Quiz: Are You Ready To Take The Ecology Exam Test?

22 Questions | Total Attempts: 757

SettingsSettingsSettings
Please wait...
Quiz: Are You Ready To Take The Ecology Exam Test?

.


Questions and Answers
  • 1. 
    During a scientific experiment, attempts are made to prove a hypothesis______by contrasting changeable factors called______against standard unchangeable factors called ____.   
    • A. 

      False,variables, controls

    • B. 

      True, controls, variables

    • C. 

      False, variables, controls

    • D. 

      True, controls, variables

  • 2. 
    The scientific method is based on discovering general principles through observation and experimentation, which is:
    • A. 

      Inductive reasoning

    • B. 

      Deductive reasoning

  • 3. 
    All of the following are true except:
    • A. 

      Experiments are designed to prove a hypothesis is false

    • B. 

      Experiments can be controlled or comparative

    • C. 

      A null hypothesis is that no difference exists amount variables

    • D. 

      Theories are true and cannot be proven false

  • 4. 
    Which is not included in the cell theory? 
    • A. 

      All cells came from pre-existing cells

    • B. 

      All cells are similar in composition

    • C. 

      All cells require oxygen for their chemical reactions

    • D. 

      All cells have homeostasis

  • 5. 
    5) If cells>>tissue>>organs>>Organ systems>> the organizational analogy to organs in ecology would be:
    • A. 

      Population

    • B. 

      Community

    • C. 

      Ecosystem

    • D. 

      Biome

  • 6. 
    19) All of the following statements about water are true except:
    • A. 

      A water molecule ionizes into one proton and one hydroxyl group

    • B. 

      Water is a polar molecule making it a good solvent to dissolve such solutes as NaCl

    • C. 

      The oxygen in a water molecule is larger than hydrogen, making oxygen partially positive due to the greater number of protons in it's nucleus

    • D. 

      Water has a high specific heat requiring a large input of thermal energy to break the many weak bonds between water molecules

  • 7. 
    28) Which chemical reaction is an example of a dehydration (condensation) reaction? 
    • A. 

      Glycogen>>>>glucose+glucose+glucose+....

    • B. 

      Nucleic acid>>>>>nucleotide+nucleotide+nucleotide

    • C. 

      Glycerol+3 fatty acids>>>>triglyceride

    • D. 

      Protein>>>amino acid+amino acid

  • 8. 
    29) Lactose is a disaccharide composed of: 
    • A. 

      Two glucose molecules

    • B. 

      Fructose and glucose

    • C. 

      Fructose and galactose

    • D. 

      Glucose and galactose

  • 9. 
    30) Which of the following is not found in animals?
    • A. 

      Unsaturated fatty acids

    • B. 

      Saturated fatty acids

    • C. 

      Glycogen

    • D. 

      Mitochondria

  • 10. 
    35) Which of the following nitrogenous bases is found only in RNA? 
    • A. 

      Thymine

    • B. 

      Guanine

    • C. 

      Adenine

    • D. 

      Uracil

  • 11. 
    Which of the following pairs are purines
    • A. 

      Adenine and guanine

    • B. 

      Guanine and cytosine

    • C. 

      Cytosine and thymine

    • D. 

      Thymine and adenine

  • 12. 
    37) Which carbon in the deoxyribose sugar of DNA bears the hydroxyl group that forms a phosphodiesterase bond?  
    • A. 

      C(1)

    • B. 

      C(2)

    • C. 

      C(3)

    • D. 

      C(4)

  • 13. 
    38) The primary structure of protein is read from the: 
    • A. 

      3' end to the 5' end

    • B. 

      N terminus to the C terminus

  • 14. 
    39) Of the following molecules, which did Urey and Miller not use in their famous experiment? 
    • A. 

      H2S

    • B. 

      O2

    • C. 

      NH3

    • D. 

      H20

  • 15. 
    40) Which of the organisms was responsible for generating an oxidizing environment 2.5 billion years ago? 
    • A. 

      Thermophiles

    • B. 

      Giardia

    • C. 

      Halophiles

    • D. 

      Cyanobacteria

  • 16. 
    41) Archaebacteria evolved ______ years ago. 
    • A. 

      4.6 billion

    • B. 

      3.8 billion

    • C. 

      3.5 billion

    • D. 

      2.5 billion

  • 17. 
    Evidence for endosymbiosis includes all of the following except
    • A. 

      Circular DNA in chloroplasts

    • B. 

      Giardia and Prochloron

    • C. 

      Free living mitochondria

    • D. 

      Double membranes in energy producing organelles

  • 18. 
    43) The area of a cell is ______, whereas it's volume is______.
    • A. 

      Doubled, tripled

    • B. 

      Squared, cubed

    • C. 

      Cubed, squared

    • D. 

      Tripled, doubled

  • 19. 
    44) Aqueous solutions are:
    • A. 

      Lipid soluble solutions

    • B. 

      Water soluble solutions

  • 20. 
    Which statement is false?
    • A. 

      The inside of the cell is more negative than the outside

    • B. 

      The concentration of sodium is greater outside of the cell than inside

    • C. 

      Oxygen is more lipid soluble than carbon dioxide

    • D. 

      A blood that is 150 mOsm is hypo-osmotic in humans

  • 21. 
    The movement of glucose into a cell utilizing sodiums gradient is an example of:
    • A. 

      Simple diffusion

    • B. 

      Active transport

    • C. 

      Facilatated diffusion

  • 22. 
    Which is not limited to a Vmax?
    • A. 

      Simple diffusion

    • B. 

      Active transport

    • C. 

      Facilatated diffusion