BI 171 - Fourth Exam - 2004
Place the letter of the choice that
best answers the question on the line to the left.
Links in numbers go to relevant sections of the book. Some details were only covered in class.
_______ 1. A major step in both photosynthesis and respiration is
b. Conversion of light frequencies
_______ 2. C4 photosynthesis is found in
a. All land plants
b. Desert plants
c. All aquatic plants
_______ 3. An acrosome would be found in a
_______ 4. Steroid hormones get into cells because the steroid molecules
a. Are quite small
b. Use existing pores in the membrane
_______5. Why has Caenorhabditis elegans been so useful as a research animal?
a. Itís closely related to us
_______6. Which is true of all consumers, compared to all producers?
a. They have more species and more total biomass
_______7. The nervous system is a product of
_______8. Group transfer potential is at work during
b. Crossing over
_______9. The two main electron-carrying coenzymes are associated with
a. Dietary minerals
b. B vitamins
_______10. A genome includes
a. All of the genes, only
b. All of the DNA
_______11. Ammonia results from
a. Digestion of proteins
b. Digestion of lipids
_______12. Decomposers are
a. Neither consumers nor producers
_______13. Feedback control over biological systems is usually
_______14. Which procedure uses radioactively-tagged RNA molecules?
a. Protein electrophoresis
b. DNA electrophoresis
_______15. Since NAD picks up electrons and transports them away, it is
a. An oxidizing agent
b. A reducing agent
_______16. Coenzyme A (coA) is an important player in
a. Transduction pathways
_______17. An antenna complex is mostly made up of
a. Muscle tissue
c. Polar bodies
_______18. A polar body is
a. Where the spindle originates
Pick NINE questions to answer in the spaces provided.
NOTE: if you answer MORE than nine, only the first nine will be corrected.
Four Points each. Partial credit is possible.
Select and answer completely any four
of the following questions.
Answer as many or as few as you wish. You can't lose points on the rest of the exam by getting these wrong. Partial credit is possible.
How is crossing over used to map genes on chromosomes? Four Points.
What advantage is there to being both male and female but not self-fertilizing? Four Points.
How does life on Earth "break" the Second Law of Thermodynamics? Four Points.
Why are lipid molecules so full of calories? Four Points.
Why, according to theory, is it important that only the sperm nucleus gets into the egg cell? Four Points.
Of the two "trunks" of animal groups, there is only one that shares our side. Which group is it? You can answer it with a typical "member." Three Points.
What is Sturgeonís Law? Three Points.
Restriction enzymes occur naturally in bacteria. What is their natural function? Three Points.
What was the specialty of the researcher responsible for the Polymerase Chain Reaction? Three Points.