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Lab Midterm Biology

Lab Midterm Biology Terms

TermDefinition
Qualitative Data Data based on observations collected from an experiment, such as color.
Quantitative Data Measurable, numerical information collected from an experiment.
Accuracy The degree of closeness to the true value.
Precision The degree of closeness of all measures values to each other.
Crenation The process of animal cells getting smaller, and possibly becoming spikey or an irregular size.
Plasmolysis The process of a plant cell's internal membrane and cytoplasm shrinking.
Resolution The clarity of seeing two objects as distinctly separate under a microscope.
Magnification The apparent size of a specimen under a microscope.
Outlier A measurement that falls outside of two standard deviations from the mean.
Hydrophobic Molecules Molecules that are not capable of mixing with water.
Hydrophilic Molecules Molecules capable of mixing with water.
Diffusion The process in which molecules move from an area of high concentration to low concentration, using kinetic energy, to reach equilibrium.
Osmosis A specific type of diffusion that also uses kinetic energ to move water molecules from a high concentration to a low ceoncentration area, in order to reach equilibrium.
Turgor pressure Pressure exerted by fluid in a cell that presses the cell membrane against the cell wall.
Passive transport The transportation of molecules from a high concentration area to a lower concentration area through diffusion.
Functional Group A group of atoms in a molecule that give the molecule its specific properties and allow it to have chemical reactions with other molecules.
Hydroxyl Group A polar covalent bond of OH that reacts to other polar molecules/groups and is characteristics of alcohols.
Aldehyde Group A polar covalent bond of CHO that is important in energy-releasing reactions.
Carbonyl Group A polar covalent bond of CO- that often becomes the bridge between two molecules.
Carboxyl Group An ionic bond of COOH that is acidic, participates in ionic bonds/interactions, and plays an important role in how amino acids form proteins.
Amino Group An ionic bond of NH2 that plays an important role in how amino acids form proteins.
Phosphate Group A function group of PO4 with a -2 charge that release energy for cellular processes when the covalent bonds between them are broken.
Sulfhydryl A polar covalent bond of SH that form disulfide bridges when H is released from 2 of this group.
Methyl Group A nonpolar group made of hydrocarbons that is important in DNA gene expression.
Methylation The transfer of a methyl group to a molecule.
Demethylation The process of removing a methyl group from a molecule.
Created by: Inkie27
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