Biology now! exam #1
Data
Facts and statistics collected together for reference or analysis
Process of Science
Scientific method; Observation, hypothesis, prediction, design test based on prediction, analyza results, accept or reject hypothesis
Atom
The smaller unit of an element that retains its distinctive properties
non-soluble
The solute cannot be dissolved in a particular solvent.
Experiment
a repeatable procedure that is used to test a hypothesis
Molecules
atoms linked by covalent bonds
Amino Acids
building blocks of proteins
Acids
compounds that form hydrogen ions when dissolved in water
Peer-reviewed
evaluation of scientific, academic, or professional work by others working in the same field.
Primary literature
first publication of scientific research that contains actual data and with controls
Polymers
large compound formed from combinations of many monomers, Proteins, carbohydrates, and nucleic acids
ATP (adenosine triphosphate)
main energy source that cells use for most of their work
pH scale
measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14
inorganic molecules
non-carbon based molecules
Bias
prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
treatment group
the experimental group, which is maintained under the same standard set of conditions as the control group. But the independent variable is manipulated
Scientific literacy
understanding basic scientific terms and principles
Hydrogen bond
weak attraction between a hydrogen atom and another atom
Products
Ending materials in a chemical reaction.
Lipids
Energy-rich organic compounds, such as fats, oils, and waxes, that are made of carbon, hydrogen, and oxygen.
Shells of atoms
2 electrons Finnish first shell a8 electrons finish second shell
Covalent bond
A chemical bond that involves sharing a pair of electrons between atoms in a molecule
DNA
A complex molecule containing the genetic information that makes up the chromosomes.
Theory
A hypothesis that has been tested with a significant amount of data. Multiple times
Solvent
A liquid substance capable of dissolving other substances
Mass
A pure substance that has distinctive physical and chemical properties, and that cannot be broken down
Reactants
A starting material in a chemical reaction
Electron
A subatomic particle that has a negative charge
Neutron
A subatomic particle that has no charge and that is found in the nucleus of an atom
Proton
A subatomic particle with a positive electric charge
Hypothesis
An informed, logical, and plausible explanation for observations of the natural world A statement, not a question
Matter
Anything that has mass and occupies space. Makes up everything in life
Isotopes
Atoms of the same element that have different numbers of neutrons
Proteins
Chains of amino acids
Pseudoscience
Characterized by scientific-sounding statements, beliefs, or practices that are not based on the scientific method
Bases
Compounds that reduce the concentration of hydrogen ions in a solution.
Nucleic acids
DNA and RNA. Most crucial part of polymers
Condensation
Gas to liquid, opposite of evaperation
Hydrogen
H 1
Water
H2O, universal solvant
Mass number
How much the atom weighs, combined number of protons and neutrons in the nucleus
Control group
In an experiment, the group that is not exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment.
Basic research
Intended to expand the fundamental knowledge of science; Ex: textbooks
Analyzation
Looking for patterns in the data
Density
Mass/volume
Atomic number
Number of protons in an atoms's nucleus, top left corner
Causation
The action of cousing something
Solute
The dissolved substance
Independent variable
The experimental factor that is manipulated; the variable whose effect is being studied.
Dependent variable
The outcome factor; the variable that may change in response to manipulations of the independent variable.
Correlation
Two or more aspects of the natural world behave in an interrelated manner
Statistics
Using math tools to qualify the reliability of the data and their patterns
Hydrophobic
Water fearing
Hydeophilic
Water loving
Observation
a description, measurement, or record of any object or phenomenon
Variables
an element, feature, or factor that is liable to vary or change.
Soluble
capable of being dissolved in water
Biomolecules
carbohydrates, lipids, proteins, nucleic acids
Solution
combination of solute and solvent
nonpolar molecule
molecule that shares electrons equally and does not have oppositely charged ends
Polar molecule
molecule with an unequal distribution of charge, resulting in the molecule having a positive end and a negative end, They have opposite charged ends
organic molecules
molecules that contain carbon
RNA
ribonucleic acid
Carbohydrates
simple sugars
secondary literature
sources that give a basic overview or a topic, or summarize research results
chemical reaction
the process by which one or more substances change to produce one or more different substances
evaperation
the prosses where a liquid changes into a gas
Oxygen
thing we breath in and has the atomic number of 8
