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Chp 5 Science859
Question | Answer |
---|---|
Epidermis- | the thin outer layer of cells. |
Xylem- | moves water and minerals to other parts of a plant. |
Phloem- | carries sugars made in the leaves throughout the plant. |
Stoma- | small holes that water and gases pass in and out of the plant through. |
Guard Cells- | work together to open and close a leaf's stoma. |
Transpiration- | loss of water from the leaf. |
Some plants have one large root called a what with many roots growing out from it? | taproot |
Carrots are what that store extra food made by the plant? | taproots |
Carrots are what that store water? | roots |
Describe 2 functions of stems in flowering plants. | Stems provide support for the plant as it grows. The stems also have xylem and phloem which move water, minerals, and glucose throughout the plant. |
Plants with stems that are green and easy to bend are called what? | herbaceous |
What opens and closes a leaf's stoma? | Guard Cells |
Photosynthesis- | process through which plants make glucose. |
Cellular Respiration- | process by which cells break down glucose with the release of energy. |
During photosynthesis plants use what to make glucose and oxygen? | light energy from the sun, carbon dioxide from the air, and water |
Cuticle- | waxy layer that may cover a leaf and slow water loss. |
A mitochondrion releases energy and is called the what? | powerhouse of a cell |
Describe the carbon dioxide-oxygen cycle and explain how it benefits both plants and animals. Use the terms photosynthesis and cellular respiration in your answer. | Photosynthesis uses the sun, carbon dioxide, and water to make glucose and oxygen. Cellular respiration uses oxygen to break down glucose. This provides energy for the plant. Animals exhale carbon dioxide, which provides the plant with what it needs to pr |
Tropism- | plant behavior caused by growth toward or away from something in the environment. |
Some seed plants called what produce flowers? | Angiosperms |
Most seeds develop into what? | a fruit |
After fertilization the female cone closes up and what? | seeds grow within it |
Compare and contrast a spore and a seed. | Spores contain a single cell that grows into a new plant and a seed contains a multicellular embryo that develops into a new plant. |
How does the environment influence the time at which a seed germinates? How does this help the seed to survive? | Seeds need a certain temperature, water and oxygen. If the environment is not right the seeds won't germinate and the embryo stays inside the seed. |
Plant behavior can result from what the plants make? | chemicals |
Gravitropism is a plant's response to gravity to which roots grow down and stems grow up.What are the other 2 examples of tropism? | Phototropism is a response to light in which stems bend toward light and roots bend away from light. Thigmotropism is a response to touch. Some plants grow toward the surface they touch. |