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College Biochemical Pathways
The production of ATP in photosynthesis is called                          .
  1. photophosphorylation
  2. chemiosmosis
  3. catabolism
  4. oxidative phosphorylation
College Biochemical Pathways
The process of glucose breakdown to produce ATP that occurs solely in the cytoplasm and does not require oxygen is termed?
  1. glycolysis
  2. Krebs cycle
  3. electron transport
  4. citric acid cycle
  5. none of the above
College Macromolecules
How does a competitive inhibitor of an enzyme work?
  1. fitting into the enzyme's active site
  2. fitting into the allosteric site of the enzyme
  3. attaching itself to the substrate, thereby preventing the enzyme from making contact with substrate
  4. increasing the activation energy of the enzyme-catalyzed reaction
College Macromolecules
Which of the following determines the chemical reactivity of biological molecules?
  1. functional groups
  2. isomers
  3. number of carbon atoms
  4. length the hydrocarbon chain
College Biochemical Pathways
Which of the following processes during cellular respiration produces the most ATP per molecule of original glucose molecule?
  1. pyruvate oxidation
  2. citric acid cycle
  3. glycolysis
  4. oxidative phosphorylation
College Biochemical Pathways
Overall, four molecules of ATP are produced by glycolysis. However, the products of glycolysis are two ATP molecules, two pyruvate molecules, and two NADH molecules. The ATP values do not match because                                                     .
  1. glucose metabolism is inefficient.
  2. glucose phosphate is formed from fructose phosphate.
  3. glucose is degraded to CO2.
  4. two ATP are invested in the process of glycolysis.
  5. None of the above
College Acids and Bases
Which of the following describes a base, according to the Brønsted-Lowry theory?
  1. resists changes in pH
  2. releases hydrogen ions in a solution
  3. accepts hydrogen ions in a solution
  4. a single subunit that is repeated in a much larger molecule
  5. a large molecule with many repeating subunits
College Properties of Matter
What is the number of moles of an ideal gas in a 1.75-L container at 290 K and a pressure of 0.650 atm? (R=0.0821 L•atm/mol•K)
  1. 0.048 mol
  2. 20.83 mol
  3. 2.09×10-3 mol
  4. 4.19×10-4 mol
College Macromolecules
Which of the following categories includes all others in the list?
  1. monosaccharides
  2. polysaccharides
  3. starch
  4. carbohydrate
College Periodic Table and Elements
What is the atomic number and atomic mass?
  1. number- protons mass- protons+neutrons
  2. number- electrons mass- protons
  3. number- valence electrons mass- neutrons
  4. number- valence electrons mass- protons
  5. number- protons mass- protons+electrons
College Biochemical Pathways
Which two substances act as substrates during photosynthesis?
  1. glucose and oxygen
  2. water and carbon dioxide
  3. glucose and carbon dioxide
  4. stoma and thylakoids
College Biochemical Pathways
Fats that have fatty acids with only single covalent bonds in their carbon skeletons are referred to as                                   .
  1. saturated
  2. unsaturated
  3. found in plants instead of animals
  4. liquid at room temperature
  5. hydrophilic
College Macromolecules
Which of the following BEST summarizes the relationship between dehydration reactions and hydrolysis?
  1. Dehydration reactions can occur only after hydrolysis.
  2. Dehydration reactions occur only in animals, and hydrolysis reactions occur only in plants.
  3. Hydrolysis creates monomers, and dehydration reactions destroy them.
  4. Hydrolysis creates polysaccharides, and dehydration creates monosaccharides.
  5. Dehydration reactions assemble polymers, and hydrolysis breaks them down.
College Bonds and Mixing
Solutions that contain undissolved particles that are visible to the naked eye are know as:
  1. suspensions
  2. mixtures
  3. solutes
  4. molecules
College Chemistry
Which of the following statements correctly describes any chemical reaction that has reached equilibrium?
  1. the concentrations of products and reactants are equal
  2. the reaction is now irreversible
  3. both forward and reverse reactions have halted
  4. the rates of the forward and reverse reactions are equal
College Biochemical Pathways
Which of the following is a list of the stages in cellular respiration in the correct order?
  1. pyruvate oxidation, glycolysis, the citric acid cycle, and oxidative phosphorylation
  2. oxidative phosphorylation, glycolysis, the citric acid cycle, and pyruvate oxidation
  3. glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation
  4. glycolysis, the citric acid cycle, pyruvate oxidation, and oxidative phosphorylation
  5. the citric acid cycle, pyruvate oxidation glycolysis, and oxidative phosphorylation
College Atomic Structure
Carbon has how many electrons?
  1. 6
  2. 3
  3. 8
  4. 4
College Biochemical Pathways
Photosynthesis consists of the light reactions and the carbon fixation reactions. Where do the light reactions occur and what do the light reactions produce?
  1. In the plant cell cytosol: glucose
  2. In, on and under the thylakoid membranes: ATP and NADPH.
  3. In the mitochondrial outer membrane: ATP and NADH.
  4. In the chloroplast stroma: G3P
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