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Biology 1100 exam 1 with Complete Solutions
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Biology 1100 exam 1 with Complete Solutions
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Biology 1100 exam 1 with Complete SolutionsCharacteristics of living organisms - ANSWER-Composed of one or more cell,
reproduce using DNA, obtain energy from their environment, sense their environment
and respond to it, maintain a constant internal environment, can evolve as groups, living
What is a hypothesis - ANSWER-An informed explanation for observations of the
natural world
Independent variable - ANSWER-Single variable that is manipulated
Dependent variable - ANSWER-A variable that could respond to to the changes in the
independent variable
Element - ANSWER-Is a pure substance composed of atoms and cannot be broken
down into anything else's
Chemical reaction - ANSWER-Bonds between atoms are formed or broken
What element is found in organic molecules - ANSWER-
What are three types of chemical bonds? - ANSWER-Covalent, ionic, and hydrogen
Attach atoms to one another
Solute - ANSWER-A dissolved substance
Solvent - ANSWER-The fluid into which the solute has dissolved.
what does the Ph scale measure? - ANSWER-Hydrogen ion concentration
Polar molecule - ANSWER-A molecule whose electrical charge is shared unevenly, with
some regions being electrically negative and others electrically positive
Macromolecules - ANSWER-Organic molecules protein, carbohydrates, lipids, nucleic
acids
What are the specific monomers used to build macromolecules - ANSWER-Protein
carbohydrates and nucleic acids are polymers long strands of repeating units of small
molecules called
Monomers
What are the parts of cell theory - ANSWER-All living things are composed of one or
more cells, and that all cells living today came from pre existing cells
What is plasma membrane - ANSWER-Every cell is surrounded by plasma membrane
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