EXAM QUESTIONS AND ANSWERS
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Independent Variable - ✔✔the variable that I change in the experiment
Dependent Variable - ✔✔the variable that I am measuring (it depends on the
independent variable)
Control Variable - ✔✔variable that stay the same
Controlled experiment - ✔✔an experiment in which only one variable is changed at a
time
Hypothesis - ✔✔an educated guess (If..., then...)
Carbohydrates 1 - ✔✔C, H, O
Sugars & starches
Main source of energy for living things
Structural support for plants
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, Glucose
Fructose
Glycogen
Lipids - ✔✔C, H
Fatty acid & glycerol
Store energy for living things
Compose bi-layer in all cell membranes
Leaves translucent spots on paper
Steroids = chemical messengers
Fats
Oils
Waxes
Proteins - ✔✔C, H, O, N
Amino Acids
Regulate cell processes.
Form bones & muscle.
Transport substances in & out of cells.
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