lab 2 exam

Meter

Base unit of length

Liter

Base unit of volume

Gram

Base unit of mass

Dependent Variable

Measured variable affected by the independent variable.

Independent Variable

Variable that stands alone, not affected by others

Spectrophotometer

Instrument to measure light absorption in samples.

Cuvette

Container for holding liquid samples in spectroscopy.

Pipette

Tool to transport measured liquid volumes.

Beaker

Container for mixing and heating liquids.

Micropipette

Tool for precise measurement of small liquid volumes.

Graduated Cylinder

Narrow container for measuring liquid volumes.

Centrifuge

Machine that separates substances by density.

Enzyme

Biological catalyst speeding up reactions.

Substrate

Reactant an enzyme acts upon.

Photosynthesis

Process plants use to convert sunlight into food.

Cellular Respiration

Process of converting glucose into energy.

Agar Gel Electrophoresis

Technique to separate DNA fragments by size.

Restriction Enzyme

Enzyme that cuts DNA at specific sites.

Chromatography

Method for separating compounds in a mixture.

Haploid

Cell with one set of chromosomes.

Diploid

Cell with two sets of chromosomes.

Chromatid

Half of a duplicated chromosome.

Chromosome

Structure carrying genetic information.