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10 Cards in this Set

  • Front
  • Back
What is an experimental unit? Explain...
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
Scientists involved with Scientific Method & examples...
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.
Summarize the sceintific method
1 - Make observations
2- Ask ? s about whats observed.
3 - propose possible, answers.
4- Testing how well those answers are supported by facts.
What does "science" deal with?
science deals with matter and energy. Physical phenomena, and so we cant work with it.
The pericycle gives rise to what?
lateral roots or branch roots.
what is the main function of the endodermis?
It regulates the flow of substances between the cortex and vascular tissue.
How do bracnch roots form?
They originate and form from the pericycle and push out through the cortex and epidermis.
What surrounds 4 of the 6 sides of an endodermal cell?
Casparaian strip composed of suberin and lignin.
What is the function of the casparian strip?
Forces water and minerals to pass across cell membranes instead of through the cell wall.
where are casparian strips located and function?
at root hairs where there is much nutrient absorption!