Questions With Complete Solutions
What is Evolutionary Adaptation? All organisms interact with other organisms and the
nonliving environment in ways that influence their survival and as a consequence organisms
evolve adaptations to their environment.
The "experiment" part of the scientific method consists of what? 1) Testing the hypothesis
2) Only testing one variable at a time
3) Has a test experiment and a control experiment
What is a Scientific Theory? A body of interconnected concepts that is supported by much
experimental evidence and scientific reasoning. Not a guess.
What are the three elements of "Cell Theory?" 1) All organisms are composed of cells
2) Cells are the basic unit of all living organisms
3) All cells come from preexisting cells
What does DNA stand for? Deoxyribonucleic acid
, SLCC BIOL 1610 Karren - Exam 1
Questions With Complete Solutions
How many nucleotides encode a cell's information? 4 (four)
What is a Gene? A discrete unit of information
What is a Genome? An entire set of DNA instructions
How does DNA help sustain the continuity of life? The continuity of life depends on DNA
faithfully copying itself into daughter cells
What three things are atoms composed of? Protons
Neutrons
Electrons
Protons have what charge and are located where? Protons have a POSITIVE charge and
are located in the NUCLEUS
Neutrons have what charge and are located where? Neutrons have a NEUTRAL charge
and are located in the NUCLEUS
, SLCC BIOL 1610 Karren - Exam 1
Questions With Complete Solutions
Electrons have what charge and are located where? Electrons have a NEGATIVE charge
and are located in ORBITALS surrounding the nucleus
What is Atomic Mass? Atomic Mass is the AMOUNT of the element
SUM OF PROTONS + NEUTRONS
What is Atomic Weight? Atomic Weight is the FORCE OF GRAVITY exerted on the
element
Each Proton and Neutron have a mass of approximately what? 1 AMU or Dalton
Neutral atoms have the same number of protons and what? Electrons
What are charged atoms called? Ions
What is a positively charged ion called? A Cation