BI 173 - Second Exam - 1998


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. The processing of an immune response is largely done by
                            a. B Cells                 b. T Cells                c. Thrombocytes 
                            d. Dendrites                e. If it was the government, we'd all be dead


_______ 2. A tube digestive system is an improvement over a sac system because it allows
                            a. Food to spend longer in the system                 b. More oxygen in
                            c. More phagocytosis                                         d. Better specialization
                                    e. A much less disgusting alternative for...never mind...


_______ 3. Oxygen debt is "paid off" into
                            a. The aerobic phase of respiration                     b. Capillaries
                            c. The anaerobic phase of respiration                  d. Lymph vessels
                                                    e. Um, Chemical Bank...?


_______ 4. Molecules normally covering a "nonself" organism would be
                            a. Ectoplasm             b. Antibodies             c. Antigens
                            d. Formed elements                 e. Disgusting


_______5. Symbiotic organisms, usually bacteria, aid some animals to
                            a. Extract oxygen from soil spaces             b. Keep their heat in
                            c. Digest plant fiber                                   d. Build skeletal tissue
                            e. Get their taxes done early, and get a refund as well


_______6. Which is the proper order of animal organization levels?
                            a. Cell - tissue - protoplasm - organ 
                            b. Protoplasm - cell - tissue - organ
                            c. Tissue - protoplasm - cell - organ 
                            d. Cell - protoplasm - organ - tissue
                            e. If this is their promotion track, they've got some problems


_______7. Evolution means change over time, but some animals appear to have evolved 
                                    a resistance to change, probably because they are
                            a. In very stable niches                     b. The last of their species
                            c. Very advanced forms                   d. Purely homeostatic
                                    e. The animal equivalents of Rush Limbaugh


_______8. Which is a flexible rod used as a swimming aid?
                            a. Cuticle                 b. Notochord                 c. Malpighian tubule
                            d. Pseudopod                 e. I just use one of those foam boards...



_______9. Fluid that leaks from capillaries is picked back up by the
                            a. Glomerulus             b. Lymphatic System             c. Veins
                            d. White Blood Cells             e. Bounty Towel Tissues


_______10. Hemostasis is a word associated most closely with
                            a. Internal environment                        b. Immune reactions
                            c. Nervous system processing             d. Blood clotting
                            e. The panic that's beginning to set in right about now...


_______11. Which statement is true about vertebrate and invertebrate integument?
                            a. Only vertebrates have dermis             b. Both groups have dermis
                            c. Only invertebrates have epidermis      d. All of these are true
                                        e. The whole thing has way too many syllables


_______12. Both open and closed circulatory systems always have
                            a. Veins                 b. Lymphatics                 c. Capillaries
                            d. Pumps                     e. Problems with gross leakage


_______13. Which would be directly connected to the human body's mineral needs?
                            a. Digestion of fiber             b. Respiration             c. Flame cells
                            d. Red blood cell production         e. Does that include gold and silver?


_______14. What distinguishing feature of mammals is based on their teeth?
                            a. Only mammals have true teeth
                            b. Each mammal has several different tooth types
                            c. Mammals generally have an unlimited supply of teeth
                            d. Only mammals have teeth capable of grinding food up
                            e. Mammals have the prettiest smiles of all of the animals


_______15. Peristalsis is a process for
                            a. Moving food along                     b. Generating endothermic heat
                            c. Processing in neurons                 d. Pumping air
                                                        e. Delaying Peri


_______16. Countercurrent systems are used for
                            a. Heat regulation and pumping blood
                            b. Oxygen exchange and pumping blood
                            c. Heat regulation and oxygen exchange
                            d. Pumping blood and moving nutrients
                            e. Sounds like a company directive from McDonald's


_______17. Daily torpor is a
                            a. Energy-saving process in endotherms
                            b. Energy-saving process in ectotherms
                            c. Behavioral pattern in ectotherms
                            d. Process essentially the same as sleeping
                            e. Newspaper with a really unappealing name


_______18. An animal that catches small food by straining it out of passing water is:
                            a. Deposit feeding             b. Filter feeding             c. Fluid feeding
                            d. Particulate feeding             e. Must be lousy at making conversation



Short Answer.

Pick TEN Questions to answer in the spaces provided.
NOTE: if you answer MORE than ten, only the first ten will be corrected. Four Points each.

Partial credit is possible.

1. Specifically, what advantage is gotten from being an osmotic conformer? (Explain, don't define!)




2. What are two different functions served by air sacs in birds?




3. What advantage do ectotherms have over endotherms?




4. What is myelin?




5. What are two distinctly different specific subtypes (as in not the general subtypes) of muscle tissue?




6. What is a tracheal system, and what sort of animal would have one?




7. Endotherms are virtually never aquatic respirers. What's the basic metabolic reason for this?




8. For two of the symptoms of inflammation, name the symptom and briefly explain what produces that particular symptom.




9. What are two distinctly different types of animal movement systems?




10. Why is most likely that evolution is both gradual and punctuated?




11. Briefly explain why, to maintain homeostasis, an animal must remain
"OPEN"
"CLOSED"

12. What are two physical traits commonly found in cutaneous respirers?




13. If an animal "doesn't need" a particular vitamin, what does this probably indicate about its chemistry?




14. Serial homology: what is it?




15. What histological feature distinguishes connective tissue from the other tissue types?




16. Name two structures used to increase surface area in digestive systems.




17. Fresh water animals have adapted to their overly-dilute environment with what two basic strategies?




18. Why exactly do animals need to emulsify fat with bile?



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.
Six Points Each. Partial credit is possible.

1. What are six functions served by integument?







2. Advanced excretory systems tend to use the same basic three-step process. What is it?




3. The "arc" of nervous system processing (input, processing, output...) involves, in order, what five types of structures?



4. Name four structures found in closed circulatory systems, and briefly define the structure in a way that clearly distinguishes each from the other.





5. Name the three basic excretory products, and for each give an advantage it gives to the animals that produce it as a primary process.




6. For the two general types of rigid skeletons, give the name, an advantage each has over the other, and a disadvantage each has compared to the other.
Type:
Advantage
over other:
Disadvantage
versus other:

7. Name the five regions of a typical alimentary or digestive canal, and for each region give one structure or organ that is associated with that region.






8. What are six different materials that would be carried primarily dissolved in plasma?


 

LINK TO ANSWER KEY


BONUS QUESTIONS. 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.

Why exactly does an ameba have to stick itself down while it crawls? Three Points.




Name a feature from dinosaur fossils used to decide if they were endothermic. Five Points.




The atmosphere of Earth is mostly Nitrogen. What feature of Nitrogen has allowed it to build up to such proportions? Four Points.




The system that produces allergies in humans is probably set up to defend against what particular type of invader? Three Points.




Why are many hearts set up as dual pumping systems? Five Points.




For Three Points each, what ingested materials are significantly processed in the liver?




Why are eggs more dangerous now than in years past? Four Points.




What odd behavior is connected with a roundworm infection? Three Points.

 

 

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