Bio. 101 Exam
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What are the 8 steps of the scientific method?
- recognizing a problem or stating a question
- develop a hypothesis
- make a prediction that can be tested
- make further observations
- perform experiments
- interpret results
- draw conclusions
A tentative explanation for observations or phenomena.
A ______is an idea or set of ideas that is intended to explain facts or events.
A mathematical variable whose value is determined by that of one or more other variables in a function is called a _______ variable.
A mathematical variable that is independent of the other variables in an expression or function is a _______ variable.
What are the 6 characteristics of life?
- growth and development
- self- regulated metabolism
- ability to respond to stimuli
________ are inherited characteristics that enhance an organisms ability to survive in a particular environment.
Name the 2 types of reproduction.
asexual and sexual
_______ is defined as all the changes that take place during an organisms life.
The sum of all chemical activities of an organism.
_______ is an increase in the size of individual cells of an organism.
Physical or chemical changes in their internal or external environment is a _______ response.
A balanced internal environment.
Name the 8 taxonomic classifications.
________ require complex organic compounds for metabolic synthesis.
________ require only one carbon and a simple inorganic nitrogen for metabolic synthesis.
Substances that cannot be broken down by ordinary chemical reactions.
The smallest portion of an element.
Every element has a fixed number of protons called its
______ ____ is a number that indicates approximately how much matter it contains.
The mass of a molecule that is equal to the sum of the masses of all the atoms contained in the molecule.
______ determine the chemical behavior of an atom.
Positively charged ion.
Negatively charged ion.
A _____ is the amount of an element or compound whose mass in grams is equal to its atomic or molecular mass.
In ______ bonds electrons are shared to fill the valence shell.
______ bonds form because of the attraction between the cation and the anion.
___________ contain from 3 to 7 carbon atoms.
___________ contain 2 monosaccharide rings.
___________ are macromolecules consisting of repeating units of simple sugars, usually glucose.
4 levels of protein structure
- primary structure
- secondary structure
- tertiary structure
- quaternary structure
_______ structure is the sequence of amino acids, joined by peptide bonds.
______ structure defines function and stucture.
________ structure is the overall shape assumed by each individual polypeptide chain.
________ structure is the 3-D structure.
When proteins change shape due to changes in pH, temperature, or exposure to certain chemicals it is called ________
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