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Bio 156 Study Material for Exam 1 (Lesson 1-6) Questions and Answers
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Bio 156 Study Material for Exam 1 (Lesson 1-6) Questions and Answers
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Bio 156 Study Material for Exam 1(Lesson 1-6) Questions and Answers
Covalent Bond - Answer -A chemical bond that share a pair of electrons
Ionic Bond - Answer -Is a strong mural attraction between ions of opposite charge like
NaCl that consists of sodium on and a chloride ion held together by an ionic bond
Hydrogen Bond - Answer -weak attraction between a hydrogen atom and another atom
Atom - Answer --Smallest particle of an element
-made up of protons,neutrons,and electron
-nucleus is made of uncharged neutron and proton
Hypothesis - Answer -Is a testable explanation of a natural phenomenon
Prediction - Answer -Is a statement based on a hypothesis about a condition that should
occur if the hypothesis is correct
Control group - Answer -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.
Theory - Answer -A hypothesis that has been tested with a significant amount of data
Levels of Organization of Life - Answer -atoms〰molecules〰cells〰tissues〰organs〰
organ systems〰organisms〰population〰community〰ecosystem〰biome〰biosphere
Three Domains of Life - Answer -Bacteria, Archaea, Eukarya
Four Kingdoms of Eukarya - Answer -Protista, Plantae, Fungi, Animalia
Properties of Life - Answer --ability to reproduce
-a complex organization
-ability to respond to stimuli from the environment
-Ability to take energy and use it
Homeostasis - Answer -Living things sense and respond to change
, DNA - Answer -hereditary material
Consumer - Answer -An organism that obtains energy by feeding on other organisms
Producer - Answer -An organism capable of producing complex organic compounds
from simple in organic molecules (Sunlight->chemical energy)
Decomposer - Answer -organism that breaks down and obtains energy from dead
organic matter and to carry out the natural process of decomposition
Community - Answer -assemblage of different populations that live together in a defined
area
Ecosystem - Answer -A biological community of interacting organisms and their physical
environment.
Which of the following is not a trace element in the body? - Answer -Nitrogen
Electrons move about the nucleus of an atom in the same way that - Answer -insects fly
around a bright lamp at night
Which of the following statements is true for radioactive isotopes? - Answer -They can
be used in conjunction with PET scans to diagnose a patient
radioactive isotope - Answer -An isotope whose nucleus decays spontaneously, giving
off particles and energy.
Acid - Answer -compound that forms hydrogen ions (H+) in solution
Base - Answer -A substance that decreases the hydrogen ion concentration in a
solution.
pH scale - Answer -scale with values from 0 to 14, used to measure the concentration of
H+ ions in a solution; a pH of 0 to 7 is acidic, a pH of 7 is neutral, and a pH of 7 to 14 is
basic
Bases do which of the following - Answer -Either accept H+ ions from solutions or
donate OH- ions to solutions.
Carbohydrates - Answer -Broken down to glucose to provide energy.
Lipids - Answer -Energy-rich organic compounds, such as fats, oils, and waxes, that are
made of carbon, hydrogen, and oxygen.
Protein - Answer -An organic compound that is made of one or more chains of amino
acids and that is a principal component of all cells
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