BI 171 - Fourth Exam
Each question's number is linked to the relevant part of the online book, if possible (some questions relate to multiple sections).
Place the letter of the choice that best answers the
question on the line to the left.
1. What happens in an
a. Metamorphosis is controlled b. Light is absorbed c. Egg cells interact with sperm enzymes
d. Molecules separate e. Kids worry about bumps on their heads
_______ 2. A particular gene is deactivated in
a. Transduction b. ATP synthesis c. Knockout mice d. Metamorphosis
e. The new version of the Gene Wars video game
_______ 3. Which would be derived from mesoderm?
a. Heart b. Brain c. Stomach d. Skin e. Self esteem
_______ 4. Reradiation generally involves "jumps" by
a. Carbon atoms b. Protons c. Electrons d. Glucose molecules e. Tiny figures on tiny screens
_______ 5. Which begins as part of a long external plate?
a. Gut b. Bark c. Brain d. Root e. Airport
_______ 6. Which is true?
a. Consumers have more species and biomass than producers b. Producers have more species and biomass than consumers
c. Producers have more biomass but consumers have more species d. Consumers have more biomass but producers have more species
e. I really really don=t care about any of this
_______ 7. An epitope is part of
a. An antibody b. A receptor c. A signal ligand d. An antigen e. A complete healthy breakfast
_______ 8. Auxins in stems produce
a. Positive phototaxis b. Negative chemotaxis c. Negative phototaxis
d. Positive chemotaxis e. Something involving taxis, apparently
_______ 9. Coenzyme A is a carrier between
a. Membrane and cytoplasm b. Outer and inner membrane c. Glycolysis and Krebs cycle
d. NAD and FAD e. Santa and the tree
_______ 10. Protein electrophoresis samples are placed near the positive pole. After running, the samples farthest
from where they were originally put are
a. Larger and more negative b. Larger and more positive c. Smaller and more negative
d. Smaller and more positive e. Really much happier in their new location
_______ 11. Polyspermy would result in
a. Extra organelles b. Single extra chromosomes c. Extra zygotes
d. Extra sets of chromosomes e. Parrot paternity suits
_______ 12. Which would activate an enzyme?
a. Receptor b. Gene c. G protein d. Protein kinase e. The little switch in the back
_______ 13. Ferredoxin would be found in
a. Plants b. Egg cells c. Animals d. Fungi e. Fast food
_______ 14. Carrying capacity is a strong factor in
a. Gene therapy b. Water movement in plants c. Oxidizers
d. Metamorphosis e. Truck commercials
_______ 15. Group transfer potential is a feature of
a. Embryonic development b. Fungus reproduction c. Electrophoresis
d. ATP chemistry e. Merging orchestras
_______ 16. Early land plants needed alternation of generations because they
a. Couldn't be tall and sexual b. Had to increase carrying capacity c. Were responding to auxin effects
d. Used to be fungi e. Had signed a long-term contract and couldn't afford to break it
_______ 17. What are two functions specialized in particular classes of plant tissues but not specialized in animal tissues?
a. Mitosis and meiosis b. Fluid tubes and mitosis c. Movement and support
d. Fluid tubes and support e. Why would plants need tissues - they don=t cry...
_______ 18. A genome database can be used for finding
a. New model organisms b. Unknown proteins c. Homologous genes
d. Analogous genes e. Dates for your genome
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.
Note: if you answer more than four, only the first four will be corrected.
Seven Points Each. Partial credit is possible.
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.
The electron-carrying enzymes belong to what class of vitamins? Three Points.
What tissue types' functions are based on electrical potentials? Two Points each, wrong balances right.
Life seems to break the 2nd Law of Thermodynamics - why doesn't it? Three Points.
Some radiation is called ionizing radiation - why, exactly? Three Points.
A photon is equivalent to what other unit? Three Points.
What symbionts are critical to the success of land plants (Two Points), and what do they do? (Three Points)
Why does just the sperm nucleus enter the egg cell? Three Point.
Pollen combines what two pre-existing abilities? Three Points.
How do two parts of the same fungus come to be genetically different? Three Points.
What is the natural function of restriction enzymes? Three Points.
Why might DNA fingerprinting be unreliable? Three Points.