Principles of Biology - Exam 1 UPDATED
Exam Questions and CORRECT Answers
What do living things have in common - CORRECT ANSWER - Living things are made
up of one or more cells
What is biology? - CORRECT ANSWER - The study of life
What is the scientific method? - CORRECT ANSWER - a method of procedure that has
characterized natural science since the 17th century, consisting in systematic observation,
measurement, and experiment, and the formulation, testing, and modification of hypotheses.
What is a hypothesis? - CORRECT ANSWER - A hypothesis is a statement that can be
tested
What are the elements of an experiment? - CORRECT ANSWER - Observe
Hypothesis
Experiment
Analyze
Conclusion
Explain the difference between a theory and a law - CORRECT ANSWER - A theory is
used to explain what happened, a law is used to predict what will happen
How do we define 'life'? (metabolism, homeostasis, reproduction, growth DNA, etc...) -
CORRECT ANSWER - Organization and Cells, Response to stimulus, Homeostasis,
Metabolism, Growth and Development, Reproduction, Change overtime (evolution)
How do we define life? - CORRECT ANSWER - growth, reproduction, responsiveness,
metabolism, cellular structure
, Are viruses living? - CORRECT ANSWER - No - they are non-cellular structures
What are the levels of organization in living things? - CORRECT ANSWER - Atom,
molecule, organelle, cell, tissue, organ, organ systems, organisms, population, community,
ecosystem, biosphere
How are organisms classified? - CORRECT ANSWER - kingdoms
What is cell theory? (List the 3 parts) - CORRECT ANSWER - All living things are made
of cells. 2) Cells are the basic unit of life. 3) All cells come from pre-existing cells.
How is cell size limited? - CORRECT ANSWER - must be large enough to house
organelles, reproduce, energy transformations, and handle properties of life, but must be small
enough for membranes to facilitate things going in and out
Describe how prokaryote and eukaryote cells are alike. - CORRECT ANSWER - Both
organisms are composed of cells, the basic unit of life, with each cell surrounded by a cell
membrane. They also have other membrane structures.
Explain how an elephant's cell is the same size as an ant's. - CORRECT ANSWER -
Basically, the cell size is the same for ants and elephants. Cell size is limited by the amount of
material transferred in and out of the cell
What is chemistry's role in life processes? - CORRECT ANSWER - the fundamental
examination of mechanisms, dynamics, recognition, and structure/function of relationships at the
molecular level.
What are the main molecules that make up cells? - CORRECT ANSWER - nucleic acids,
proteins, carbohydrates and lipids
Exam Questions and CORRECT Answers
What do living things have in common - CORRECT ANSWER - Living things are made
up of one or more cells
What is biology? - CORRECT ANSWER - The study of life
What is the scientific method? - CORRECT ANSWER - a method of procedure that has
characterized natural science since the 17th century, consisting in systematic observation,
measurement, and experiment, and the formulation, testing, and modification of hypotheses.
What is a hypothesis? - CORRECT ANSWER - A hypothesis is a statement that can be
tested
What are the elements of an experiment? - CORRECT ANSWER - Observe
Hypothesis
Experiment
Analyze
Conclusion
Explain the difference between a theory and a law - CORRECT ANSWER - A theory is
used to explain what happened, a law is used to predict what will happen
How do we define 'life'? (metabolism, homeostasis, reproduction, growth DNA, etc...) -
CORRECT ANSWER - Organization and Cells, Response to stimulus, Homeostasis,
Metabolism, Growth and Development, Reproduction, Change overtime (evolution)
How do we define life? - CORRECT ANSWER - growth, reproduction, responsiveness,
metabolism, cellular structure
, Are viruses living? - CORRECT ANSWER - No - they are non-cellular structures
What are the levels of organization in living things? - CORRECT ANSWER - Atom,
molecule, organelle, cell, tissue, organ, organ systems, organisms, population, community,
ecosystem, biosphere
How are organisms classified? - CORRECT ANSWER - kingdoms
What is cell theory? (List the 3 parts) - CORRECT ANSWER - All living things are made
of cells. 2) Cells are the basic unit of life. 3) All cells come from pre-existing cells.
How is cell size limited? - CORRECT ANSWER - must be large enough to house
organelles, reproduce, energy transformations, and handle properties of life, but must be small
enough for membranes to facilitate things going in and out
Describe how prokaryote and eukaryote cells are alike. - CORRECT ANSWER - Both
organisms are composed of cells, the basic unit of life, with each cell surrounded by a cell
membrane. They also have other membrane structures.
Explain how an elephant's cell is the same size as an ant's. - CORRECT ANSWER -
Basically, the cell size is the same for ants and elephants. Cell size is limited by the amount of
material transferred in and out of the cell
What is chemistry's role in life processes? - CORRECT ANSWER - the fundamental
examination of mechanisms, dynamics, recognition, and structure/function of relationships at the
molecular level.
What are the main molecules that make up cells? - CORRECT ANSWER - nucleic acids,
proteins, carbohydrates and lipids
