BI 171 - Second Exam - 2011
Two Points Each. NOTE: “e” answers are never the correct answer.
1. Chaperonins are involved in
a. Electron transfer b. Movement through membranes
c. Protein folding d. Conducting heat
e. Supervising the world’s tiniest adolescents
2. Atoms can be radioactive if they have the
“wrong” number of
a. Neutrons b. Electrons c. Radions
d. Protons e. Facebook friends
Evo-devo looks mostly at evolutionary changes driven by
a. Point mutations b. Gene shifts c. Environment
d. Gene expression e. 80s music groups
4. Which bonds happen between areas that are
a. Ionic b. Covalent c. Hydrogen
d. Segmented e. Crappy
Which is a polymer?
a. Sugar b. Starch c. Amino acid
d. Lipid e. Turtle Wax?
A molecule is particularly organic if it
a. Is only found in living things
b. Has carbon in it
c. Has carbon and hydrogen in it
d. Has carbon, hydrogen, and oxygen in it
e. Is grown in animal droppings
_______7. During digestion, organic polymers are broken down into components
a. Dehydration synthesis b. Hydrolysis
c. Respiration d. Refraction
An unsaturated molecule would have
a. All single bonds b. All multiple bonds
c. At least one multiple bond d. All of these
e. No need for a towel
Minerals are often integrated into functional
a. Complexes b. Pathways c. Peptides
d. Prosthetic groups e. Quantum buddies
The very first food chains would have started with
a. Photosynthesis b. Chemosynthesis
c. Aerobic respiration d. Anaerobic respiration
e. Just burgers and fries
The snowball period probably had its greatest impact on
evolution due to
a. Oxygen release b. Oxygen reduction
c. Reduction of living spaces d. Drop in temperature
e. How much fun it was
For evolutionary comparisons, the preferred molecule is
a. Nuclear DNA b. Mitochondrial DNA
c. Membrane lipids d. Structural proteins
e. Cheap and easy to get along with
_______13. The steroid hormone estrogen can be produced by cells with a lot
of material of the same general type.
What type of cells?
a. Muscle b. Bone c. Cartilage
d. Fat e. Huh? What? Huh?
The first “living” molecular complexes are thought to have been
a. Carbohydrates b. RNA c. Proteins
d. Cells e. Very smelly
The chirality of an amino acid is associated with
a. What end the amino group is on
b. Where it is in a protein sequence
c. What sort of R group there is
d. How the main bonds are twisted
e. Whether it was traumatized as a little amino acid
The Hardy-Weinberg Rule is about
a. Gene pools over time b. How different groups evolve
c. Different reproductive strategies d. Mutation types
e. Two guys and their love of rules
What is it about water that produces surface
a. Evaporation b. Adhesion
c. Freezing d. Cohesion
e. When the surface is really attracted to someone…
_______18. Confirmation that DNA alone could be used to create whole microbes came
from work with
a. Primordial soup b. Viruses c. Plasmids
d. Mitochondria e. Fast-food restaurants
Short Answer. 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.
Who was Rosalind Franklin? Three Points.
What sort of inheritance clearly follows Lamarkian patterns? Three Points.
What was first called “epigenetic” is now called by what term? Three Points.
Why are there only 2 elements on the first row of the Periodic Table? Three Points.
What free radical is most likely damaging your cells right now? Three Points.
Why is there so much nitrogen in the atmosphere? Three Points.
Why do our local lakes “turn over” late in the year? Three Points.
The most common thermal insulation in nature uses what material as the heat barrier? Three Points.
What non-“Big 4” element is used as a bridge atom to hold proteins together? Three Points.
What turned out to be the same sort of molecule as heat-shock proteins? Three Points.