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94' SBIOA Exam

 

93 Exam 
Part A: M/C
Part B: Short Answers
Part C: Essay Question

94 Exam 
Part A: M/C
Part B: Essay Questions

95 Exam 
Part A: M/C
Part B:
Part C:
Part D:

97 Exam 
Part A: M/C
Part B:
Part C:
Part D:
  

  

 

Part B: Essay Questions

 

  1. Briefly describe the difference between the primary, secondary, tertiary and quaternary structure of a protein.

     

  2. Describe the fluid mosaic model in detail (include a diagram).

     

  3. Explain how cell respiration and photosynthesis make the carbon cycle possible.

     

  4. Cold winter weather slows down the nitrogen, carbon and water cycles.  Explain.

     

     

  5. Describe in detail, one of the geochemical cycles

     

     

  6. Name and describe the 3 types of ecological pyramids.  Which type of pyramid do ecologists direct most of their attention to?

     

  7. What are the 3 major stages of the respiration process?

     

  8. Define and explain the process of photo-oxidation.

     

  9. Why do plants have accessory pigments? Give an example of one.

     

     

  10. Describe the evidence for chlorophyll being the principal photosynthetic pigment.

     

     

  11. Describe the process of protein synthesis.

    A plant grown from homzygous round (R) and yellow (Y) seeds was crossed with a plant grown from wrinkled green seeds.

    a) show PI

    b) gametes formed

    c) F1 Punnett square

    e) describe the phenotypic and genotypic ratios of F1

    f) Using a Punnett square show the results of the cross between plants in the F1 generation (i.e. F2)

    g) describe the phenotypic and genotypic ratios in the F2 generation

     

  12. Is it possible for Type B parents to have children who are not Type B? Explain

     

     

  13. A normal man marries a normal woman whose father is colour-blind.

    a) What is the probability that their sons will be colour-blind?

    b) What is the probability that their daughters will be colour-blind?

     

      <-Part A   ---  The End of 94 Exam  ---   95 Exam->