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SC 139 - Third Exam 1996
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. Rhizoids are
_______
a. Asexual underground structures
b. Rootlike structures in nonvascular plants
c. Asexual aboveground structures
d. Branches off main root systems
e. Some sort of rash you catch in embarrassing ways
2. Which is true about auxins?
_______
a. They make root cells grow larger
b. They make stem cells
grow larger
c. They are attracted to sunlight
d. They cause flowers to sprout
e. They probably are lousy at pulling carts
3. Which is most likely to be involved with mass flow?
_______
a. Root drawing in water
b. Pseudopod extension
c. Pushing with flagellum
d. Maple sap draining
e. Moving Roseanne around Hollywood
4. Guard cells serve to
_______
a. Protect a colony
b. Control plant pores
c. Protect a root
d. Defend against parasites
e. Seems like the guards won't do you much good locked in cells...
5. A free-living organism would most likely be found
_______
a. In a plant
b. In an animal
c. Out in the environment
d. In a place with no predators
e. In a drunken stupor
6. Flowers can be found in
_______
a. Angiosperms only
b. All vascular plants
b. Angiosperms & gymnosperms
d. All land plants
e. Most cases where feet have been inserted into mouths
7. The organism that causes malaria is a
_______
a. Sporozoan
b. Flagellate
c. Bacterium
d. Fungus
e. Nice, friendly, but misunderstood creature
8. Materials move up from the roots through
_______
a. Meristems
b. Xylem
c. Phloem
d. Pith
e. Yearly promotions.
9. Growth in a plant occurs in
_______
a. Every section
b. Meristems only
c. The very center
d. Leafy areas only
e. Years that cells take pay cuts
10. Which is the photosynthetic organ of a vascular plant?
_______
a. Stem
b. Root
c. Vein
d. Leaf
e. That seems a bit personal...
11. Which is true about an endosperm?
_______
a. It has only 1 set of chromosomes
b. It has 2 sets of
chromosomes
c. It has 3 sets of chromosomes
d. It has 4 sets of chromosomes
e.
Eeny, meeny, miny, moe...
12. A plant would open its stomates to
_______
a. Allow oxygen to enter
b. Let water out
c. Absorb water from the air
d. Allow carbon dioxide to
enter
e. The paying public if it really needed the money
13. Photosynthesis happens mostly in which tissue?
_______
a. Ground
b. Dermal
c. Meristematic
d. Vascular
e. Super Puffs, if they're green
14. Waterproofing in a plant is provided mostly by
_______
a. Stomates
b. Cuticle
c. Chlorophyll
d. Pith
e. Green-tinted ScotchGuard
15. A small, green flower with parts sticking out is probably
_______
a. Attracting colorblind insects
b. Not reproductive
c. Wind pollinated
d. Pollinated by bats
e. Not a popular Valentine's Day item
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.
1. Name TWO processes that help water move up a closed tube.
2. When a plant germinates, what input from the environment causes the shoot
to grow upward?
3. What does each of these ciliate structures do?
Macronucleus:
Micronucleus:
4. What purpose is served by a root cap?
5. Roots have two major functions. What are they?
6. One odd group can exist as separate amebas, big fused amebas, or multicelled
fruiting bodies. What are these organisms called?
7. Plant hormones are used to regulate processes. Name TWO different
processes controlled by hormones in plants.
8. What is transpiration?
9. What is a stamen?
10. Which layer of a leaf is full of air spaces? (Not pores, but spaces.)
11. People who travel to Mexico may get dysentery from what sort of organism
that lives in the water? Be fairly specific.
12. What are TWO different ways in which trichomes are used?
13. What are TWO characteristics of Protistans?
14. Match the protozoan group types with the human cells that resemble them.
_____ Amebas
A. Breathing tube lining cells
_____ Flagellates
B. Sperm
_____ Ciliates
C. White Blood Cells
15. What is the main purpose of a fruit?
16. Which protozoan group includes most of the plantlike protozoans?
LONG ANSWER.
Answer any three of the following questions for Eight Points Each.
Note: if you answer more than three, only the first three will be corrected.
1. What are FOUR sets of differences between monocots and dicots?
MONOCOTS
DICOTS
2. Answer the following sequence of questions or fill in the blanks.
Beaver fever is caused by an organism called ___________, from the ________
group.
Where does it come from, and how do you catch it?
What's it do once inside you, and what effects does it have at first?
If untreated, what eventually happens
to you?
3. For the diagram (not available online, but imagine a picture of a
trunk cut across) of the tree, label the
following:
A. Bark
B. Best growth year
C. Worst growth year
D. Xylem
E. Phloem
How old was the tree when in was cut down?
4. Name and briefly describe three types of asexual reproduction in angiosperms.
5. Name the four major protozoan groups, and for each, tell the way they usually move
around and what structures they use to do their moving around.
6. From the production of pollen to the formation of the seed, describe the steps
in between, including the plant structures involved.
BONUS QUESTIONS.
Answer as many as you are able. Wrong answers will not result
in points being lost from the main exam.
In order for a grower to mass-produce seedless fruit, what does (s)he have to be able to
do with the plant? Three Points.
If you have PAM, what can be done for you?
What very unusual thing results when two ciliates have sex? Three Points.
Why is Beaver Fever called that? Three Points.
Why aren't mosquitoes likely to be passing any new blood diseases? Three Points.
Vote: should the "e" answers stay or go? Two Points.
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