The scientific method includes all of the following EXCEPT

The scientific method includes all of the following EXCEPT: (Points: 5)
observation.
hypothesis making.
testing.
the application of knowledge gained.


2. 2. A control group differs from an experimental group: (Points: 5)
in the number of test organisms used.
by the independent variable.
in several ways.
in no way.


3. A theory and a hypothesis are different in that: (Points: 5)
you must have a theory before you can form a hypothesis.
a theory is developed as a result of broad agreement among scientists and a hypothesis is a much less substantiated idea.
a theory is much easier to disprove than a hypothesis.
a theory can never be disproved while a hypothesis can.


4. 4. Pseudoscience and nonscience differ in that: (Points: 5)
nonscience is not valuable and pseudoscience is valuable.
pseudoscience deceives, misleads, or misinforms and this is not a primary characteristic of nonscience.
nonscience forms hypotheses and pseudoscience does not.
pseudoscience has led to major changes in intellectual thought and nonscience has not.


5. 5. Metabolism refers to: (Points: 5)
chemical reactions such as photosynthesis.
the process of reproduction.
the formation of heterotrophs.
a collection of hypotheses.


6. 6. Which sequence correctly lists levels of organization from simple to more complex? (Points: 5)
Biosphere, ecosystem, community, population
Atoms, cell, molecules, tissue, organism
Organ system, organ, organisms, cell
Cell, tissue, organ, organ system


7. Kinetic energy is best defined as: (Points: 5)
the energy of position.
the energy of electrical charge.
the energy of motion.
stored energy.


8. An isotope is an atom of an element that varies in mass number due to variation in the number of: (Points: 5)
atoms.
protons.
neutrons.
electrons.


9. A covalent bond is: (Points: 5)
the attraction that one atom has for another atom.
the attraction between two atoms, formed by the sharing of electrons.
formed between the positive charge of a hydrogen atom in one molecule and the negative charge of a nitrogen atom in another nearby molecule.
the attraction between a positive ion and a negative ion.


10. Solutions are always comprised of: (Points: 5)
solvents and solute.
liquids and solids.
water and salts.
compounds and ions.


11. Which of the following is a chemical reaction that is also known as digestion? (Points: 5)
Phosphorylation
Dehydration synthesis
Acid-base
Hydrolysis


12. Which kind of chemical reaction involves the attachment or removal of a phosphate group? (Points: 5)
Oxidation-reduction
Acid phosphorylation
Phosphorylation
Hydrolysis


13. A solution with a high concentration of hydrogen ions could have a pH of: (Points: 5)
2.
6.
9.
11.


14. The reaction C6H12O6 + O2 „_ CO2 + 6H2O is which type of chemical reaction? (Points: 5)
Hydrolysis
Transfer
Dehydration synthesis
Oxidation-reduction


15. Organic molecules always: (Points: 5)
contain carbon.
contain carbon, hydrogen, and oxygen respectively in a 1:2:1 ratio.
are produced by living organisms.
dissolve in water.


16. A number of simple sugars may combine to form: (Points: 5)
protein.
complex carbohydrates.
amino acids.
fat.


17. Carbohydrates are a source of: (Points: 5)
protein.
energy.
glycerol.
fatty acids.


18. Which is NOT a major function of proteins? (Points: 5)
Provides cell structure
Stores energy for the cell
Functions as regulator molecules in cellular activity
Functions as carrier molecules


19. Which of the following is NOT a lipid? (Points: 5)
Olive oil
Fat
Amino acid
Steroid


20. Molecules that resemble fats but contain phosphate functional groups are called: (Points: 5)
steroids.
polypeptides.
phospholipids.
nucleic acid.

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