BI 171 - Fourth Exam - 2005
Place the letter of the choice that
best answers the question on the line to the left.
_______ 1. The same environment can carry a larger population of a species capable of
b. Aerobic respiration
_______ 2. Which can act as electron acceptors in respiration processes?
a. Water and glucose
b. Sulfur and oxygen
_______ 3. Which is commonly produced during phosphorylation?
a. ADP b. AMP c. ATP d. Glucose e. Phosphoryl
_______ 4. What starts as a surface plate but eventually becomes an internal tube?
a. Digestive system
b. Circulatory system
_______ 5. Which is an example of negative chemotaxis?
a. Plant root growing downward
_______ 6. Okazaki fragments are produced
a. From activated chlorophyll
b. On DNA, but only on one side
_______ 7. In a human, which tissue is mostly in mesoderm structures?
c. Skeletal muscle
_______ 8. Which is a type of signal ligand?
_______ 9. As a species, dogs are
_______ 10. In general, G proteins
a. Are the primary receptors
b. Activate enzymes
11. The reason that aerobic respiration is
considered more efficient than anaerobic
a. Uses more oxygen
b. Produces more ATP
_______ 12. Which would do the Calvin cycle?
a. Lizard b. Grass c. Roundworm d. Mushroom e. Hobbes
_______ 13. NADH is involved in moving electrons to molecules, which makes it a(n)
a. Reducing agent
b. Phosphate producer
_______ 14. A particular class of cells united through common features is a
c. Fetus d.
_______ 15. Caenorhabditis elegans has contributed to many discoveries about
b. Respiratory pathways
_______ 16. Which is true?
a. A reaction center leads into the Krebs cycle
_______ 17. Across the whole Earth ecosystem, how do producers compare to consumers?
a. Consumer species outnumber, producers have more total mass
_______ 18. Of the pathways in typical food chains
a. Materials and energy recycle to the beginning
Pick NINE questions to answer in the spaces
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 do funguses have sex? Three Points.
Which vitamins are used to make (2 Points each):
What feature determines how sensitive a tissue will be to radiation damage? Three Points.
For Three Points Each, up to four steps, give specific steps that are mirror-imaged between photosynthesis and aerobic respiration.
Recent studies have implicated what element as the limiting factor in open-ocean food chains? Three Points.
C4 photosynthesis is useful in slowing which process in plants? Three Points.
Why do fats have so many calories? Three Points.
Why do only the sperm nuclei enter the egg cell during fertilization? Three Points.
What shape are blastulas really, usually? Three Points.
What chapters did we not get to? Three Points each.