Sample Questions for Exam One

Multiple Choice. Choose the answer that best answers or completes the question.

  1. Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy as it increases in complexity?
  2. ecosystem, population, organ system, cell, community, molecule, organ, organism, tissue
  3. cell, molecule, organ system, organ, population, tissue, organism, ecosystem, community
  4. organism, organ system, tissue, population, organ, community, cell, ecosystem, molecule
  5. molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem
  6. ecosystem, molecule, cell, tissue, organism, organ system, organ, community
  1. If you are asked to look into a microscope to see a plant cell, you will be looking for a cell that ,
  2. has a membrane bound nucleus
  3. does not have a membrane bound nucleus
  4. does not use DNA as instructions to make proteins
  5. makes up most of the tissues of your boy
  6. none of the above
  1. Which of the following best demonstrates the unity among all living organisms?
  2. descent with modification
  3. the structure and function of DNA
  4. natural selection
  5. the three domains
  6. emergent properties
  1. A hypothesis is,
  2. the same as a theory.
  3. a tentative answer to some question.
  4. an explanatory idea that is broad in scope and supported by a large body of evidence.
  5. a widely accepted idea about a phenomenon.
  6. a widely accepted theory that is broad in scope and supported by a large body of evidence.
  1. A collection of organ systems working together to sustain life is called a(n)
  1. cell b. tissuec. organd. organisme. compound
  1. The mass number of an atom is equal to the______
  2. number of neutronsd. average of the mass of all isotopes for that atom
  3. number of neutrons & protonse. valence shell electrons
  4. number of protons only
  1. If 16O has an atomic number of 8 it has______neutrons.
  1. 8b. 19c. 10d. 26 e. there is not enough information
  1. The numbers listed represent the number of electrons in the first, second and third energy levels respectively. On this basis, which of the following is an unstable (reactive) atom?
  1. 2,8,8b.2,8c.2d.2,8,1e.There is not enough information
  1. An anion is formed when an atom ______.
  2. equally shares electrons with another atom
  3. receives a proton from another atom
  4. donates an electron to another atom
  5. receives an electron from another atom
  6. none of the above
  7. Nonpolar covalent bonds are formed when,
  8. valence shell electrons are unequally shared
  9. atoms involved in a bond have an extreme difference in electronegativity
  10. valence shell electrons are equally shared
  11. valence shell electrons are transferred from one atom to another
  12. positively charged ions are formed
  1. Examine the chemical C6H12O6, Which of the following statements about it is TRUE?
  2. it is a protein
  3. it is a phospholipid
  4. it is an organic compound
  5. it is an inorganic molecule
  6. it is a nucleic acid
  1. Which of the following statements about phospholipids is TRUE?
  2. they are entirely hydrophobicd. they are the main source of energy in the body
  3. they have hydrophobic and hydrophilic regionse. they are important for energy storage in the body
  4. they are a type of cholesterol
  1. Amino acids joining together to make a polypeptide is a good example of a(n) ______reaction.
  1. exchangeb. reversiblec. decompositiond. dehydratione. hydrolysis
  1. In a water molecule, hydrogen and oxygen are held together by a(n) ______bond.
  2. adhesion
  3. ionic
  4. nonpolar covalent
  5. hydrogen
  6. polar covalent
  1. The tendency of water molecules to stick together is referred to as
  1. adhesionb. polarityc. cohesiond. transpiratione. evaporation
  1. Which of the following statements about the plasma membrane is TRUE?
  2. it plays a role regulating what can move into and out of the cell
  3. the plasma membrane contains a variety of proteins
  4. the plasma membrane helps maintain the shape of the cell
  5. it is a bilayer of lipid
  6. all of the above are true
  1. What type of cellular junctions need to be present in order for a cells cytoplasm and its dissolved solutes to easily pass (flow) from one cell to another?
  2. gap junctiond. intermediate filaments
  3. desmosomese. microtubules
  4. tight junction

Matching. Choose the term on the right that matches the description on the left

  1. responsible for protein synthesis____ a. golgi apparatus
  2. produces ATP for the cell____b. mitochondria
  3. the modification and sorting of proteins happens in this organelle____c. ribosome

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