Term
The work of scientists beginsChemical reactions that release energy
A. Testing a hypothesis
B. Careful observations
C. Creating experiments
D. Drawing conclusions |
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Definition
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Term
Hypotheses may arise from
A. Prior Knowledge
B. Logical inferences
C. Imaginative queses
D. All of the above |
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Definition
| Prior knowledge, logical inference, imaginative queses |
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Term
A controlled experiment allows the scientist to isolate and test
A. A conclusion
B. A mass of information
C. Several variables
D. A single variable |
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Definition
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Term
Scientists publish the details of important experiments so that
A. Their work can be repeated
B. Their experimental procedures can be reviewed
C. Others can try to reproduce the results
D. All of the above |
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Definition
| Their work can be repeated, their experimental procedures can be reviewed, others can try to reproduce the results |
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Term
A well-tested explanation unifies a broad range of observations is a(an)
A. Hypotheses
B. Theory
C. Inference
D. Controlled experiment |
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Definition
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Term
All of the following are characteristics of all living things except.
A. Growth
B. Reproduction
C. Movement
D. Use of energy |
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Definition
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Term
Biology is the study of
A. The land, water, and air on Earth
B. Living things
C. Animals and plants only
D. The environment |
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Definition
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Term
The process by which organisms keep their internal conditions fairly constant is called
A. Homeostasis
B. Evolution
C. Metabolism
D. Photosynthesis |
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Definition
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Term
What is the term for a group of organisms of one type living int the same space?
A. Biosphere
B. Ecosystem
C. Population
d. Environment |
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Definition
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Term
In the metric system, the basic unit of length is the
A. Centimeters
B. Kilometer
C. Millimeter
D. Meter |
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Definition
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Term
Which is NOT a unit of measurement in the International System of Units, or SI?
A. Meter
B. Ounce
C. Liter
D. Gram |
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Definition
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Term
An instrument that allows light to pass through the specimen and uses two lenses to form an image is a(an)
A. Compound light microscope
B. Electron microscope
C. TEM
D. SEM |
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Definition
| Compound light microscope |
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Term
What is the term given to a group of cells that develop form a single original cell?
A. Community
B. Cell culture
C. Nutrient solution
D. Cell fractionation |
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Definition
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Term
Safety procedures are important when working
A. In a laboratory
B. In the field
C. With animals
D. All of the above |
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Definition
| In a laboratory, In the field, With animals |
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Term
The three particles that make up an atom are
A. Protons, neutrons, and isotopes
B. Neutron, isotopes, and electrons
C. Positives, negatives, and electrons
D. Protons, neutrons, and electrons |
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Definition
| Protons, neutrons, and electrons |
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Term
The nucleus is made of
A. Protons and electrons
B. Electrons and neutrons
C. Protons and neutrons
D. Protons, neutrons, and electrons |
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Definition
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Term
What technique is used to separate the different cell parts?
A. Microscopy
B. Cell Culture
C. Cell fractionation
D. All of the above |
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Definition
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Term
Isotopes are atoms of the same element with the same number of protons and
A. A different number of electrons
B. A different number of molecules
C. A different number of neutrons
D. The same number of neutrons |
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Definition
| A different number neutrons |
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Term
Which of the following terms describes a substance formed by the combination of two or more elements in definite proportions?
A. Compound
B. Isotope
C. Nucleus
D. Enzyme |
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Definition
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Term
A covalent bond is formed as the result of
A. Transferring electrons
B. Sharing electrons
C. Transferring protons
D. Sharing protons |
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Definition
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Term
Water molecules are polar, with
A. The oxygen side being slightly positive
B. The oxygen and hydrogen sides are being slightly positive
C. The oxygen and hydrogen sides being slightly negative
D. The oxygen side being slightly negative and the hydrogen side being slightly negative |
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Definition
| The oxygen side being slightly negative and the hydrogen side being slightly negative |
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Term
A solution is a(an)
A. Breaking of a chemical bond
B. Chemical reaction
C. Evenly distributed mixture of two or more substances
D. Combination of two or more liquids |
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Definition
| Evenly distributed mixture of two or more substances |
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Term
Suspensions are mixtures
A. Of water and nondissolved material
B. In which the components are evenly distributed throughout the solutions
C. Both a and b
D. neither a nor b |
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Definition
| Of water and nondissolved material |
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Term
Solutions that contain concentrations of H+ ions lower than pure water
A. Have pH values below 7
B. Are acids
C. Are bases
D. Are enzymes |
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Definition
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Term
Which of the following organic compounds is the main source of energy for living things?
A. Carbohydrates
B. Lipids
C. Nucleic acids
D. Proteins |
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Definition
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Term
Which of the following is NOT a function of proteins
A. Store and transmit heredity
B. Help to fight disease
C. Control the rate of reactions and regulate cell processes
D. Used to form bones and muscles |
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Definition
| Store and transmit heredity |
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Term
What is the term used to describe the energy needed to get a reaction started?
A. Adhension energy
B. Activation energy
C. Cohension energy
D. Chemical energy |
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Definition
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Term
Chemical reactions that release energy
A. Will not occur
B. Will never explode
C. Will always explode
D. Often occur spontaneously |
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Definition
| Often occur spontaneously |
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