BI 171 - Fourth Exam - 2007

Each question's number is linked to the relevant part of the online book, if possible (some questions relate to multiple sections).

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.  Anaerobic metabolism can produce

                    a. Alcohol         b. Carbon dioxide         c. Lactic acid        d. All of these         e. Nasty stuff


_______ 2.  Which testing procedure involves radioactive markers?

                    a. Southern Blot         b. Mass spectroscopy        c. Electrophoresis         d. Transduction
                                                e. The one I don't want any part of


_______ 3.  Where would one find a typical 2nd messenger?

                    a. Between cells         b. In the membrane        c. In the cytoplasm         d. In the nucleus
                                                            e. In a big brown truck


_______ 4.  Group transfer potential is an important aspect of

                    a. Receptors         b. ATP         c. Glucose         d. Fertilization         e. Passenger trains


_______ 5.  An acrosome is

                    a. What produces spindle                     b. What spindle attaches to                    c. Part of plant seed
                    d. Part of a sperm                                        e. A neat word if you say it with an announcey-type voice


_______ 6.  An embryo can be considered a fetus when

                    a. All of the major structures have appeared                          b. It can live independently
                    c. All of the major structures become functional                    d. All of the basic tissues have formed
                                                      e. It puts in an application and gets a co-signer

_______ 7.  The major electron transport chains produce mostly

                    a. Glucose        b. Carbon dioxide         c. NADH        d. ATP         e. Bondage fantasies


_______ 8.  Which are types of pigments?

                    a. Carotenoids         b. Spindles         c. Kinases        d. Ferredoxins         e. Aren't those pork-flavored lozenges?


_______ 9.  Prokaryotes use what sort of structure to separate chromosomes during cell divisions?

                    a. Spindles                         b. Attachment points inside the membrane                        c. Microfilaments
                    d. They don't separate them                e. They scold them and give them times-out in different corners


_______ 10.  What is found in an antenna complex?

                    a. Pollen         b. Egg cells         c. Developing embryos        d. Chlorophyll molecules         e. Cell phone signals


_______ 11.  Reradiation happens when electrons

                    a. Jump out a level                     b. Jump inward a level                    c. Leave completely
                    d. Exchange between atoms                    e. Get a mortgage they can't really afford.


_______ 12.  Embryonic stem cells are valuable because they can potentially become any type of body cell.
                        Which group has this type of cell?

                    a. Algae         b. Protostomes         c. Prokaryotes        d. Deuterostomes         e. Stemmy types


_______ 13.  Which is true about ATP?

                    a. It breaks down to ADP and is made from ADP
                    b. It breaks down to AMP and is made from AMP
                    c. It breaks down to AMP and is made from ADP
                    d. It breaks down to ADP and is made from AMP
                    e. Too many initials! Make it stop! Make it stop!


_______ 14. The larger, more permanent form of a land plant is the

                    a. Male         b. Female         c. Gametophyte        d. Sporophyte         e. Well, it's green, right...?


_______ 15.  Which involves a positive geotaxis?

                    a. Ameba moving away from the light                            b. Sprouting stem growing up
                    c. Antelope moving away from a predator's scent            d. Sprouting root growing down
                        e. I didn't know they made taxis out of Geos - aren't they too small?

_______ 16.  Both NAD and FAD

                    a. Only work with ATP                     b. Are taken in as B vitamins                    c. Work in animals but not plants
                    d. Work in plants but not animals                                        e. Um, have "AD"s-?


_______ 17.  The root tip cells we checked in the lab should

                    a. Be part of a meristem                     b. Have a special chlorophyll                    c. Produce a lot of polar bodies
                    d. All be haploid                                            e. Have been easier to see, seriously


_______ 18.  In the Polymerase Chain Reaction, the highest temperature is needed to

                    a. Separate the DNA strands from the histones                    b. Get the primers to attach
                    c. Cause the strands of DNA to separate                             d. Purify the samples
                                                            e. Keep the lab nice and toasty


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.  In a redox reaction, what happens to the reactant that is -




2.  Give two general tissue functions found in both animals and plants.



3. What are two general rationales found in groups that do alternation of generations?



4.  Electrophoresis separates molecules or parts of molecules based upon what two factors?



5.  What are two things that happen during Meiosis I that never happen during mitosis?



6. What are two basic features of water that keep it moving up vascular systems of large land plants?



7. Which particular metabolic reactions involve -






8.  What are two possible benefits from a life cycle involving metamorphosis?



9.  Give two different classes of signal ligands.



10.  Growth in a multicellular organism involves what two processes of the cells?



11.  What are two different ways that polyspermy is prevented?



12.  What two fundamentally different things generally happen during interphase?



13.  What is one way that genome mapping can be used in basic (non-medical) research?



14.  How do producers and consumers compare, in terms of -




15.  What are the three major stages by which energy moves through a food chain, in order?



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 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.


















2.  Answer for respiration - Most common fuel -


Step done by ALL organisms -


Materials that can act as
terminal electron acceptors -


3.  Give four sets of differences, for any applicable species, between








4.  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
                *                                 * /   *         *                               *    \    *



5. For three different types of model research organisms, give the organism and give an area of basic research that they are commonly used for.






6.  For the three embryonic germ layers in animals, name the layer and give one body system that is mostly derived from that layer.






7.  Give four basic steps of glycolysis. They don't have to be in-a-row consecutive, but they do need to be in proper order.








8.  For each stage of actual mitosis, name the stages in order and for each describe one thing that happens only during that stage.









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.


How do fungi reproduce sexually without male or female - what do they do? Three Points.

Why is ATP the basic fuel, rather than the fuel everything makes or consumes? Three Points.


Organisms seem to "break" the 2nd Law of thermodynamics. What "loophole" in the law really allows them to do this? Three Points.


Algae often use different chlorophylls. What do the different chlorophylls allow some of them to do? Three Points.


How does sperm behavior change (from what to what) when it gets close to an egg cell? Three Points.


Extra sets of chromosomes are associated with what process in plants? Three Points.


Why is vascular tissue critical to the success of pollen? Three Points.

What is the basic purpose of a fruit? Three Points.

Research into what organisms led to the development of the Polymerase Chain Reaction technique? Three Points.




BI 171



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