LECTURE EXAM GUIDELINES - BIOLOGY 2420
You will receive 45 two point multiple choice questions for a total of 90 points. You must provide a
Scantron ( Form No. 882 - ES OR EQUIVALENT) and appropriate pencils for use in answering
these questions. Certain exams will also require you to bring a calculator as well. You will also
receive a separate written answer sheet containing three essay - type questions. You will be
responsible for answering two of these essays or calculation questions, per instructions on the
answer sheet. The third MAY be answered for up to a possible 5 BONUS points. The exam
therefore will be worth a MAXIMUM of 105 points.
THE USE OF ANY UNAUTHORIZED ELECTRONIC DEVICE DURING
EXAMINATIONS OR POST EXAM TEST REVIEW SESSIONS IS CHEATING AND
WILL RESULT IN COURSE FAILURE!!
You will have up to one hour and thirty minutes, measured from five minutes after the start of class,
to complete the exam. Tardy arrival for the exam is INCLUDED in this time limit, and will be held
against the late student!!! At the end of the exam, the instructor will take fifteen minutes to scan
score the objective portion of the exam. You will then have the opportunity to view your scan score,
and check the answer key for the remainder of the class session. (or for FIFTEEN MINUTES if no
student returns to the classroom - I'm not waiting in an empty room!) Any questions or comments
about your score, or any exam question, must be made AT THAT TIME - they will not be
entertained subsequently! Points lost due to erasure smudges or incorrect selection technique on
scantron score sheets WILL NOT be credited back to the student. Record your answers on the
scantron sheet with care!!!
Your essays will be graded and your completed score returned to you WITHIN ONE WEEK of the
exam, on an "official date of return". You will have the opportunity then to inspect your essay sheets
and record your total score for future reference. The answer key for Scantrons WILL NOT BE
AVAILABLE AT THAT TIME!!! After 5 - 10 minutes, the exam items will be collected for
permanent record of the exam event. If the student is absent on the date of exam return, I will
provide the student with his or her scores at a later date, BUT WILL NOT CARRY THE EXAMS
THEMSELVES TO CLASS FOR THE ABSENT STUDENT'S INSPECTION BEYOND
THE OFFICIAL DATE OF RETURN.
NO SCANTRON OR ESSAY SHEETS ARE TO BE KEPT BY THE STUDENT!
UNRETURNED SCANTRONS OR ESSAY SHEETS WILL CONVERT THE STUDENT'S
EXAM GRADE TO A FIRM ZERO!! NO TEST QUESTIONS OR ANSWERS MAY BE
COPIED FROM ANSWER KEYS!!! NO ANSWER KEYS MAY BE COPIED IN ANY WAY
AND TO ANY EXTENT!!! COPYING OF TEST QUESTIONS AND/OR ANSWERS CAN
BE CONSTRUED AS CHEATING AND COULD LEAD TO IMMEDIATE EXAM
FAILURE OR COURSE FAILURE!!!
Five sample questions appear on the next page. These questions will not appear on your exam, and
are only given to you as examples of the type of wording and format you might expect.
1. All of the following are targets of antimicrobial agents that inhibit protein synthesis EXCEPT
a. the shape of the 30S ribosomal subunit
b. interference with the formation of glycosidic bonds
c. the portion of the 50S ribosomal subunit responsible for peptide bond synthesis
d. movement of the ribosome from one codon to the next
e. the tRNA docking site
ANSWER B
2. Gram positive organisms differ from Gram negative organisms because
a. the cell walls of Gram positive organisms contain chitin
b. Gram negative organisms lack a cell wall
c. Gram positive organisms possess a triple layered cell wall consisting of cholesterol and
triglycerides
d. Gram negative cell walls are very waxy in nature, making them resistant to chemicals and drying
e. Gram negative cell walls contain phospholipids and lipopolysaccharides which form an outer
lipid layer
ANSWER E
3. Destruction of the beta lactam ring is an important example of
a. effective law enforcement
b. the potent disinfection capability of phenol
c. microbial resistance to penicillins and cephalosporins
d. a preservation technique which prevents synergistic anaphylaxis
e. the loss of the R plasmid from Gram negative bacteria
ANSWER C
4. Which of the following T lymphocytes is important in the development of humoral immunity?
a. TD cell
b. TH cell
c. TC cell
d. NK cell
e. This is a trick question - T lymphocytes can only contribute to cellular immunity
ANSWER B
5. A naturally occurring substance in the plasma which inhibits viral replication is
a. leukocidin
b. bacteriocin
c. lysozyme
d. interferon
e. hyaluronidase
ANSWER D