Term 1 Test

what is the dependent variable

• changes because of the experiment, “Results”- what is measured

• what is intentionally changed in experiment

• intentionally kept the same in all trials (constants)

what is the independent variable

• changes because of the experiment, “Results”- what is measured

• what is intentionally changed in experiment

• intentionally kept the same in all trials (constants)

what is the controlled variable

• changes because of the experiment, “Results”- what is measured

• what is intentionally changed in experiment

• intentionally kept the same in all trials (constants)

why is it important Controlled experiment

• in a controlled area

• only has one IV - allows for comparison

• no changes

common elements found in living things

which of following aren't a characteristic for carbon that is essential for living things

• carbon can bond with many different elements (CHONPS)

• small and can squeeze through the cell membrane

• carbon can form 4 bonds

• can bond to itself to make various shapes (chains or rings)

• can form single, double, or triple bonds

molecule (protein) that controls a chemical reaction and lowers the activation energy required to start it.

which of follow isn't an enzyme like a lock and key

• specific shape to molecules

• complex shape

• like a door

• reusable

• if shape is changed loses function

what happens if an enzyme isn't in it's optimal condition

• slows down or stops

• changes in PH and Tempature

• denatures

• NOTHING

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