SC 135 - Fourth Exam 2011
Links connect to relevant parts of the online book.
On the line to the left, place the letter of the choice that best answers the question.
Three Points Each. NOTE: "e" answers are never the correct answer.
1. It appears the snowball period was directly needed for what step?
_______ a. Complex plants b. Cellular life
c. Complex animals d. Modern humans
e. The evolution of mittens
2. Electron transport chains produce a lot of
_______ a. ATP b. Enzymes c. Sugars
d. Cells e. Noise
3. What are usually coupled in coupled reactions?
_______ a. Hot and cold b. Metabolic and waste
c. Enzyme and inhibited d. Exergonic and endergonic
e. Not sure, but I don't want to see their hooking-up websites
4. The first major stage of a mass extinction affects the
_______ a. Top predators b. Plants
c. Decomposers d. Water
e. Property values
5. Cofactors are usually
_______ a. Enzymes b. ATP c. Minerals
d. Vitamins e. Not paid the big bucks
6. We know the materials in primordial soup because they still exist
_______ a. Deep in the Earth b. On other worlds
c. In stardust d. All of these
e. On the original billing receipts
7. Modern evolutionary theory sees evolution as changes in
_______ a. Reproduction types b. Gene pools c. Classes
d. Food chains e. Popular music
8. The hardest challenge of life on land, the last actually solved by both
animals and plants, involved
_______ a. Reproduction b. Breathing c. Support
d. Nutrition e. Where to find a good pizza
9. A layer of rust (iron oxide) in the fossil record is a marker for the
_______ a. Asteroid impacts b. Rise of photosynthesis
c. Ice ages d. Death of plants
e. Great Scrap Iron Age
10. Which would have specificity?
_______ a. Enzymes and receptors b. Sugars and starches
c. Anaerobic organisms d. Fossil layers
e. Is that even really a word?
11. Molecules in the first complex living systems are thought to have been
_______ a. Proteins b. Carbohydrates c. DNA
d. RNA e. Gooey
12. Nitrogenous wastes come from
_______ a. Protein breakdown b. Protein synthesis
c. Anaerobic respiration d. Cell membranes
e. Places we don't want to think about
Answer any eight of the following questions for 4
Answer any four of the following questions for Eight Points Each.
Note: if you answer more
than four, only the first four will
BONUS QUESTIONS. Answer as many as you are able. Wrong answers will not result in points being lost from the main exam. You can get partial credit on these answers.
Evolution can happen faster in small populations. Explain why. Three Points.
Why are there more described species of beetles when they probably are not actually the biggest group? Three Points.
The conservation law (First Law of Thermodynamics) used to be 2 laws - what happened to make it become a single law? Three Points.
Why are so many metabolic products considered multiple-gene traits? Three Points.
What is a regulatory site? Three Points.
What ability do cofactors have that enzymes usually do not? Three Points.
Where would you find most hydrothermal vents today? Three Points.
What part of lipids are fed into respiration? Three Points. And why do they contain so much energy? Three Points.
What is panspermia? Three Points.
Why exactly are religious explanations for the beginnings of Life not considered scientific? Three Points.
Plants could never have moved onto land without what symbionts (Two Points), and why? (Three Points)