BIO 171 - Second Exam - 2015

Multiple Choice.
Place the letter of the choice that best answers the question on the line to the left.
Two Points Each. NOTE: “e” answers are never the correct answer.

_______ 1. What is the most important aspect of a microscope?

                a. Maximum magnification         b. Resolution        c. Breadth of field         d. Lens depth
                                        e. Whether a famous person once owned it

_______ 2. Malthus influenced what aspect of eventual evolutionary theory?

                a. How features get passed                 b. What kind of features get passed
                c. How populations are affected          d. How environment factors in
                                e. Which ones get discussed on Fox News

_______ 3. Ferredoxin

                a. Picks up and moves electrons during respiration
                b. Picks up and moves electrons during photosynthesis
                c. Is the cytoplasmic link of the typical signalling pathway
                d. Is the membrane link of the typical signalling pathway
                e. Is an old French song about somebody's brother's dachshund

_______ 4. Hydrogen atoms are transferred in most

                a. Oxidation reactions         b. Membrane pumps        c. Osmotic transfers
                d. Exergonic Reactions       e. Stock transactions - it's in the very small print

_______5. Which would be a product of artificial selection?

                a. Picking “typical” classification specimens        b. Microwavable popcorn
                c. Voting in national elections                            d. All of the above
                                    e. “Choosing” a cable tv provider

_______6. Which is the best explanation for why it is common for genes to be in sequences
                                that match pathway sequences in prokaryotes?

                a. There is no transfer RNA in prokaryotes
                b. The genes actually perform as enzymes in the pathways
                c. Chromosomes leave the nucleus when needed
                d. Ribosomes are in actual contact with the genes
                e. Because if it wasn't common you couldn't ask this question

_______7. Which confounding factor is most closely associated with postmodernism?

                a. Ethics         b. Placebo effect         c. Statistical insignificance        d. Artifacts
                                            e. What’s tied to a post now-?

_______8. Which is true of prokaryotes?

                a. Their nucleosomes are enclosed in just one membrane
                b. Virtually all species share the same characteristic chromosome number
                c. They are too small to be resolved by any type of microscope
                d. They have cell walls but not cell membranes
                e. They were happier when they were amateurs

_______9. A hypothesis isn’t testable if it isn’t

                a. Widely accepted         b. Controllable        c. Predictive         d. Logical
                                    e. Something that can fill in bubble on a sheet

_______10. An evolutionary pace of short, dramatic bursts with long stable periods between:

                a. Geologic         b. Catastrophic         c. Staccato stasis         d. Punctuated         e. Hurry up and wait

_______11. The basic chemical process involving NAD and NADH is

                a. ATP production         b. ATP use        c. Redox         d. Glycolysis
                                                e. Chemicals have ‘nads-?

_______12. Similarities between species are preserved in embryos more than adults because changes there

                a. Are never good             b. Make for bigger overall changes             c. Never happen
                d. Are better detected by biologists            e. Do things to a baby's cuteness quotient

_______13. In study of an ecosystem, individuals are collectively a ______, and a
                            group of those are a ________.

                a. Niche…population         b. Population…communitie        c. Population…niche
                d. Communitie…population                e. Group…group of groups

_______14. Compared to glycolysis, aerobic respiration has roughly how many times more ATP production?

                a. Five         b. Eighteen         c. Fifty        d. Two             e. Metric or English?

_______15. Overall, producers have _______ and _______ compared to consumers.

                a. More biomass…more species                 b. Less biomass…fewer species
                c. Less biomass…fewer species                 d. More biomass…fewer species
                                            e. More production…less consumption

_______16. If a group’s family “tree” is put together according to cladistics, each branching point represents

                a. A new feature appearing         b. A new gene appearing        c. An ancestor group splitting
                d. An extinction                                            e. A new branch, duh!

_______17. The main function of the electron transport chain is to

                a. Process glucose and half-glucose                          b. Produce ATPs
                c. Activate membrane transport functions                 d. Process oxygen
                e. Of course, “move electrons” isn’t a choice…why isn’t it a choice???

_______18. Uniformitarianism is an important concept for

                a. Classification of similar groups
                b. Getting scientists working from the same rules
                c. Understanding processes from the distant past
                d. Preparing microscope specimens
                e. Creating words that Scrabble can’t touch

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.

1. What are two different “life features” that viruses do not have?


2. During eukaryote photosynthesis, chlorophylls are organized into two configurations – what are the names of those configurations?


3. Give two different examples where anaerobic organisms benefit humans -


4. Give two different examples where anaerobic organisms harm humans -


5. If a paper presents evidence that wings in the subgroups of bats are a derived feature, what exactly does that mean?

6. If you’re looking for an ecosystem based upon chemosynthesis, where exactly should you look?

7. Give two different examples of processes that actually involve Lamarkian inheritance.


8. Briefly explain what happens to produce a frequency change in reradiation.

9a. In the laboratory, what is sectioning?

9b. Why is that sectioning done?

10. Put the following groups in order from the largest to the smallest:  Class, Domain, Family, Genus, Kingdom, Order, Phylum, Subphylum, Superorder. (No species on the list)


4 7
2 5 8
3 6 9

11. For the most reliable distinguishing feature that differs between the two groups – give the distinction for each:


12. C4 photosynthesis tends to occur in hot, dry ecosystems. Give the potential advantages C4 provides in the -


13. Give two fundamentally different examples of biological memes.


14. What are two different uses for carotenoids?


15. Briefly explain reductionism.

16. Give two major sets of differences between


17. Give two different disadvantages for electron microscopes, compared to light microscopes.


Long Answer.

 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.

1. For nitrogenous wastes in animals -
What process creates
the basic wastes?
What are the 3 basic “final” waste products?

2.  For the two steps of photosynthesis, give the names of the steps and for each, list all of the types of energy and/or materials input and output.
First Step -

Input -
Output -
Second Step -

Input -
Output -

3.   Answer for sexual reproduction:




Compared to Asexual


Compared to Asexual

4. Four different features of our modern approach to science (this is not looking for steps in the scientific method process!)



5.  Give four rules from the classic Cell Theory.








6.  Give the steps that, according to the Theory of Evolution by Natural Selection, should happen between the steps given. 
The environment around a population changes

The new population is different enough to be considered a new species.

7.  Give two different rules that apply specifically to each in binomial nomenclature:

8.  At the points labeled with the stars, attach the appropriate labels from this list:
Violet. X-Ray. InfraRed. Red. Blue. Ultraviolet.
         High Frequency       \           Visible Range          /            Low Frequency        
       *                           *   /   *       *                        *   \   *

Link to Answer Key


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 two major electron-carrying coenzymes fall into what specific food category? Three Points.

What major items / topic areas from the class notes wound up missing from the study sheet? Three Points Each.

Why did humans probably consume cheeses before consuming milk? Three Points.

Why did the “classification guy” call himself Carolus Linnaeus? Three Points.

Which group is continually “popping in and out” of the Animal Kingdom into its own separate Kingdom? Three Points.

The modern “species” definition does not work for what types of organisms, and why? Three Points.

The lab tests from our organic chemistry lab were qualitative. Why? Three Points.

Why was Darwin hired to travel on the HMS Beagle? Three Points.

What is allowable for a Law in biology that would not be allowable in physics? Three Points.

How can an inappropriate antibiotic treatment today lead to an antibiotic-resistant strain of disease-causing bacteria later? Three Points.


BI 171



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