Chapter One Flashcards
Organism
Any living thing
Biology
The study of living things
Transport
The life function that includes the absorption and distribution of materials
Irritability
The life function that includes the ability to respond to stimuli
Nutrition
The life function of the processes of getting and using food
Photosynthesis
The process by which plants use light to make food energy
Ingestion
The process by which animals take in food that is already manufactured
Digestion
The process by which animals change complex foods into smaller, simpler foods
Absorption
The process in animals of substances passing through the wall of the intestine or through a cell membrane
Respiration
The life function of the process of getting energy through the oxidation of food
External respiration
The taking in of oxygen and release of carbon dioxide, also called breathing
Oxidation
The process of oxygen combining with another substance; a chemical reaction
Excretion
The life function of eliminating waste objects
Synthesis
The life function in which an organism makes useful chemicals for secretion, regulation, repair, and growth
Growth
The life function in which cells increase in size or number
Reproduction
The life function where living things create more of their own kind
Metabolism
The sum total of all eight life functions
Hypothosis
An informed prediction based on the explanation (theory) for something that has been observed
Control
Part of an experiment in which all variables are kept the same; provides a basis for comparison
Independent variable
The variable that is purposely changed in a experiment
Dependent variable
The variable in an experiment that changes because of the independent variable
