Biology 100/103 - Concepts in Biology
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Exam Corrections


  1. Corrections are due one week after the exam was returned in class. (10%  late penalty per day thereafter)  
  2. Corrections are OPTIONAL.   Your grade can only improve, not decrease.
  3. Corrections are only for questions which you MISSED on the exam.
  4. Maximum credit is 50% of the # points lost.  E.g. an exam score of 64 means that 36 points  were lost.  Ergo, UP TO 18 points can be regained, for a maximum score of 82.
  5. Corrections will be graded on the following criteria:      
  6.  a) The correct answer must be identified.  Incorrect answer = little/no credit for the question.
  7.  b) Each choice (A, B, C, D, E) must be explained: why it is true or false.
     c) Explanations must be complete and correct.   (It helps to cite the page# of your textbook)
     d) False/missed explanations = partial credit;   No explanations  = NO CREDIT.
  8. General format:  Re-write the question, followed by each answer.
  9. Hand in your corrections stapled to your original answer sheet (required!!). 

Sample exam question and the corresponding exam correction: 

1. A good example of an ecologist is a biologist who studies:

Exam Correction Answer


  1. How the heart pumps blood to the body: incorrect. This is an example of a physiologist.
  2. How bacteria ferment glucose into lactic acid: incorrect. This is what a microbiologist would study.
  3. How plant cells copy their DNA: incorrect. A geneticist would study this.
  4. How the plants of a forest are affected by acid rain: correct. Ecology deals with the study of how organisms interact with their environment. The acid rain is part of the non-living environment affecting the plants in this case.
  5. How glucose molecules get transported across a membrane: incorrect. A cell biologist would probably study this.


Note: Each choice (A - E) is identified as correct or incorrect.   An incorrect choice is explained WITH EXAMPLES as to what it REALLY IS, not simply as "Others have this too".  (Since the answers A, B, D, and E are false, this is obvious).   What I am looking for is an understanding of why these choices are wrong.   Where appropriate, textbook pages are cited.


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