Scientific Method
The study of life. The Greek word bios means “life,” and -logy means “study of.”
What is Biology?
Chemicals that result when two or more atoms join together chemically
What is Molecule?
A group of interbreeding organisms coexisting together
What is Population?
A tiny cellular structure that carries out a specific function necessary for the cell to survive
What is Organelle?
The random motion of molecules from an area of high concentration to an area of low concentration (with a concentration gradient) until its concentration becomes equal throughout the area (reaches equilibrium)
What is Diffusion?
A suggested, testable answer to a well-defined scientific question or a possible, testable explanation for observations
What is Hypothesis?
Chemical bond formed by the sharing of electrons between two or more atoms
What is Covalent bond?
Organisms that break down the dead remains of other organisms
What is Decomposers?
Non-membrane-bound organelles responsible for protein synthesis
What is Ribosomes?
The diffusion of water through a semipermeable membrane from an area of high water concentration (low solute concentration) to low water concentration (high solute concentration)
What is Osmosis?
The group in an experiment that experiences no manipulation (does not contain the independent variable)
What is Control group?
A weak electrical attraction between a partially positive hydrogen atom and a partially negative atom of another molecule (usually oxygen or nitrogen)
What is Hydrogen bond?
Links all the food chains in an ecosystem together
What is Food web?
The organelles where proteins and lipids are stored and then modified to suit the needs of the cell
What is Golgi apparatus?
Movement of molecules through the plasma membrane aided by a process that requires energy input
What is Active transport?
The variable manipulated by the experimenter
What is Independent variable?
Breaking down complex molecules by the chemical addition of water
What is Hydrolysis?
A relationship between two or more organisms of different species where all benefit from the association
What is Mutualism?
A cell organelle containing enzymes that catalyze the decomposition of fatty acids and hydrogen peroxide
What is Peroxisome?
The endocytic process by which a cell engulfs large, solid particles or cells
What is Phagocytosis?
An explanation of some part of the natural world that has been thoroughly tested and is supported by a significant amount of evidence from observations and experiments
What is Scientific theory?
The process in which the normal shape of a protein is lost, usually due to heat
What is Denaturation?
Population growth that is controlled by limited resources or the presence of predators or both
What is Logistic growth?
A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement
What is Cytoskeleton?
A series of electron-carrying molecules within a membrane that transfer electrons and release energy at each transfer
What is Electron transport chain?