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10 Cards in this Set
- Front
- Back
What is an experimental unit? Explain...
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1) smallest possible division of material
that can have different experimental treatments (levels) 2) The physical unit which can be assigned at random to a treatment 3) The unit of statistical analysis |
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Scientists involved with Scientific Method & examples...
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1) Sir Francis Bacon -firm Beleiver in power of experimenattion. Bees pollinating Plants. Concluded plants produce sexually.
2 - Charles darwin - looked at if light makes plants grow. Covered leaves and flowers--> plant still grew. Covered apexesm and plants stop growing. |
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Summarize the sceintific method
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1 - Make observations
2- Ask ? s about whats observed. 3 - propose possible, answers. 4- Testing how well those answers are supported by facts. |
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What does "science" deal with?
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science deals with matter and energy. Physical phenomena, and so we cant work with it.
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The pericycle gives rise to what?
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lateral roots or branch roots.
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what is the main function of the endodermis?
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It regulates the flow of substances between the cortex and vascular tissue.
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How do bracnch roots form?
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They originate and form from the pericycle and push out through the cortex and epidermis.
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What surrounds 4 of the 6 sides of an endodermal cell?
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Casparaian strip composed of suberin and lignin.
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What is the function of the casparian strip?
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Forces water and minerals to pass across cell membranes instead of through the cell wall.
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where are casparian strips located and function?
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at root hairs where there is much nutrient absorption!
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