny parts of roots that take in water and minerals from the soil |
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Definition
| the parts in leaf cells where the food-making process takes place |
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Definition
| roots that begin above ground so they can keep trees growing in loose, wet soil from being blown over by the wind |
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Term
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Definition
| roots that begin above ground so they can keep trees growing in loose, wet soil from being blown over by the wind |
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