Biology Practice Test (Part 2)

50 Questions | Total Attempts: 93

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Biology Quizzes & Trivia

Questions and Answers
  • 1. 
    Which of the following has the greatest amount of kinetic energy?
    • A. 

      Tank of gasoline

    • B. 

      Flying bird

    • C. 

      Parked car

    • D. 

      Cool air surrounding the engine

  • 2. 
    Entropy is a measure of
    • A. 

      Increase in orderliness

    • B. 

      Gain of high-level energy

    • C. 

      Increase in potential energy

    • D. 

      Increase in kinetic energy

    • E. 

      Increase in randomness

  • 3. 
    What is the ultimate source of energy for most forms of life on Earth?
    • A. 

      Heat energy

    • B. 

      Chemical energy

    • C. 

      Thermal energy

    • D. 

      Solar energy

    • E. 

      Nuclear energy

  • 4. 
    What results if glucose is metabolized under completely anaerobic conditions?
    • A. 

      Pyruvic acid immediately enters the Krebs cycle

    • B. 

      Pyruvic acid is converted by fermentation into CO2 and ethanol or lactic acid

    • C. 

      Pyruvic acid is converted back to fructose until the concentration of oxygen increases

    • D. 

      Pyruvic acid leaves the fluid portion of the cytoplasm and enters the mitochondrial matrix

    • E. 

      Pyruvic acid is converted to NADH

  • 5. 
    During glycolysis, what is the net gain of ATP molecules produced?
    • A. 

      36

    • B. 

      4

    • C. 

      34

    • D. 

      2

    • E. 

      38

  • 6. 
    Both plants and animals perform
    • A. 

      Glycolysis

    • B. 

      Fermentation

    • C. 

      Krebs cycle

    • D. 

      Photosynthesis

    • E. 

      A, B and C are correct

  • 7. 
    Which of the following is an example of an electron carrier molecule?
    • A. 

      Citric acid

    • B. 

      CO2

    • C. 

      Acetyl CoA

    • D. 

      NAD

    • E. 

      ATP

  • 8. 
    Chemiosmosis in mitochondria directly results in the synthesis of
    • A. 

      NADH

    • B. 

      FADH2

    • C. 

      H2O

    • D. 

      CoA

    • E. 

      ATP

  • 9. 
    The most ATP is produces during which of the following processes
    • A. 

      Glycolysis

    • B. 

      Krebs Cycle

    • C. 

      Electron transport chain

    • D. 

      An equal amount of ATP is produced during each of the processes above

    • E. 

      None of the answers are correct

  • 10. 
    Which of the following processes occur(s) in the cytoplasm?
    • A. 

      Glycolysis

    • B. 

      Krebs Cycle

    • C. 

      ETC (electron transport chain)

    • D. 

      Both A and B occur in the cytoplasm

    • E. 

      All of the above occur in the cytoplasm

  • 11. 
    What structural feature of a leaf allows a leaf to obtain CO2 from the air?
    • A. 

      Stoma

    • B. 

      Epidermis

    • C. 

      Cuticle

    • D. 

      Mesophyll

    • E. 

      Chloroplast

  • 12. 
     Specifically, molecules of chlorophyll are located in membranes of sacs called
    • A. 

      Cristae

    • B. 

      Thylakoids

    • C. 

      Stoma

    • D. 

      Lysosomes

    • E. 

      Vesicles

  • 13. 
    What factors influence the rate of photsynthesis?
    • A. 

      Light intensity

    • B. 

      Temperature

    • C. 

      CO2

    • D. 

      Water availability

    • E. 

      All of these

  • 14. 
    The majority of the leaf’s chloroplasts are found in the mesophyll cells.
    • A. 

      True

    • B. 

      False

  • 15. 
    Light-dependent photosynthetic reactions produce
    • A. 

      ATP, NADPH, O2

    • B. 

      ATP, NADPH, CO2

    • C. 

      Glucose, ATP, O2

    • D. 

      Glucose, ATP, CO2

    • E. 

      ATP, NADPH, H2O

  • 16. 
    During the process of photosynthesis,  solar energy is converted into
    • A. 

      Chemical energy

    • B. 

      Heat energy

    • C. 

      Thermal energy

    • D. 

      Mechanical energy

    • E. 

      Nuclear energy

  • 17. 
    In the lab, when observing the mesophyll cells of Alodea under the microscope, you saw many
    • A. 

      Amyloplasts

    • B. 

      Sphingoplasts

    • C. 

      Chloroplasts

    • D. 

      Leupoplasts

    • E. 

      Teichoplast

  • 18. 
    Which of the following has potential energy?
    • A. 

      Water droplet on top of a waterfall

    • B. 

      Glucose molecule

    • C. 

      Diver on a springboard

    • D. 

      9V battery

    • E. 

      All of the above

  • 19. 
    In exergonic chemical reactions
    • A. 

      Reactants have more energy than products

    • B. 

      Energy is stored by the reactions

    • C. 

      Reactants have less energy then products

    • D. 

      Reactants and products possess equal amounts of energy

    • E. 

      Both A and B are correct

  • 20. 
    An _________ chemical reaction releases energy while an __________ reactions requires an input of energy
    • A. 

      Exergonic; endergonic

    • B. 

      Endergonic; exergonic

    • C. 

      Enzymatic; endergonic

    • D. 

      Endergonic; enzymatic

    • E. 

      Equilibrium; exergonic

  • 21. 
    Imagine you are conducting an experiment on a yeast enzyme known as sucrase  This enzyme is used by yeast cells to break sucrose into glucose and fructose.  What type of reaction is this?
    • A. 

      Metergonic reaction

    • B. 

      Exergonic reaction

    • C. 

      Endergonic reaction

    • D. 

      Spontaneous reaction

  • 22. 
    The most common energy carrier molecule of living organisms is
    • A. 

      ATP

    • B. 

      Inorganic phosphate

    • C. 

      DNA

    • D. 

      Glucose

    • E. 

      GADPH

  • 23. 
    All the following statements pertaining to catalysts are true EXCEPT
    • A. 

      Enzymes are biological catalysts lacking specific activity

    • B. 

      Biological catalysts decrease the activation energy

    • C. 

      They (catalysts) increase reaction rate

    • D. 

      Catalysts are not permanently altered during reaction

    • E. 

      Catalysts can be used over and over again

  • 24. 
    The reactant in an enzyme-catalyzed reaction is the
    • A. 

      Activation energy

    • B. 

      Active site

    • C. 

      Product

    • D. 

      Inhibitor

    • E. 

      Substrate

  • 25. 
    Which of the following is part of the first law of thermodynamics
    • A. 

      Energy cannot be created or destroyed

    • B. 

      Kinetic energy is stored energy

    • C. 

      Energy cannot be transferred or transformed

    • D. 

      Exergonic reactions are coupled with endergonic reactions

    • E. 

      Potential energy equals kinetic energy in a reaction

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