EEES 1160 (Plants & Society)
Exam 1 (Fall 2005)
Name________________
Instructions: Fill in answers on the accompanying "bubble" sheet. Remember, there is
only one correct answer per question. Write name on bubble sheet and on this sheet.
Turn both the bubble sheet and this section in to me.
1)
abcde-
Which of the following is not included in the definition of a "plant"?
does photorespiration
photosynthetic, using chloroplasts
cell wall comprised of cellulose
complex multi-cellular
eukaryote
2)
abcde-
Which of the following is not often true of a cell functioning mostly in support?
dead
parenchyma
wall with both cellulose and lignin
secondary cell wall
sclerenchyma or fiber
3)
abcd-
Identify the tissue that functions primarily in storage in roots.
epidermis
xylem
phloem
ground
4)
abcde-
Which of the following is not a major plant organ.
chloroplasts
leaves
flowers
stems
roots
5)
abcde-
What kind of plants exhibit primary growth derived from apical or primary meristems?
flowering plants
mosses
woody plants
ferns
all of the above
6)
abcde-
Which is not true of cellulose?
protein
glucose polymer
carbohydrate
most abundant organic molecule
un-digestible by most organisms
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7) What term describes the movement of molecules from an area of high concentration to an
area of low concentration?
a- bulk or mass flow
b- capillary force
c- diffusion
d- active transport
e- translocation
8)
abcde-
Which of the following contains embryonic cells?
apical meristem
root tips
axillary meristem
lateral meristem (aka, vascular cambium)
all of the above
9)
abcd-
Which of the following contains the highest concentration of energy?
carbohydrate
protein
lipid
nucleic acid
10) Why, for the above question?
a- more ATP
b- more electrons to donate
c- bigger proton gradient
d- more oxidized
e- more NAD(P)H
11) Which of the following taxa has the highest rates of photorespiration?
a- C3 plants
b- C4 plants
c- CAM plants
d- unicellular algae
e- all plants have high photorespiration
12) Which is not true of C4 plants, relative to C3 plants?
a- require more light
b- like warmer temperatures
c- use less water
d- have greater photosynthesis at high CO2
e- have less rubisco
13) Which is not true of (mitochondrial) respiration?
a- occurs during the daytime
b- occurs in leaves
c- catabolism of glucose/fructose by glycolysis, then Kreb's Cycle, then electron transport
d- none of the above
e- all of the above
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14) Which plant organelle packs the biggest "punch" nutritionally?
a- cell wall
b- chloroplast
c- vacuole
d- ribosome
e- peroxisome
15) Why do few organisms eat plant cell walls?
a- walls are chemically stable
b- walls are low in protein
c- wall proteins lack essential amino acids
d- lack enzymes to break down cellulose & lignin
e- all of the above
16) Do plants concentrate most nutrients obtained from the environment, dilute them, or
store them at approximately the same concentration?
a- concentrate
b- dilute
c- same
17) Which process below is not involved in the major mechanism of water uptake by plants
from soil?
a- strong cell walls in the xylem
b- negative pressure in the xylem
c- positive pressure in the xylem
d- mass flow of water in xylem
e- cohesion of water within xylem
18) Which of the following is not part of the light reactions of photosynthesis?
a- chlorophyll & carotenoids
b- photosystem I & II
c- thylakoid membranes
d- rubisco
e- proton gradient
19) Which kind of plants will benefit most from rising atmospheric CO2?
a- CAM
b- C4
c- C3
d- none will benefit
e- all will benefit equally
20) Why, in general, are plant tissues so dilute in nutrients, relative to animals?
a- because soil is dilute in nutrients, and that's where plants get their nutrients
b- because plants are not very efficient at extracting nutrients from soil
c- because of dilution by the tonoplast
d- none of the above
e- all of the above
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21) What color of light drives photosynthesis best?
a- blue & red
b- green
c- ultra-violet
d- infra-red
e- all visible light equally
22) Which is not true of photosynthesis?
a- requires light to induce electron donation (reduction)
b- uses electron-transfer reactions to generate a proton gradient to make ATP
c- creates oxygen as a waste product
d- converts inorganic carbon (CO2) to organic carbon (CH2O)
e- requires only one enzyme (which is very large, slow, imprecise, abundant)
23) Which of the following is not true, as pertains to photorespiration?
a- involves the Kreb's cycle
b- is an example of imperfect evolution
c- catalyzed by rubisco
d- consumes energy and O2
e- generates CO2
24) Which is true for all plants?
a- use Calvin cycle and rubisco for CO2 fixation
b- fix CO2 first using an enzyme other than rubisco
c- use a CO2 pump to concentrate CO2
d- all of the above
e- none of the above
On the back-side of this test:
25-26) List two ways a plant might improve its ability to take up more nutrients by its roots.
27-28) List two ways a plant might improve its ability to harvest light.
29-30) Briefly, explain how emerald ash borer kills ash trees so efficiently.
31-32) Briefly (2-3 sentences), compare and contrast maple sap movement with movement
of photosynthetic products from leaves to roots?
32-35) Lastly, on the separate piece of paper, very briefly (e.g., in 3 sentences only) tell me 3
things that you learned studying for this exam that I did not ask you about.
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