REVIEW!!!!!!!!!!

 The CELL THEORY:
– All living things are made of cells.
– Cells come from pre-existing cells.
– Cells are the basic unit of structure and function in all living organisms.

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Cell Wall provides support and protection.
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Cell Membrane is located within cell wall and encloses all organelles and cytoplasm.

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The Cell Membrane is selectively permeable allowing specific nutrients and waste in and out of cell.
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Composed of three organic molecules; carbohydrates, proteins and lipids.

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Mitochondria
– aids in cellular respiration, produces energy “ATP”.
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Ribosomes
– aids in protein synthesis.
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Vacuoles
– Storage of wastes (small found in animal cell, while large is found in Plant cell only!)

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Centrioles
– aids in cell reproduction, found only in Animal Cells.
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Chloroplasts
– aids in photosynthesis, found in Plant Cells only.
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Cytoplasm
– Fluid substance that all organelles exist in.
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Nucleus - contains DNA.

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Diffusion
– movement of high concentration to low concentration.
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Active Transport
– movement of low concentration to high concentrations.
Moves against the concentration gradient.
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Osmosis
– diffusion of water.

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Contains Carbon and Hydrogen
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Examples are: Carbohydrates (Sugars,
Glucose), Proteins , Lipids (Fats) and
Nucleic Acids (RNA & DNA).
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Make up all cell walls and membranes.

1.
2.
3.
4.
State the Problem;
How, Why, What?
Research/Inferences
Form a Hypothesis; create a statement.
If….then..
Develop a controlled experiment. Only one variable is being tested.
5. Analysis of Data – read and interpret charts, graphs and written findings.
6. Formulate
Conclusion- no summary, state if hypothesis is proven or not.

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Label axes with units.
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Figure out an appropriate scale; the spacing between numbers on axes must be in equal increments.
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Independent variable ; factor that influences the dependent variable, always on the xaxis.
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Dependent variable ; what you are measuring, always on y-axis.