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SC 139 - Third Exam 2001
MULTIPLE CHOICE.
On the line to the left, place the letter of the choice that best answers the question.
Three Points Each.
NOTE: "e" answers are never the correct answer.
1. One should not be able to find cilia
_______
a. In large numbers on a cell
b. With an attached membrane
c. Through a regular light microscope
d. Being used for swimming
e. Without the proper government forms
2. Pollen is a type of
_______
a. Seed
b. Spore
c. Egg cell carrier
d. Sperm carrier
e. Government conspiracy
3. Pollen sets up fertilization by
_______
a. Growing a small functional plant
b. Drawing the important cells up in the receiving plant
c. Growing a tube into the receiving plant
d. Creating an empty seed casing
e. Going into Internet chatrooms
4. Of the two types of angiosperm stems, only herbaceous stems have
_______
a. Veins
b. Chlorophyll
c. Rings
d. Pseudopods
e. A daddy named Herbert
5. A pine cone could best be described as a
_______
a. Reproductive structure
b. Nitrogen gatherer
c. Endosymbiont
d. Type of seed
e. Necessary fall decoration
6. Plants require a source of nitrogen as
a. An ingredient of the sugar made in photosynthesis
b. To be part of their major structural molecules
_______
c. A part of their protein molecules
d. The crucial part of their main energy molecules
e. A reason to get up in the morning
7. Mass flow occurs mostly in the
_______
a. Phloem
b. Roots
c. Xylem
d. Leaves
e. Hips after eating chocolate
8. Which would not have real stems?
_______
a. Moss
b. Fern
c. Pine tree
d. Rose
e. Um, roots?
9. Most of the photosynthesis that occurs in a leaf happens in the
_______
a. Upper epidermis
b. Lower epidermis
c. Palisade layer
d. Spongy layer
e. Photosynthesis layer
10. Which should definitely occur in a plant whenever its stomates are open?
_______
a. Photosynthesis stops
b. Photosynthesis begins
c. Water moves down
d. Water moves up
e. Yet another embarrassing story of going into the field with its stomates open
11. Plants, like most advanced organisms, have cells that
_______
a. Are diploid
b. Are haploid
c. Lack nuclei
d. Only reproduce sexually
e. Look good in green
12. Pseudopods can be used for
_______
a. Swimming and reproducing
b. Crawling and floating
c. Crawling and swimming
d. Swimming and floating
e. Confusing students on exams
SHORT ANSWER.
Answer any eight of the following questions for 4 Points Each.
Note: if you answer more than eight, only the first eight will be corrected.
You can get partial credit on these answers.
1. Give an example, using proper terms, of a flower's structure that is related to its mode
of pollination. (Describe the structure and the pollination method.
2. It could be said that the development of pollen was the most significant evolutionary step
for land plants. Briefly explain why it was so important.
3. What are two types of ecosystems where conifers generally do better than angiosperms?
4. Why would something be called a pioneer organism?
5. What are two of the root's growth zones?
6. What are the two main structures inside a typical seed?
7. What is the basic biological purpose of a fruit?
8. Briefly explain why ferns go through alternation of generations.
9. For ferns, give the type of reproduction and the product(s) of -
10. Each pine tree carries two distinct types of cones. Give two sets of differences
between them.
11. Briefly explain how coevolution works in general.
12. What are the two basic parts of a typical leaf?
13. What are two different processes in plants that are strongly affected by hormones?
14. What are two different types of "bribes" that flowers might offer to their pollinators?
15. What is the primary purpose of root hairs?
16. Briefly explain what it is that makes a tree ring look like a ring - what are the light and
dark zones, and why are they light and dark?
LONG ANSWER.
Answer any four of the following questions for Eight Points Each.
Note: if you answer more than four, only the first four will be corrected.
You can get partial credit on these answers.
1. Give four sets of differences between the groups. Be sure to be clear what features are
being compared!
2. For the differences between males and females, name the types of gametes associated
with each and then three sets of differences between those gametes.
3. For four parts of a flower, name the part and either describe it or give its function.
4. Name the four plant tissue types, and for each give a single example of a plant structure
made from that type of tissue.
5. Briefly explain (a term by itself is not enough)
three ways that water can be moved up
in a plant.
6. Describe (don't just name structures) four different methods of asexual reproduction
in plants.
CLICK
HERE FOR ANSWER KEY
BONUS QUESTIONS.
Answer as many as you are able. Wrong answers will not result in points
being lost from the main exam. You can get partial credit on these answers.
Some relatively successful land plants have remained tied to open water sources for reproductive
purposes. What animal group could be described the same way? Four Points.
Why do most organisms go through a haploid phase? Four Points.
You only needed to know one of the four groups of gymnosperms. For Three Points each, what
are the others?
The structure that becomes an endosperm in plants - what happens to it in animals? Three Points.
For Three Points each, what are some different aspects of the environment that can bring about seed
germination?
When a shoot emerges from a seed, it grows upward in response to what feature of the
environment? Three Points.
You put a nail in a young tree four feet off the ground with about 2 inches of nail showing. How will
those 2 features change in about 20 years, assuming the nail is still there? Four Points.
What is usually going on inside a person who "gets over" either amebic dysentery or beaver fever?
Three Points.
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