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| defined as a body of knowledge that is systematically derived from study, observations, experimentation. |
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a belief that is not warranted:
i.e witchcraft, alien encounters...etc |
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| accepted worldwide and allows easier comparison amongst experiments done by scientist around the world. |
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an important skill to visually display collected data for analysis. excellent way of communicating experimental results.
ie. line graph and bar graph |
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| show two variables represented by one point on the graph |
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| set up similarly in regards to axes, but points are not plotted. |
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| grouping of items according to their similarities. |
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basic process behind science
posing a question
form a hypothesis
doing the test observe and record
drawing a conclusion |
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composed of sections:
title
abstract
purpose
hypothesis
control
observations and results
conclusion |
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| explanation of a set of related observations based on a proen hypothesis |
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uses principals of capillary action to separate substances such as plant pigments.
[laboratory techniques and technology] |
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uses percent light absorbance to measure a color change thus giving qualitative data a quantitative value
[laboratory techniques and technology] |
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involves spinning substances at a high high speed. use to separate blood into blood cells and plasma, with the heavier blood cells settling to the bottom.
[laboratory techniques and technology] |
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uses electrical charges of molecules to separate them according to their size.
[laboratory techniques and technology] |
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improved our ability to communicate
ie. sonar uses sound waves to locate objects and is especially useful underwater.
[laboratory techniques and technology] |
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greatly improved the collection and interpretation of scientific data
[laboratory techniques and technology] |
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| the act of hands on learning of animals. formaldehyde is a carcinogen and should be avoided or disposed. |
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| no dissections may proformed living mammalian vertebrates or birds |
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| pathogenic organisms must never be used for experimentation |
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| uses hot plates whenever possible to avoid burns and fires |
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| used for precise measurements. they should always be placed on a flat surface. the measurement is read at the bottom of this curve |
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| electronic balances are easier to use but are more expensive. should always be used on a flat surface and tarred (returned to zero) before measuring. the total mass is the total of all readings on the beams. |
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| used to dispense precisely measured volumes of liquids. |
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| commonly used in laboratory experiments. uses slides. |
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| work together to provide life for the organism |
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______ _____ are made of cells[such as grow, capable of reproducing]
they adapt to environmental changes or perish.
carry on metabolic processes [they use and make energy] |
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brain of the cell
[part of Eukaryotic cell] |
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DNA, RNA tightly coiled to conserve spacewhile providing a large surface area.
[found in nucleus] |
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loose structure of chromosomes. cells not dividing.
[found in the nucleus] |
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where ribosomes are made. seen as dark spots in the nucleus.
[found in the nucleus]
[found in the nucleous] |
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contains pores which let RNA out of the nucleus. it is continuous with the endoplasmic reticulum which allows the membrane to expand or shrink if needed.
[found in the nucleus] |
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site of protein synthesis. may be free floating in the cytoplasm or attached to the endoplasmic reticulum.
[part of Eukaryotic cell] |
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the "roadway" of the cell and allow for transport of materials. capable of building new membrane material.
[part of Eukaryotic cell] |
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smooth endoplasmic reticulum
7.1 |
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contain no ribosomes on their surface.
[part of endoplasmic reticulum] |
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rough endoplasmic reticulum
7.1 |
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contain ribosomes on their surface. is abundant in cells that make many proteins.
part of endo plasmic reticulum] |
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Golgi complex/Golgi apparatus
7.1 |
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stacked to increase surface area. functions to sort, modify and package molecules that are made in other parts of the cell.
[part of Eukaryotic cell] |
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mainly in animal cells. they contain digestive enzymes that break down food, substances not needed, viruses, damaged cell components, and eventually the cell itself.
[part of Eukaryotic cell] |
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large organelles that make ATP to supply energy to the cell. they have their own DNA and are capable of reproducing themselves. found only in animal cells.
[part of Eukaryotic cell] |
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found in photosynthetic organisms only. similar to mitochondria.
[part of Eukaryotic cell] |
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green and function in photosynthesis. capable of trapping sunlight.
[part of plastids] |
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make and store yellow and orange pigments; they provide color to leaves, flowers, and fruits.
[part of plastids] |
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store starch and are used as food reserve. abundant in roots like potatoes.
[part of plastids] |
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found in plant cells only. cell walls are cemented to each other.
[part of Eukaryotic cell] |
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| hold stored food and pigments. |
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