Pseudoscience and nonscience

Question

Assignment:

Question 1. The scientific method includes all of the following EXCEPT:

• observation.
• hypothesis making.
• testing.
• the application of knowledge gained.

Question 2. A control group differs from an experimental group:

• in the number of test organisms used.
• by the independent variable.
• in several ways.
• in no way.

Question 3. A theory and a hypothesis are different in that:

• 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.

Question 4. Pseudoscience and nonscience differ in that:

• 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.

Question 5. Metabolism refers to:

• chemical reactions such as photosynthesis.
• the process of reproduction.
• the formation of heterotrophs.
• a collection of hypotheses.

Question 6. Which sequence correctly lists levels of organization from simple to more complex?

• Biosphere, ecosystem, community, population
• Atoms, cell, molecules, tissue, organism
• Organ system, organ, organisms, cell
• Cell, tissue, organ, organ system

Question 7. Kinetic energy is best defined as:

• the energy of position.
• the energy of electrical charge.
• the energy of motion.
• stored energy.

Question 8. An isotope is an atom of an element that varies in mass number due to variation in the number of:

• atoms.
• protons.
• neutrons.
• electrons.

Question 9. A covalent bond is:

• 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.

Question 10. Solutions are always comprised of:

• solvents and solute.
• liquids and solids.
• water and salts.
• compounds and ions.

Question 11. Which of the following is a chemical reaction that is also known as digestion?

• Phosphorylation
• Dehydration synthesis
• Acid-base
• Hydrolysis

Question 12. Which kind of chemical reaction involves the attachment or removal of a phosphate group?

• Oxidation-reduction
• Acid phosphorylation
• Phosphorylation
• Hydrolysis

Question 13. A solution with a high concentration of hydrogen ions could have a pH of:

• 2.
• 6.
• 9.
• 11.

Question 14. The reaction C6H12O6 + O2 „_ CO2 + 6H2O is which type of chemical reaction?

• Hydrolysis
• Transfer
• Dehydration synthesis
• Oxidation-reduction

Question 15. Organic molecules always:

• contain carbon.
• contain carbon, hydrogen, and oxygen respectively in a 1:2:1 ratio.
• are produced by living organisms.
• dissolve in water.

Question 16. A number of simple sugars may combine to form:

• protein.
• complex carbohydrates.
• amino acids.
• fat.

Question 17. Carbohydrates are a source of:

• protein.
• energy.
• glycerol.
• fatty acids.

Question 18. Which is NOT a major function of proteins?

• Provides cell structure
• Stores energy for the cell
• Functions as regulator molecules in cellular activity
• Functions as carrier molecules

Question 19. Which of the following is NOT a lipid?

• Olive oil
• Fat
• Amino acid
• Steroid

Question 20. Molecules that resemble fats but contain phosphate functional groups are called

• steroids.
• polypeptides.
• phospholipids.
• nucleic acid.