Principles Of Biology Exam 1

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Terms Used To Study For My BIOL 1050 First Exam, Principles Of Biology. These Are Just General Biology Terms.

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The study of life
Begins with specific observations(facts), draws general conclusion, used to form scientific hypothesis
inductive reasoning
Starts with general idea, makes specific predictions that follow logically
deductive reasoning
The concerted human effort to understand, or to understand better, the history of the natural world and how the natural world works, with observable physical evidence as the basis of that understanding.
A statement that provides some explanation for the observed facts
The variable that is measured, counted, or observed
dependent variable
The variable that is manipulated
independent variable
Independent variable is held at a constant level or omitted
Method or sequence of steps performed for the experiment
Repeating the experiment several times to provide consistent results
Observation that is subjective(colors, smells, etc...)
Observation that includes facts or measurements
The capacity to do work
The set of chemical reactions that occur in living organisms to maintain life.
Molecules and structures that detect stimuli
A specific form of energy that a receptor can detect
To maintain relatively constant internal conditions
Reproduction which requires the two cells from different individuals to unite to produce the first cell of a new organism.
sexual reproduction
Reproduction in which a single organism can reproduce without the aid of another.
asexual reproduction
Fundamental form of matter that cannot be broken down into a different form of matter by ordinary chemical means
Smallest unit of an element that retains the element's properties, consist of three subatomic particles
Atom that varies in neutron number
Union between the electron structures of two or more atoms
chemical bond
Occurs when two or more elements intermingle in proportions that can vary
3 kinds of chemical bonds
ionic, covalent, hydrogen
8 characteristics of living things
Assimilate and use energy, Can respond to their environment, Maintain relatively constant internal conditions, Possess an inherited information base in DNA, Can reproduce, Are composed of 1 or more cells, Evolved from other living things, Are highly organized on different levels
Bond in which atoms of opposite charge attract each other
ionic bond
An atom that has either lost or gained one or more electrons
Bond in which atoms share outer-shell electrons with other atoms
covalent bond
Bond in which a weak attraction forms when the positive end of 1 polarized molecule is attracted to the negative end of another
hydrogen bond
Type of covalent bonding in which distribution of charge is symmetrical
Type of covalent bonding in which distribution of charge is asymmetrical