ECONOMIC BOTANY - BOTN 328 - FINAL EXAM - Fall, 1993
(sample exam)
 KEY

I. Fill in the blanks: (30 points)

 

1. The LIGHT REACTION of photosynthesis, water is split to produce __O2__ and ENERGY, whereas the CALVIN CYCLE consumes _CO2__ to produce carbon compounds.

 

2. The flowering plant division Magnoliophyta is divided into two classes, the _MONOCOTS______ and the ____DICOTS________.

 

3. Malting is artificial germination of the cereal _BARLEY_______ to produce a class of enzymes known as __AMYLASES____ which breakdown __STARCH_______ to sugars for fermentation.

 

4. Pulque, produced by fermentation of juices from the monocot genus ___AGAVE____ can be distilled to produce the stronger beverage __TEQUILA____.

 

5. The molecular structure of vegetable oils consists of a backbone made up of __GLYCEROL____ upon which various types of __FATTY ACIDS___ are attached.

 

6. Wild African trees of Acacia senegal, a native of ___AFRICA____ in the family ___FABACEAE_____, are tapped to produce 90% of the world's supply of __GUM ARABIC___.

 

7. Commercial development of rubber was stimulated when ____MACINTOSH_______ discovered in 1823 that rubber was soluble in hexane, and the later (1839) discovery by ____GOODYEAR___________ of 'vulcanization.'

 

NOTE: 16 blanks here - everyone gets 2 FREE points!

 

II. Match Plant with Crop (select 30 - 30 points)

 

** USE THIS ANSWER COLUMN FOR QUESTION V ALSO **

 
1
AA
Alfalfa
a. Agave sisalana
2
BB
Banana 
b. Allium cepa
3
U
Barley
c. Avena sativa
4
NN
Black-eyed Pea 
d. Brassica campestris
5
MM
Breadwheat
e. Brassica oleracea 
6
E
Broccoli
f. Camellia sinensis
7
E
Cabbage
g. Cannabis sativa
8
I
Chicory
h. Capsicum annuum
9
LL
Cocoa
i. Cichorium intybus
10
L
Coir
j. Citrullus lanatus
11
L
Copra
k. Citrus sinensis
12
O
Cucumber
l. Cocos nucifera
13
II
Eggplant
n. Colocasia esculenta
14
Q
Fig 
o. Cucumis sativus
15
X
Flax
p. Cucurbita pepo
16
OO
Grape
q. Ficus carica
17
EE
Guayule
r. Glycine max
18
G
Hemp
s. Helianthus annuus
19
E
Kale
t. Hevea brasiliensis
20
W
Lettuce
u. Hordeum vulgare
21
FF
Lima Bean
v. Ilex paraguariensis
22
PP
Maize 
w. Lactuca sativa
23
CC
Manila hemp
x. Linum usitatissimum
24
V
Mate
y. Lupinus texanus
25
KK
Milo
z. Lycopersicon esculentum
26
C
Oats
aa. Medicago sativa
27
B
Onion
bb. Musa paradisiaca
28
K
Oranges
cc. Musa textilis
29
GG
Peas 
dd. Oryza sativa
30
JJ
Potato
ee. Parthenium argentatum
31
H
Red Pepper 
ff. Phaseolus lunatus
32
DD
Rice
gg. Pisum sativum
33
T
Rubber 
hh. Secale cereale
34
HH
Rye
ii. Solanum melongena
35
A
Sisal
jj. Solanum tuberosum
36
R
Soybean
kk. Sorghum bicolor
37
N
Taro
ll. Theobroma cacao
38
F
Tea
mm. Triticum aestivum
39
Z
Tomato 
nn. Vigna unguiculata
40
D
Turnip
oo. Vitis vinifera
41
J
Watermelon
pp. Zea mays
NOTE: blanks and crossouts = no response, if not 11 blanks or crossouts %misses of those answered taken from 30

 

III. Briefly define: (select 10 - 30 points)

Bombilla: metal 'straw' used in drinking Mate'

chicha: Native American beer: amylase provided by saliva

Convergent Evolution: similar characteristics arise in different lineages (bats and birds, cereals and pseudocereals)

Double Fertilization: angiosperm feature where BOTH sperm function in zygote and endosperm production

Epigynous: floral appendages attached ABOVE the ovary: inferior ovary

Heterosis: hybrid vigour

Laticifer: specalized latex-holding cell

Malt: partially germinated barley

Microgametophyte: sperm-producing plant of the angiosperm life cycle

Paracelsus: originated the 'Doctrine of Signatures'

Phloem: vascular plant conductive tissue: transports photosynthate

Retting: isolate bast fiber and allowing surrounding tissue to degrade

Xylem: vascular plant conductive tissue: transports water and nutrients

 

IV. You are on a job interview. Your potential employer (a botany buff), noting Economic Botany on your transcript, takes you to the supermarket to test your academic skills. Your mission: determine if the crop is of New World (N) or Old World (O), if the crop is a monocot (M) or a dicot (D), and what plant part is used (select most accurate item from the 'Plant Parts' group of responses . (select 15): (45 points)

 
Plant
Origin
Class
Structure
Plant Parts
Almond
O
D
P
a. Berry
Apple
O
D
O
b. Bractiole 
Artichoke
O
D
J/B/Q
c. Bulb
Cane Sugar
O
M
E
d. Caryopsis
Celery
O
D
N
e. Culm
Cherry
O
D
F
f. Drupe
Cloves
O
D
H
g. Endosperm
Copra
O
M
G
h. Flower bud
Corn Flour
N
M
G
i. Hesperidium
Fig
O
D
U/Q/L
j. Inflorescence Bud
Grapefruit
O
D
I
k. Leaf 
Irish Potato
N
D
V
l. Multiple Fruit
Onion
O
M
C/K
m. Pepo 
Peach
O
D
F
n. Petiole
Radish
O
D
R
o. Pome
Spinach
O
D
K
p. Pyrene
Squash
N
D
M
q. Receptacle 
Strawberry
O&N
D
Q
r. Root
Sweet Corn
N
M
D/L/J
s. Stem
Sweet Potato
N
D
R
t. Stigma
Tomato
N
D
A
u. Synconium
Whole Wheat
O
M
D
v. Tuber 
 

NOTE: blanks and crossouts = no response, if not 7 blanks or crossouts %misses of those answered taken from 45

 

V. Using the list of species provided by question II, match species with description: (15 points)

 

 

1. OO European production from this woody vine requires grafts onto rootstocks from North American species of the genus

 

2. F British use of this leaf-producing Asian shrub increased after yields from drupe-producing African shrubs decreased because of a blight in Sri Lanka

 

3. G A dioecious, wind pollinated annual that yields bast fiber, oil, and intoxicating resins

 

4. I Coffee substitute and leafy vegetable of the Asteraceae

 

5. R An ancient Asian legume that yields tofu and soy sauce

 

6. S The only major world crop that originated in what is now the United States.

 

7. U Perhaps the oldest cereal crop which serves, in modern times, a primary function in the production of beer

 

8.V A caffine-rich holly from southeastern South America

 

9. Z Evolved in central or South America, initially thought to be poisonous in Europe, later adopted by Italy

 

10. MM The world's greatest cash crop

 

11. EE A shrub from the southwestern U.S. and Mexico that provides an alternative to Hevea rubber.

 

12. NN An African bean that people tend to call a pea

 

13. DD The World's most important food crop

 

 14. E A polymorphic, cruciferous species, not favored by President Bush, that provides food from stem, leaf, and inflorescence

 

15. JJ An edible stem from the Andes



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